RZT 50
CUB CADET LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 [www.cubcadet.com]
PRINTED IN U.S.A. FORM NO. 769-01127D
TRACTORS
Model Numbers
(2/07)
RZT SERIES
Parts Manual
w/50" Mower Deck
-2-
DESCRIPTION PAGE
Frame and Drive Idler Assembly ..................................... 3
Electrical .......................................................................... 4
Operator’s Platform ......................................................... 6
Controls and Deck Lift ..................................................... 8
Rear Drive and Wheels ................................................... 10
Seat Adjustment .............................................................. 11
RH Transmission ............................................................. 12
LH Transmission ............................................................. 14
50" Mower Deck .............................................................. 16
Engine Connections ........................................................ 18
Front Axle ........................................................................ 20
Engine .............................................................................
Air Filter ........................................................................
Cylinder/Crankcase.......................................................
Pistons and Crankshaft ................................................
Camshaft and Valves ...................................................
Lubrication ....................................................................
Cooling .........................................................................
Flywheel / Electrical ......................................................
Engine Control ..............................................................
Carburetor ....................................................................
Fuel Filter/Pump ...........................................................
Starter ...........................................................................
21
22
24
25
26
27
28
29
30
31
32
TABLE OF CONTENTS
MODEL RZT 50
NOTE: For painted parts, please refer to the
list of color codes below. Please add the appli-
cable color code, wherever needed, to the
part number to order a replacement part.
For instance, if a part, numbered 700-xxxx, is
painted Cub Yellow, the part number to order
would be 700-xxxx-0716.
Cub Yellow: 0716
Cub Beige: 0499
Powder Black: 0637
-3-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 603-04303C
777D10717
777I22489
Frame Assembly ...............................
Graphic, Cub Cadet .......................
Graphic, Release Lever .................
1
1
2
2 703-05829 Idler Arm, Drive ............................... 1
3 710-0520 Screw, Hex Cap, 3/8-16 x 1.5 GR5 3
4 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 1
5 712-04065 Nut, Hx Insert Flnge Lck, 3/-16 GrF 4
6 732-0626 Spring, Extension, .75 x 5.06 .......... 1
7 736-0300 Washer, Flat, .408 x .875 x .059 ..... 1
8 738-04058 Spacer, Shoulder, .39 x 1.0 x .7 ...... 2
9 738-04162A Spacer, Shoulder, .884 x .19 ......... 1
10 756-04129 Pulley, Idler, 4.25 Dia. ..................... 1
FRAME AND DRIVE IDLER ASSEMBLY
1
2
3
5
5
6
10
4
9
8
5
3
7
-4-
ELECTRICAL
8
5
6
7
9
13
6
17
10
12
16
1
18
Section of Main Wire Harness
(Reference Only)
21
3
4
19
11
14
15
15
4
2
20
-5-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 710-0227 Screw, Hex Wash. Hd. Tapp ............
#8-18 x .5
2
2 710-0599 Screw, Hex Wash. Hd. Tapp, ...........
1/4-20 x .5
2
3 710-3015 Screw, Hex Cap, 1/4-20 x .75 GR5 .. 2
4 712-0271 Nut, Hex Sems, 1/4-20 ..................... 4
5 725-04022B Meter, Hour ...................................... 1
6 725-04165 Switch, Dbl. Pole - Neutral ............... 2
7 725-04174 Switch, PTO ..................................... 1
8 725-04228 Switch, Ignition ................................. 1
9 725-04232 Switch, 3-Pole, (NC-NO-NO) - Brake 1
10 725-1303 Switch, Outer Seat Spring ................ 1
11 725-1426A Solenoid ........................................... 1
12 725-1439 Switch, Inner Seat Spring ................. 1
13 925-1745 Key ................................................... 1
14 725-1707D Battery, 235 CCA ............................. 1
15 725-3166 Switch, Snap Mount (N.C.) - Reverse 2
16 726-0278 Plate, Insulator Boss ........................ 1
17 726-0279 Plate, Insulator ................................. 2
18 726-0470 Tie, Cable ......................................... 2
19 703-05894 Bracket, Battery Holddown ............... 1
20 731-0511-5 Strip, Trim ......................................... 4.5in
21 710-0653 Screw, Hex Wash. Hd. Tapp, ...........
1/4-20 x .375
2
† 725-04434 Harness Assembly, Wire .................. 1
ELECTRICAL
† NOT SHOWN
-6-
OPERATOR’S PLATFORM
1
2
3
8
9
10
11
12
13
14
16
18
17
3
4
4
4
6
6
5
6
6
6
8
16
6
6
5
6
11
10
6
7
6
6
18
15
7
20
19
20
21
21
-7-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 603-04326B
777S32836
777I22764
777I22763
Frame, Seat Box ...............................
Graphic, Warning ...........................
Graphic, Park Brake .......................
Graphic, Deck Height .....................
1
1
1
1
2 703-05373B
777D10716
777D10660
Bracket, Foot Rest ............................
Graphic, Cub Cadet .......................
Graphic, RZT 50 ............................
1
1
1
3 703-05467 Bracket, Switch Mounting .................. 2
4 710-04261 Screw, Hex Wash. Hd Tapp ..............
#12-16 x .50
4
5 710-0599 Screw, Hex Wash. Hd. Tapp. ............
1/4-20 x .5
4
6 710-0604A Screw, Hex Wash. Hd. Tapp .............
5/16-18 x .625
20
7 710-0726 Screw, Hex Wash. Hd. Tapp .............
5/16-12 x .75
4
8 710-0778 Screw, Hex Wash. Hd. Tapp. ............
1/4-20 x 1.5
2
9 710-1268 Screw, Hex Wash. Hd Tapp ..............
#10-16 x .375
2
10 712-0298 Nut, Hex Jam, 1/4-20 GR2 ................ 2
11 712-04092 Nut, U Type Speed, 1/4-20 ............... 2
12 735-04082 Pad, Foot ........................................... 1
13 731-04662C
777I22750
777D10554
777I22280
Console, LH ......................................
