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REPAIR PARTS
12 HP 38" RIDING LAWN TRACTOR - - MODEL NUMBER 917.254530
ENGINE BRIGGS & STRATTON - MODEL NUMBER 281707, TYPE NUMBER 04'12-01
KEY PART DESCRIPTION KEY PART DESCRIPTION
NO. NO. NO. NO.
4
5
6
7
8
9
10
11
12
13
14
15
!6
!7
18
!9
2O
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
93158
93163
399265
391086
490450
261463
210940
261961
231597
27803
391406
280100
93394
491490
9416O
262243
490466
222698
262135
262247
65906
221596
262246
26828
93630
292260
212897
802592
66538
89838
93723
222299
92909
490348
260924
299691
391286
Screw, Blower Housing Mounting 37 394665
Sere 391781
Screw, Cylinder Shield Mtg. Sere 391782
Bead ng, Cylinder 391783
Note: Requires special tools for 38 394661
installation 394662
Seal, Oil 394663
Cylinder Assembly 394664
Seat, Intake Valve (Standard) Piston Ring Sets
Seat, Exhaust Valve (Standard)
Guide, Exhaust Valve
Note: 231218 Guide- Intake Valve 39 271916
(Brass)
Bushing, Governor Crank (1/4" 1D) 40 94305
Gasket, Valve Cover 41 91084
Breather Assembly 42 291675
Tube, Breather 43 490452
Screw, Sem 44 490927
Cover, Cylinder Head
Pin, Eccentric 45 92613
Eccentric 46 231082
Crankshaft 47 491323
Note: Order Part Number 94196 for 48 93307
Timing Gear 49 93306
Key, Flywheel 50 231058
Gear, Timing 5t 222450
Valve, Intake 52 212359
Spring, Intake Valve 53 93875
Retainer, Intake Valve 54 298909
Valve, Exhaust 55 399891
Spring, Exhaust Valve 56 490815
Retainer, Exhaust Valve Rotocoil 57 398525
(2) 58 92791
Rotocoil, Exhaust Valve 59 93722
Gear, Cam 60 90576
Plug, Spark (1 1/2" high- 37-42 61 26157
mm) 62 90200
Elbow, Spark Plug 63 93572
Wrench, Spark Plug 64 260695
Screw, Cylinder Head (3" long) 65 390784
Lock, Connecting Rod Screw
Screw, Connecting Rod 66 221535
Rod Assembly, Connecting 67 93496
Note: For Connecting Rod with 68 260584
,020" undersize Crankpin Bore- 69 262348
Order No, 490469 70 223715
Lock, Piston Pin 71 271866
Pin Assembly, Piston _ Standard 72 262248
Pin Assembly, Piston .005 O.S. 73 491491
Ring Set, Piston - Standard
Ring Set, Piston - .010" OrS.
Ring Set, Piston - .020" O.S.
Ring Set, Piston - .030" O.S
Piston Assembly Standard
Piston Assembly - .0t00.S.
Piston Assembly - .020" O.So
Piston Assembly - .030" O,So
Note: For Chrome Ring Set -
Standard size - Order No. 392331
Gasket, Crankcase Cover (1/64"
thick)
Screw, Base Mounting Sem
Plug, Oil Drain
Seal, Oil
Base, Engine
Lever Assembly, Governor (For t/4"
dia, Crank)
Bolt, Governor Lever
Nut, Hex 10 - 24
Seat, Oil
Retainer, E-Ring
Cotter, Hairpin
Crank, Governor (1!4" dia.)
Washer, Governor Crank (t/4" dia.)
Link, Counterweight
Screw, Counterweight (1)
Pin, Counterweight (1)
Counterweight Assembly
Oil Slinger, Governor
Insulator Assembly
Washer, Lock, Shake-proof
Terminal, Spade
Nut, Hex 8 - 32
Spring, Throttle Adjustment
Screw, Machine Fil H& 8 - 32 x t/2
Screw, Carburetor
Spring, Governor
Plate, Governor Control (Choke-A-
Matic)
Clamp, Casing
Screw, Sern
Spring, Governor Link
Link, Governor
Shield, Cylinder
Gasket, Cylinder Head
Tappet Valve
Head, Cylinder
45
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