Graphic, Instruction ........................
Graphic, Cub Cadet .......................
Graphic, Throttle Control ................
1
1
1
1
14 731-04663B
777I22753
777D10555
Console, RH ......................................
Graphic, Instruction ........................
Graphic, Cub Cadet .......................
1
1
1
15 732-04035 Spring, Compression, 1.28 x 3.125 2
16 732-04200 Spring, Switch Actuator ..................... 2
17 757-04041 Seat ................................................... 1
18 783-1489C Bracket, Seat Pivot ............................ 2
19 726-3046 Clip, Ratchet ...................................... 9
20 736-0148 Washer, External Tooth, 3/8 ............. 3
21 710-1260A Screw, Hex Wash. Hd. Tapp .............
5/16-18 x .75
2
OPERATOR’S PLATFORM
-8-
CONTROLS AND DECK LIFT
3
1
42
2
5
7
9
8
35
14
15
16
19
22
23
27
25
28
29
33
30
32
34
39
36
43
41
6
9
15
16
17
21
22
33
34
39
39
41
44
44
40
39
12
17
31
13
27
40
19
26
5
6
36
4
4
10
11
18
18
18
18
20
20
20
20
21
21
24
37
37
38
38
24
45
47
46
-9-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 603-04160B Shaft Assembly, Deck Lift ................... 1
2 603-04322 Lever, Lapbar, RH ............................... 1
3 603-04324 Lever, Lapbar, LH ............................... 1
4 947-04065 Rod, Brake .......................................... 2
5 647-04099 Shaft, Control ...................................... 2
6 703-05387A Bracket, Lapbar Pivot .......................... 2
7 703-05396 Handle, Brake ..................................... 1
8 703-05414A Bracket, Front Deck Hanger ................ 1
9 703-05793A Arm, Deck Lift ...................................... 2
10 703-05907 Plate, Lift Link ...................................... 2
11 710-0433 Screw, Hex Lock, 1/4-20 x .62 GR5 .... 2
12 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 ... 1
13 710-3008 Screw, Hex Cap, 5/16-18 x .75 GR5 ... 2
14 710-3180 Screw, Hex Cap, 5/16-18 x 1.75 GR5 2
15 711-0832 Ferrule, 3/8-24 x .375 .......................... 2
16 712-0206 Nut, Hex, 1/2-13 GR5 .......................... 4
17 712-04063 Nut, Hx Flange Insert Lck, 5/16-18 GrF 6
18 712-04064 Nut, Hx Flange Insert Lck, 1/4-20 GrF 4
19 712-04065 Nut, Hx Flange Insert Lck, 3/8-16GrF 4
20 712-0431 Nut, Hex Flange Lock, 3/8-16 GRF 5
21 714-0104 Pin, Internal Cotter .............................. 6
22 716-0106 E-Ring , .625 Dia. Shaft ...................... 4
23 720-0311 Grip, Handle ........................................ 1
24 727-04141 Cylinder, Damper ................................ 2
25 731-04735 Grip, Handle ........................................ 1
26 731-05732 Spacer, .62 x 1.0 ................................. 1
27 731-05882 Grip, Hand ........................................... 2
28 732-0334 Spring, Compression ........................... 1
29 732-04422 Spring, Torsion .................................... 1
30 736-0270 Washer, Bell, .265 x .75 x .062 ........... 2
31 736-0272 Washer, Flat, .51 x 1.0 x .06 ............... 2
32 736-0275 Washer, Flat, .344 x .688 x .065 ......... 2
33 736-3019 Washer, Flat, .531 x 1.062 x .134 HT .. 2
34 738-0143 Screw, Shoulder, .498 x .340:3/8-16 4
35 738-0296 Screw, Shoulder, .437 x .268:5/16-18 2
36 738-0507B Screw, Shoulder, .5 x .434:3/8-16 ....... 4
37 738-0572 Screw, Shoulder, .374 x 1.16:1/4-20 ... 2
38 738-0974 Screw, Shoulder, .375 x .38:1/4-20 ..... 2
39 741-0225 Bearing, Hex Flange ........................... 6
40 741-3074 Bearing, Flange, .626 x .938 x .344 .... 2
41 747-04225A Rod, Lapbar Control ............................ 2
42 747-04401A Rod, Deck Front Hanger ..................... 1
43 747-04637 Rod, Deck Lift Handle ......................... 1
44 748-04052 Hub, Control ........................................ 2
45 750-04676 Spacer, .385 x .63 x .75 ...................... 2
46 732-04420 Spring, Torsion LH .............................. 1
47 732-04421 Spring, Torsion RH .............................. 1
CONTROLS AND DECK LIFT
-10-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 618-04317
710-0852
Hub, Wheel ......................................
Stud, Rib Neck, 7/16-14 x 1.6 ......
2
8
2 618-04431
618-04431A
Transmission Assembly, LH - Before
Mfg. Date A267
Transmission Assembly, LH - Mfg.
Date A267 & After - Replaces 618-
04431
1
3 618-04432
618-04432A
Transmission Assembly, RH - Before
Mfg. Date A267
Transmission Assembly, RH - Mfg.
Date A267 & After - Replaces 618-
04432
1
4 634-04128
734-1729
603-04175
734-0255
Wheel Ass’y, 18 x 9.5 x 8
Tire, 18 x 9.5 x 8 ...........................
Rim Assembly ..............................
Valve Assembly ............................
2
2
2
2
5 710-0176 Screw, Hex Cap, 5/16-18 x 2.75 GR5 4
6 710-0395 Screw, Hex Cap, 5/16-18 x 2.25 GR5 2
7 710-3119 Screw, Hex Cap Lock, ......................
3/8-16 x .75 GR5
2
8 712-04063 Nut, Hx Flnge Insert Lck, 5/16-18 GrF 6
9 712-0459 Nut, Hex Flange Lock, 7/16-20 GrB 2
10 712-3050 Nut, Lug, 7/16-14 ............................. 8
11 714-0507 Pin, Cotter, 3/32 x .75 ...................... 2
12 736-0227 Washer, Flat, .39 x 1.5 .134 ............ 2
13 738-04192 Rod, .405 x 14.0 .............................. 2
14 747-04217C Rod, Bypass .................................... 2
15 750-04561 Tube, .45 x .69 x 10.2 ...................... 2
16 754-04043 V-Belt, Type A Sec x 57.7 ............... 1
17 726-04059 Clamp, Hose - Used ONLY with
618-04431 & 618-04432 Trans.
2
18 751-10474 Hose, Breather - Used ONLY with
618-04431 & 618-04432 Trans.
2
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
REAR DRIVE AND WHEELS
1
2
5
13
15
10
14
3
4
5
10
4
7
6
1
6
11
17
11
8
16
9
8
17
7
12
12
18
18
-11-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 710-1268 Screw, Hx. Wash. Hd. Tapp ...........
#10-16 x .375
2
2 712-04063 Nut, Hx Insert Flange Lck, ..............
5/16-18 GrF
2
3 712-04064 Nut, Hx Insert Flnge Lck, 1/4-20 GrF 1
4 720-0309A Grip, Seat Adjustment .................... 1
5 726-0201 Nut, Speed, .3125 ........................... 2
6 731-04074 Spacer, Seat Adjustment ................ 4
7 732-0499 Spring, Compression, .41 x 1.5 ...... 1
8 732-1184 Spring, Extension, .84 Dia. x 4.6 .... 1
9 736-0204 Washer, Flat, .344 x .62 x .033 ....... 1
10 736-3019 Washer, Flat, .531 x 1.062 x .134 HT 2
11 738-0137A Screw, Shoulder, .34 x .285:1/4-20 1
12 738-0296 Screw, Shoulder, .............................
.437 x .268:5/16-18
2
13 738-0966A Screw, Shoulder, .5 x .925:3/8-16 ... 4
14 783-0209D Bracket, Seat Lift ............................. 1
15 783-0611 Stop, Seat Adjustment .................... 1
16 783-0738D Bracket, Seat Pivot .......................... 1
17 783-0739A Lever, Seat Adjustment ................... 1
18 783-0753 Index Bracket, Seat Adjustment ...... 1
19 736-0242 Washer, Belleville, .34 x .872 x .06 2
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
5
9
11
3
4
6
7
8
1
2
2
5
19
10
12
13
14
15
16
17
18
13
19
SEAT ADJUSTMENT
-12-
RH TRANSMISSION
47
2
3
6
5
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
48
50
60
51
52
53
54
56
57
61
62
64
65
66
4
8
13
30
49
63
68
1
31
37
55
58
59
67
Used with
618-04432
Transmission
-13-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 HG-70862R Housing Assembly, Main RH 1
2 HG-70863R Side Assembly, RH ............... 1
3 HG-51448 Plate, Bypass ........................ 1
4 HG-70723 Pump Block Assembly .......... 1
5 HG-52527 Spacer, .32 x 1.005 ............... 1
6 HG-70331 Motor Block Assembly .......... 1
7 HG-9005110-5600 Plug, SAE #6 ........................ 1
8 HG-9004800-2506 Pin, Stainless ........................ 2
9 HG-51190 Screw, Hex Self Tapping, .....
1/4-20 x 1.25
16
10 HG-44761 Seal, Brake ........................... 1
11 HG-50016 Bolt, Hex Flange, 3/8-24 x 2.5 3
12 HG-51626 Seal, Lip, .375 x .75 x .25 ..... 1
13 HG-51628 Ring, Retaining, .375 Ext. ..... 2
14 HG-51625 Rod, Bypass ......................... 1
15 HG-51627 Ring, Retaining, .75 Int. ........ 1
16 HG-51910 Arm, Bypass ......................... 1
17 HG-51630 Ring, Retaining, .375 Push ... 1
18 HG-51048 Swashplate, Trunnion ........... 1
19 HG-51140 Seal, Lip, 18 x 32 x 7 ............ 1
20 HG-51841 Arm, Control RH ................... 1
21 HG-44130 Washer, Flat, 11/32 x 7/8 x 1/16 1
22 HG-51812 Screw, 5/16-24 x 1.0 ............. 1
23 HG-2003014 Spring, Compression ............ 1
24 HG-2003017 Washer, .591 x .787 x .04 ..... 1
25 HG-51062 Shaft, Input ........................... 1
26 HG-50315 Bearing, Ball, 17mm x 40 x 12 1
27 HG-2000022 Ring, Wire Retaining, .561 .... 1
28 HG-50951 Spacer .................................. 1
29 HG-51161 Seal, Lip, 17 x 40 x 7 ............ 1
30 HG-50329 Ring, Retaining ..................... 2
31 HG-50551 Bearing, Thrust, 30 x 52 x 13 2
32 HG-44371 Washer, Flat, 5/8 x 1.0 x .05 1
33 HG-44145 Ring, Retaining ..................... 1
34 HG-51130 Gear, Pinion, 13T .................. 1
35 HG-51632 Shaft, Motor .......................... 1
36 HG-51069 Washer, .71 x 1.16 x .04 ....... 1
37 HG-50132 Washer, HT, .5 x 1.0 x .032 .. 2
38 HG-51129 Gear, 10T/48T ....................... 1
39 HG-51043 Gear, Jackshaft, 10T ............. 1
40 HG-51083 Pin, Jackshaft ........................ 1
41 HG-52531 Ring, Spiral Retaining ........... 1
42 HG-52541 Gear, Bull, 52T ...................... 1
43 HG-52532 Washer, 1.018 x 1.571 x .105 1
44 HG-52542 Bearing, Sleeve ..................... 1
45 HG-52545 Shaft, Axle, 1.0 x 11.7 ........... 1
46 HG-51517 Bushing, Axle ........................ 1
47 HG-51518 Seal, Lip, 1.0 x 1.57 x .25 ..... 1
48 HG-70868R Kit, Expansion Plate, RH ....... 1
49 HG-71351 Kit, Fan-Pulley ....................... 1
50 HG-71356 Kit, Brake Arm ....................... 1
51 HG-71530 Kit, Center Section-Filter RH 1
52 HG-71006 Kit, Bypass Arm .................... 1
53 HG-71497 Kit, Filter ................................ 1
54 HG-51635 Disc, Brake Cog .................... 1
55 HG-52366 Hub, Pulley ............................ 1
56 HG-52365 Fan, 7” 10 Blade ................... 1
57 HG-52364 Pulley, 4.5 ............................. 1
58 HG-51244 Nut, Hex Insert Lock, 1/2-20 1
59 HG-51523 Washer, OD Slotted .............. 3
60 HG-71510 Kit, Breather .......................... 1
61 HG-51616 Screw, Hx Patch, 5/16-24 x 1.0 1
62 HG-51950 Washer, 1.5 x .34 x .062 ....... 1
63 HG-51833 Spring, Extension .................. 1
64 HG-71095 Kit, Return Assembly RH ...... 1
65 HG-51945 Arm, Neutral RH .................... 1
66 HG-52432 Assemble, Return, Bi- Direct. 1
67 HG-71393 Fitting, w/Cap - Used only on
618-04432 Transmissions
w/ 751-10474 Breather Hose
1
68 751-10474 Hose Assembly, Breather —
Used Only with 618-04432
Transmissions Before Mfg.
Date A267
1
HG-70853 Kit, Seal ................................. 1
HG-50928 Sealant Tube, 10.3 oz ........... 1
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
RH TRANSMISSION
-14-
LH TRANSMISSION
1
2
3
6
5
7
8
9
10
11
12
13
15
14
16
17
18
19
21
22
23
24
25
26
27
28
29
31
32
33
34
35
36
37
38
39
40
41
42
43
45
46
50
51
48
53
54
55
56
57
49
61
62
63
64
65
66
4
8
13
30
60
59
20
31
37
30
44
47
58
52
68
67
Used with
618-04431
Transmission
-15-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 HG-70862L Housing Assembly, Main LH . 1
2 HG-70863L Side Assembly, LH ............... 1
3 HG-51448 Plate, Bypass ........................ 1
4 HG-70723 Pump Block Assembly .......... 1
5 HG-52527 Spacer, .32 x 1.005 ............... 1
6 HG-70331 Motor Block Assembly .......... 1
7 HG-9005110-5600 Plug, SAE #6 ........................ 1
8 HG-9004800-2506 Pin, Stainless ........................ 2
9 HG-51190 Screw, Hex Self Tapping, .....
1/4-20 x 1.25
16
10 HG-44761 Seal, Brake ........................... 1
11 HG-50016 Bolt, Hex Flange, 3/8-24 x 2.5 3
12 HG-51626 Seal, Lip, .375 x .75 x .25 ..... 1
13 HG-51628 Ring, Retaining, .375 Ext. ..... 2
14 HG-51625 Rod, Bypass ......................... 1
15 HG-51627 Ring, Retaining, .75 Int. ........ 1
16 HG-51910 Arm, Bypass ......................... 1
17 HG-51630 Ring, Retaining, .375 Push ... 1
18 HG-51048 Swashplate, Trunnion ........... 1
19 HG-51140 Seal, Lip, 18 x 32 x 7 ............ 1
20 HG-51842 Arm, Control LH .................... 1
21 HG-44130 Washer, Flat, 11/32 x 7/8 x 1/16 1
22 HG-51812 Screw, 5/16-24 x 1.0 ............. 1
23 HG-2003014 Spring, Compression ............ 1
24 HG-2003017 Washer, .591 x .787 x .04 ..... 1
25 HG-51062 Shaft, Input ........................... 1
26 HG-50315 Bearing, Ball, 17mm x 40 x 12 1
27 HG-2000022 Ring, Wire Retaining, .561 .... 1
28 HG-50951 Spacer .................................. 1
29 HG-51161 Seal, Lip, 17 x 40 x 7 ............ 1
30 HG-50329 Ring, Retaining ..................... 2
31 HG-50551 Bearing, Thrust, 30 x 52 x 13 2
32 HG-44371 Washer, Flat, 5/8 x 1.0 x .05 1
33 HG-44145 Ring, Retaining ..................... 1
34 HG-51130 Gear, Pinion, 13T .................. 1
35 HG-51632 Shaft, Motor .......................... 1
36 HG-51069 Washer, .71 x 1.16 x .04 ....... 1
37 HG-50132 Washer, HT, .5 x 1.0 x .032 .. 2
38 HG-51129 Gear, 10T/48T ....................... 1
39 HG-51043 Gear, Jackshaft, 10T ............. 1
40 HG-51083 Pin, Jackshaft ........................ 1
41 HG-52531 Ring, Spiral Retaining ........... 1
42 HG-52541 Gear, Bull, 52T ...................... 1
43 HG-52532 Washer, 1.018 x 1.571 x .105 1
44 HG-52542 Bearing, Sleeve ..................... 1
45 HG-52545 Shaft, Axle, 1.0 x 11.7 ........... 1
46 HG-51517 Bushing, Axle ........................ 1
47 HG-51518 Seal, Lip, 1.0 x 1.57 x .25 ..... 1
48 HG-70868L Kit, Expansion Plate, LH ....... 1
49 HG-71351 Kit, Fan-Pulley ....................... 1
50 HG-71356 Kit, Brake Arm ....................... 1
51 HG-71529 Kit, Center Section-Filter LH 1
52 HG-71006 Kit, Bypass Arm .................... 1
53 HG-71497 Kit, Filter ................................ 1
54 HG-51635 Disc, Brake Cog .................... 1
55 HG-52366 Hub, Pulley ............................ 1
56 HG-52365 Fan, 7” 10 Blade ................... 1
57 HG-52364 Pulley, 4.5 ............................. 1
58 HG-51244 Nut, Hex Insert Lock, 1/2-20 1
59 HG-51523 Washer, OD Slotted .............. 3
60 HG-71510 Kit, Breather .......................... 1
61 HG-51616 Screw, Hx Patch, 5/16-24 x 1.0 1
62 HG-51950 Washer, 1.5 x .34 x .062 ....... 1
63 HG-51833 Spring, Extension .................. 1
64 HG-71094 Kit, Return AssemblyLH ........ 1
65 HG-51946 Arm, Neutral RH .................... 1
66 HG-52432 Assemble, Return, Bi- Direct. 1
67 HG-71393 Fitting, w/Cap - Used only on
618-04431 Transmissions
w/ 751-10474 Breather Hose
1
68 751-10474 Hose Assembly, Breather —
Used Only with 618-04431
Transmissions Before Mfg.
Date A267
1
HG-70853 Kit, Seal ................................. 1
HG-50928 Sealant Tube, 10.3 oz ........... 1
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
LH TRANSMISSION
-16-
50" MOWER DECK50" MOWER DECK
5
1
3
2
4
6
8
12
14
11
9
16
17
16
20
21
23
24
25
29
27
26
13
32
31
34
35
36
36
37
39
38
40
41
42
43
2
8
8
10
10
10
11
15
18
16
16
17
17
29
33
33
33
36
12
19
22
28
30
7
16
16
44
46
49
49
51
45
47
50
17
47
48
-17-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 603-04328
777S32598
777S30503
777I22282
777D10633
777D10609
Housing, Deck ..........................................
Graphic, Danger ...................................
Graphic, Danger ...................................
Graphic, Instruction ...............................
Graphic, Deck Wash .............................
Graphic, 50" Cut ...................................
1
1
1
1
1
1
2 618-04126A Spindle Assembly .................................... 3
3 631-04070A
777S30284
Chute Assembly, Discharge .....................
Graphic, Danger ...................................
1
1
4 683-0254 Bracket, Deck Hanger .............................. 1
5 703-05825A Arm, Idler ................................................. 1
6 703-3279 Bracket, Stop ........................................... 1
7 703-3511A Guard, Finger ........................................... 1
8 710-0347 Screw, Hex Cap, 3/8-16 x 1.75 GR5 ........ 3
9 710-0528 Screw, Hex Cap, 5/16-18 x 1.25 GR5 ...... 1
10 710-0599 Screw, Hex Wash. Hd. Tapp,1/4-20 x .5 7
11 710-0726 Screw, Hex Wash. Hd. Tapp, 5/16-12 x .75 6
12 710-1260A Screw, Hex Wash. Hd. Tapp, 5/16-18 x .75 12
13 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 ........ 1
14 710-3168 Screw, Carriage, 3/8-16 x 1.0 .................. 1
15 710-3178 Screw, Carriage, 3/8-16 x .75 .................. 4
16 712-04065 Nut, Hx Insert Flange Lck, 3/6-16 GrF ..... 9
17 712-0417A Nut, Hex Flange, 5/8-18 ........................... 6
18 712-0431 Nut, Hex Flange Lock, 3/8-16 GRF .......... 4
19 712-0641 Nut, Hex, M16-1.5 .................................... 2
20 714-0470 Pin, Cotter, 1/8 x 1.25 .............................. 2
21 717-04074 Gear, Deck Adjustment ............................ 1
22 721-04041 Adapter, Water Nozzle ............................. 1
23 732-0306A Spring, Compression ............................... 2
24 732-0459 Spring, Extension, .94 Dia. x 6.74 ............ 1
25 734-04155 Wheel, Deck Ball, 5.0 ............................... 4
26 736-0119 Washer, Lock, 5/16 .................................. 1
27 736-0407 Washer, Bell, .45 x 1.0 x .062 .................. 1
28 736-0225 Washer, Internal Tooth Lock, 5/8 ............. 2
29 736-3072 Washer, Flat, .38 x .93 x .110 HT ............ 3
30 737-04003C Nozzle, Deck Wash .................................. 2
31 738-04162A Spacer, Shoulder, .884 x .190 ................. 1
32 738-3056 Screw, Shoulder, .5 x 2.5:3/8-16 .............. 4
33 742-04053B Blade, 2 in 1, 17.9 Lg ............................... 3
34 747-1116 Rod, Deck Hanger ................................... 2
35 754-04044A Belt V, Type A Sec x 134 ......................... 1
36 756-04129 Pulley, Idler, 4.25 Dia ............................... 3
37 783-04399 Cover, Belt LH .......................................... 1
38 783-04400 Cover, Belt RH ......................................... 1
39 783-04414 Skirt, Center ............................................. 1
40 783-04415 Skirt, RH ................................................... 1
41 783-05030 Bracket, Chute Mounting ......................... 1
42 732-04372 Spring, Torsion ......................................... 1
43 711-04565 Pin, Hinge ................................................ 1
44 736-0315 Washer, Flat, .76 x 1.50 x .12 .................. 3
45 737-3000 Fitting, Lube ............................................. 3
46 738-1010A Shaft, Spindle, 5.75 .................................. 3
47 741-0919 Bearing, Ball ............................................. 6
48 748-0160A Spacer, .79 x 1.25 x .175 ......................... 3
49 750-1000 Spacer, .80 x 1.10 x 1.32 ......................... 6
50 750-1349A Spacer, .79 x 1.82 x .55 ........................... 3
51 756-04216 Pulley, V Type, 5.39 ................................. 3
50" MOWER DECK
-18-
ENGINE CONNECTIONS
2
3
6
4
9
10
13
16
17
19
22
21
23
24
25
26
27
29
34
14
12
30
31
15
18
1
5
7
8
9
11
11
28
35
36
37
20
32
33
40
38
39
-19-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 703-05441A Bracket, Muffler Mounting ................ 1
2 710-0227 Screw, Hex Wash. Hd. Tapp ............
#8-18 x .5
3
3 710-04248 Screw, Hex Cap, 7/16-20 x 4.0 GR5 1
4 710-04261 Screw, Hex Wash. Hd. Tapp ............
#12-16 x .5
2
5 710-0599 Screw, Hex Wash. Hd. Tapp ............
1/4-20 x .5
4
6 710-0726 Screw, Hex Wash. Hd. Tapp ............
5/16-12 x .75
2
7 710-1315 Screw, Hex Wash. Hd. Tapp ............
3/8-16 x 1.25
4
8 710-3008 Screw, Hex Cap, 5/16-18 x .75 GR5 2
9 710-3217 Screw, Truss Hd. Mach. #8-32 x .375 1
10 712-0142 Nut, Hex, #8-32 ................................ 1
11 712-0429 Nut, Hex Insert Lock, 5/16-18 GR5 .. 2
12 712-3005 Nut, Hex Jam, 3/8-16 GR2 ............... 1
13 717-04183
726-0197
Clutch Assembly, Electric PTO ........
Tie, Clutch Cable ..........................
1
2
14 726-0205 Clamp, Hose .................................... 2
15 736-0148 Washer, Ext. Tooth Lock, 3/8 ........... 2
16 731-04914 Knob, Throttle Control ...................... 1
17 736-0171 Washer, Lock, 7/16 .......................... 1
18 736-0300 Washer, Flat, .406 x .875 x .059 ...... 1
19 736-04131 Washer, Flat, .438 x 1.75 x .25 ........ 1
20 737-04138 Fitting, Hex ....................................... 1
21 746-04066 Cable, Throttle, 34.25 Lg .................. 1
22 746-04214 Cable, Choke, 61Lg .......................... 1
23 747-04228A Wire, Tank Mounting ........................ 1
24 751-10349-22 Hose, Fuel Line ................................ 22in
25 751-0564A Deflector, Muffler .............................. 1
26 751-0616A Muffler .............................................. 1
27 751-10057C Tank, Fuel, 3.0 Gal. .......................... 1
28 751-10355 Pipe, Exhaust RH ............................ 1
29 751-10356 Pipe, Exhaust LH .............................. 1
30 751-3124D Cap, Fuel .......................................... 1
31 751-3140 Drain, Oil .......................................... 1
32 751-3141 Hose, Oil Drain Extension ................ 1
33 751-3142 Cap,.Oil Drain ................................... 1
34 756-0978B Pulley, Drive ..................................... 1
35 KM-11060-7016 Gasket, Muffler ................................. 2
36 KM-317R0800 Nut, Hex ........................................... 4
37 KM-461F0800 Washer, Lock ................................... 4
38 712-0271 Nut, Sems, 1/4-20 ............................ 1
39 726-0154 Tie, Push Mount Cable ..................... 1
40 726-0272 Clamp ............................................... 1
ENGINE CONNECTIONS
-20-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 603-04370 Bracket, Castor Wheel ................... 2
2 603-04385 Axle, Front Pivot ............................ 1
3 634-04321A
734-04255
Wheel Assembly, 13 x 5-6 ............
Tire, 13 x 5-6 .............................
2
2
4 710-04186 Screw, Hex Lock, ..........................
1/2-13 x 1.25 GR5
2
5 710-04652 Screw, Hex Cap, 1/2-20 x 7.25 Gr5 2
6 710-0514 Screw, Hex Cap, 3/8-16 x 1.0 GR5 2
7 711-04228 Shaft, Axle ..................................... 1
8 712-3058 Nut, Hex Insert Lock, 1/2-13 GRB 2
9 731-05500 Bearing, Flange, 1.0 x 1.246 ......... 6
10 736-0169 Washer, Lock, 3/8 ......................... 2
11 736-0227 Washer, Flat, .39 x 1.5 x .134 ....... 2
12 736-0250 Washer, Flat, 1.0 x 1.75 x .10 ...... 2
13 737-3000 Fitting, Lube, 3/16 Drive ................. 3
14 750-04775A Spacer, .51 x .75 x 5.825 .............. 2
15 750-04792 Hub, .76 x 1.23 x .92 ..................... 4
FRONT AXLE
2
1
3
4
5
6
9
10
13
14
15
7
13
8
11
12
4
9
9
15
9
-21-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-11011-7003 Case, Air Filter ............................. 1
2 KM-11013-7009 Element, Air Filter ........................ 1
3 KM-11013-7027 Element, Air Filter ........................ 1
4 KM-16060-7014 Pipe, Intake .................................. 1
5 KM-92015-1193 Nut ............................................... 2
6 KM-92037-2079 Clamp ........................................... 2
7 KM-92055-7005 O-Ring .......................................... 2
8 KM-92191-7006 Tube ............................................. 1
9 KM-92210-7004 Nut ............................................... 2
10 KM-92210-7015 Nut ............................................... 2
11 KM-130B06105 Bolt, Flanged ................................ 3
12 KM-411B0600 Washer, Plain ............................... 1
1
2
3
4
5
9
10
11
12
6
7
8
AIR FILTER
5
6
11
A
A
-22-
7
CYLINDER/CRANKCASE
1
2
3
4
5
6
8
9
10
11
12
13
14
15
17
18
19
20
21
22
23
25
26
24
A
A
1
4
6
15
16
16
16
17
22
23
23
24
-23-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-11004-7006 Gasket, Head ................................... 2
2 KM-11008-7012 Head, Complete- Cylinder #2 ........... 1
3 KM-11008-7013 Head, Complete- Cylinder #1 ........... 1
4 KM-11022-7002 Case, Rocker .................................... 2
5 KM-11060-7012 Gasket, Crankcase Cover ................ 1
6 KM-11060-7013 Gasket, Rocker Case ....................... 2
7 KM-11060-7014 Gasket, Breather .............................. 1
8 KM-13271-7006 Plate ................................................. 1
9 KM-14091-7004 Cover ................................................ 1
10 KM-16126-7001 Valve ................................................ 1
11 KM-49015-7039 Cover, Crankcase ............................. 1
12 KM-49109-7003 Element, Breather ............................ 1
13 KM-49120-7037 Crankcase - Complete ...................... 1
14 KM-59071-2079 Joint .................................................. 1
15 KM-92033-7004 Ring, Snap ........................................ 2
16 KM-92043-7001 Pin .................................................... 6
17 KM-92049-7001 Seal, Oil, RVC2, 6 x 11 x 10.2 .......... 4
18 KM-92049-7005 Seal, Oil, SO 8 x 14 x 5 HS .............. 1
19 KM-92049-7011 Seal, OIl, SD 35 x 62 x 8 L HS ......... 1
20 KM-92049-7014 Seal, Oil, SD 35 x 52 x 7 R HS ......... 1
21 KM-130B0612 Bolt, Flanged .................................... 4
22 KM-130B0640 Bolt, Flanged .................................... 4
23 KM-130T0850 Bolt, Flanged .................................... 18
24 KM-130T0875 Bolt, Flanged .................................... 2
25 KM-172G0818 Bolt, Stud .......................................... 4
26 KM-214B0408 Screw, Pan ....................................... 1
CYLINDER/CRANKCASE
-24-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-13001-7007
KM-13029-7003
Piston, Engine ...................................
Piston, Engine, L 0.50 .......................
2
AR
2 KM-13002-7001 Pin, Piston ......................................... 2
3 KM-13008-6058
KM-13025-7002
Ring Set, Piston ................................
Ring Set, Piston, L 0.50 ....................
2
AR
4 KM-13031-7048 Crankshaft ........................................ 1
5 KM-13251-7005 Rod, Connecting ............................... 2
6 KM-92022-1982 Washer, 12.5 x 32 x 3.2 .................... 1
7 KM-92033-7005 Lock Ring, Piston Pin ........................ 4
8 KM-92038-2101 Key, Flywheel ................................... 1
9 KM-92151-7010 Bolt, 7/16-20UNF .............................. 1
10 KM-92151-7017 Bolt, 6 x 35 ........................................ 4
1
2
4
5
6
7
8
9
10
3
PISTONS AND CRANKSHAFT
1
2
3
5
7
7
7
10
-25-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-12004-7002 Valve, Intake .............................. 2
2 KM-12005-7004 Valve, Exhaust ........................... 2
3 KM-12009-7001 Retainer, Valve Spring ............... 4
4 KM-12011-2056 Collet .......................................... 8
5 KM-12016-7006 Arm, Rocket ............................... 4
6 KM-12032-7001 Tappet ........................................ 4
7 KM-13070-7004 Guide .......................................... 1
8 KM-13070-7007 Guide .......................................... 2
9 KM-13116-7002 Rod, Push .................................. 4
10 KM-13271-7007 Plate ........................................... 1
11 KM-13271-7021 Plate, Governor .......................... 1
12 KM-42036-7009 Sleeve ........................................ 1
13 KM-49078-7002 Spring, Valve .............................. 4
14 KM-49118-7007 Camshaft, Complete .................. 1
15 KM-92009-2341 Screw ......................................... 4
16 KM-92015-2253 Nut ............................................. 4
17 KM-92033-7001 Ring, Snap ................................. 2
18 KM-92140-7002 Ball ............................................. 6
19 KM-92145-7001 Spring ......................................... 1
20 KM-92153-7019 Bolt ............................................. 4
21 KM-92200-7001 Washer ....................................... 1
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
CAMSHAFT AND VALVES
2
3
1
7
8
9
10
11
12
13
14
16
17
18
19
20
21
1
2
3
3
4
4
4
5
5
5
5
6
6
6
8
9
9
13
13
13
15
15
15
15
16
16
16
17
20
20
20
-26-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-13107-7009 Shaft ................................................. 1
2 KM-13271-7005 Plate ................................................. 1
3 KM-14075-7008 Dipstick Assembly ............................ 1
4 KM-16154-7007 Rotor, Pump, (In) .............................. 1
5 KM-16154-7008 Rotor, Pump, (Out) ........................... 1
6 KM-49065-2078 Filter, Oil ........................................... 1
7 KM-49065-7003 Filter, Oil ........................................... 1
8 KM-59051-7011 Gear, Spur ........................................ 1
9 KM-59231-7006 Tube, Dipstick/Oil Fill ........................ 1
10 KM-92043-7003 Pin .................................................... 2
11 KM-92066-7003 Plug .................................................. 2
12 KM-92140-7003 Ball ................................................... 1
13 KM-92145-7002 Spring ............................................... 1
14 KM-130B0612 Bolt, Flanged .................................... 3
15 KM-670D2016 O-Ring, 16mm .................................. 3
LUBRICATION
1
5
6
7
8
9
10
11
12
13
14
2
3
4
11
14
14
15
15
15
-27-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-13270-7007 Plate ...................................... 1
2
KM-14037-70089H
Screen ................................... 1
3 KM-14091-7002 Cover ..................................... 1
4 KM-23062-7005 Bracket .................................. 1
5 KM-49089-7004 Shroud, Engine ...................... 1
6 KM-49089-7005 Shroud, Engine ...................... 1
7 KM-49089-7040 Shroud, Engine ...................... 1
8 KM-59066-7004
KM-56033-7002
KM-56070-7001
Housing, Fan .........................
Label, Maintenance ............
Label, Warnint ....................
1
1
1
9 KM-55020-7007 Guard ..................................... 1
10 KM-59041-7003 Fan ......................................... 1
11 KM-92004-7006 Stud ....................................... 2
12 KM-92026-7007 Spacer ................................... AR
13 KM-92153-7007 Bolt ......................................... 3
14 KM-92153-7008 Bolt ......................................... 1
15 KM-92210-0003 Nut .........................................‘ 4
16 KM-130B0612 Bolt, Flanged .......................... 9
17 KM-130B0816 Bolt, Flanged .......................... 1
18 KM-311B0600 Nut, Hex ................................. 2
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
COOLING
1
5
6
7
8
9
10
11
12
2
4
14
15
3
A
A
13
13
13
17
18
16
16
16
16
16
16
-28-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-21066-7011 Regulator, Voltage ............................ 1
2 KM-21171-7013 Coil, Ignition ...................................... 2
3 KM-21193-7019 Flywheel ............................................ 1
4 KM-26030-7002 Harness ............................................. 1
5 KM-26031-7003 Harness ............................................. 1
6 KM-59031-7001 Coil, Charging ................................... 1
7 KM-92004-7009 Stud ................................................... 2
8 KM-92009-2308 Screw ................................................ 1
9 KM-92066-7002 Plug ................................................... 1
10 KM-BPR4ES Plug, Spark, (NGK), Solid 2
11 KM-92072-7003 Band .................................................. 2
12 KM-92151-2097 Bolt, 12 x 30 ...................................... 1
13 KM-92200-7002 Washer .............................................. 1
14 KM-130B0620 Bolt, Flanged ..................................... 2
15 KM-224B0520 Screw, Pan Hd. ................................. 4
16 KM-311B0600 Nut, Hex ............................................ 2
17 KM-510A5100 Key, Woodruff ................................... 1
18 KM-27010-7002 Switch, Oil Pressure .......................... 1
FLYWHEEL / ELECTRICAL
1
2
3
4
5
6
8
9
10
11
12
14
15
16
17
13
2
7
10
16
18
-29-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-13107-7013 Shaft ............................................. 1
2 KM-13271-7018 Plate ............................................. 1
3 KM-16169-7006 Link, Choke ................................... 1
4 KM-16171-7004 Link ............................................... 1
5 KM-39129-7004 Spring, Governor .......................... 1
6 KM-49103-7004 Arm, Governor .............................. 1
7 KM-49113-7017 Panel, Control ............................... 1
8 KM-92145-7004 Spring ........................................... 1
9 KM-92145-7005 Spring ........................................... 1
10 KM-92145-7034 Spring ........................................... 1
11 KM-92150-2182 Bolt, 5 x 18 .................................... 2
12 KM-92151-7014 Bolt, 5 x 30 .................................... 1
13 KM-92153-7005 Bolt, 6 x 35 .................................... 1
14 KM-92170-7001 Clamp ........................................... 2
15 KM-130B0612 Bolt, Flanged ................................ 2
16 KM-214B0408 Screw, Pan Hd. ............................. 2
17 KM-214B0412 Screw, Pan Hd. ............................. 1
18 KM-311B0600 Nut, Hex ........................................ 1
19 KM-411B0600 Washer, Plain ............................... 1
ENGINE CONTROL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
-30-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-11009-2056 Gasket .................................... 1
2 KM-11060-7009 Gasket, Air Filter ..................... 1
3 KM-11060-7011 Gasket, Manifold ..................... 2
4 KM-11060-7024 Gasket, Carburetor ................. 2
5 KM-11061-7037 Gasket ..................................... 1
6 KM-11061-7038 Gasket ..................................... 1
7 KM-11061-7039 Gasket ..................................... 1
8 KM-14091-7031 Cover ...................................... 1
9 KM-15003-7096 Carburetor Assembly .............. 1
10 KM-16025-7003 Valve, Throttle ......................... 2
11 KM-16030-7004 Valve, Float ............................. 1
12 KM-16031-7003 Float ........................................ 1
13 KM-16041-7021 Shaft, Carburetor .................... 1
14 KM-16041-7023 Shaft, Carburetor .................... 1
15 KM-16073-7005 Insulator .................................. 1
16 KM-16126-7015 Valve, Choke ........................... 1
17 KM-16184-7017 Chamber, Float ....................... 1
18 KM-16187-7002 Needle, Jet .............................. 2
19 KM-21188-7003 Solenoid .................................. 1
20 KM-59076-7002 Manifold, Intake ....................... 1
21 KM-92009-7003 Screw ..................................... 6
22 KM-92009-7004 Screw ..................................... 1
23 KM-92009-7006 Screw, Drain ........................... 1
24 KM-92026-7010 Spacer .................................... 1
25 KM-92043-7014 Pin .......................................... 1
26 KM-92055-7012 O-Ring .................................... 1
27 KM-92055-7013 O-Ring .................................... 2
28 KM-92055-7014 O-Ring .................................... 1
29 KM-92063-7051 Jet, Main, #104 ....................... 1
30 KM-92063-7056 Jet, Main, #102 ....................... 1
31 KM-92066-7009 Plug, Expansion ..................... 2
32 KM-92093-7001 Seal, D = 5.9 .......................... 1
33 KM-92093-7002 Seal, D = 6.9 .......................... 1
34 KM-92145-7010 Spring ..................................... 1
35 KM-92145-7011 Spring ..................................... 1
36 KM-92152-7005 Collar ...................................... 1
37 KM-92172-7005 Screw ..................................... 2
38 KM-92172-7006 Screw ..................................... 3
39 KM-130B0620 Bolt, Flanged .......................... 4
40 KM-172G06105 Bolt, Stud ................................ 2
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CARBURETOR
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
3
4
21
27
40
B
B
B
A
A
-31-
FUEL FILTER/PUMP
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-23062-70049H Bracket ......................................... 1
2 KM-49019-7001 Filter, Fuel .................................... 1
3 KM-49040-7001 Pump, Fuel ................................... 1
4 KM-92170-2088 Clamp ........................................... 4
5 KM-92170-7003 Clamp ........................................... 1
6 KM-92191-7003 Tube. 6.35 x 12.7 x 160 ............... 1
7 KM-92191-7017 Tube ............................................. 1
8 KM-92191-7027 Tube ............................................. 1
9 KM-130B0616 Bolt, Flanged ................................ 2
12 KM-130B0620 Bolt, Flanged ................................ 2
1
2
3
4
5
9
10
6
7
8
4
4
4
-32-
REF.
NO.
PART
NUMBER DESCRIPTION QTY.
1 KM-13101-7003 Gear Assembly ............................. 1
2 KM-21039-7004 Brush ............................................ 1
3 KM-21080-7001 Armature ....................................... 1
4 KM-21163-7010 Starter Assembly .......................... 1
5 KM-39184-7004 Bracket ......................................... 1
6 KM-92151-7013 Bolt ............................................... 1
7 KM-130B0816 Bolt, Flanged ................................ 2
1
2
3
4
5
6
7
STARTER
