Parts ManualParts ManualParts ManualParts Manual
Mfg. No: 44T977-0001-G1
Copyright © Briggs & Stratton. All Rights reserved
04-Sep-2025
Table Of ContentsTable Of ContentsTable Of ContentsTable Of Contents
Model ComponentsModel ComponentsModel ComponentsModel Components PagePagePagePage
Blower Housing, Air Cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Carburetor, Fuel Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cylinder Head, Rocker Arm Cover, Intake Manifold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cylinder, Crankshaft, Camshaft, Air Guides. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Engine Sump, Lubrication, Oil Cooler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Engine/Valve Gasket Set, Carburetor Overhaul Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Flywheel, Controls, Wire Harness, Alternator, Starter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Replacement Engine - US & Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Model 40, 44 & 49 Engine Accessories Catalog. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Maintenance Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Engine Mounted Below Deck Mufflers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Engine Mounted Above Deck Mufflers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Spark Arrester/Deflector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Implement Mounted Above Deck Mufflers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Exhaust/Muffler Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Flywheel Guards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Speed Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Muffler Mounting Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
3 04-Sep-2025
Blower Housing, Air CleanerBlower Housing, Air CleanerBlower Housing, Air CleanerBlower Housing, Air Cleaner
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
4 04-Sep-2025
Blower Housing, Air CleanerBlower Housing, Air CleanerBlower Housing, Air CleanerBlower Housing, Air Cleaner
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
163 691001 GASKET, Air Cleaner
186B 799158 CONNECTOR, Hose
-(EVAP)
186C 845141 CONNECTOR, Hose
-(EVAP)
296 591756 STUD
-(Muffler)
304 799957 HOUSING, Blower
305 594618 SCREW
-(Blower Housing)
305A 557049 SCREW
-(Blower Housing) (Blower Housing To Intake Elbow)
411 698304 SCREW
-(Air Cleaner Base to Air Cleaner Bracket)
431 799097 ELBOW, Intake
445 595536 FILTER, A/C Cartridge
445A 798897 FILTER, A/C Cartridge
467 790697 KNOB, Air Cleaner Cover
496 799095 LEVER, Air Cleaner Filter
613 690341 SCREW
-(Muffler)
875 799094 BASE, Air Cleaner
918A 799160 HOSE, Vacuum
-(Length 9.4 Inches)
929A 794904 SCREW
-(Choke Control Bracket)
964 799159 CAP, Connector
967 593217 FILTER, Pre Cleaner
968 799102 COVER, Air Cleaner
969 799093 SCREW
-(Blower Housing Cover)
997 592782 COVER, Blower Housing
1406 799096 VALVE, Debris
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
5 04-Sep-2025
Carburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel Supply
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
6 04-Sep-2025
Carburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel Supply
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
51 690949 GASKET, Intake
51A 594427 GASKET, Intake
93 845864 BUSHING, Throttle Shaft
95 690718 SCREW
-(Throttle Valve)
98 699721 KIT, Idle Speed
104 694918 PIN, Float Hinge
105 797410 VALVE, Float Needle
108 699723 VALVE, Choke
117 842081 JET, Main
-(Standard) (Standard)
118 699733 JET, Main
-(High Altitude) (High Altitude)
122 593425 SPACER, Carburetor
125 799109 CARBURETOR
130 690993 VALVE, Throttle
131 799113 KIT, Throttle Shaft
133 699724 FLOAT, Carburetor
135 699729 TUBE, Fuel Transfer
137 690994 GASKET, Float Bowl
141 799112 KIT, Choke Shaft
142 796871 NOZZLE, Carburetor
150 841649 GASKET, Nozzle
163 691001 GASKET, Air Cleaner
186B 799158 CONNECTOR, Hose
-(EVAP)
186C 845141 CONNECTOR, Hose
-(EVAP)
187 791766 LINE, Fuel
-(Cut To Required Length)
217 799771 SPRING, Choke Return
231 690718 SCREW
-(Choke Valve)
240 845125 FILTER, Fuel
276 695410 WASHER, Sealing
385 797409 SCREW
-(Fuel Pump)
387 808656 PUMP, Fuel
418 795912 PLATE, Carburetor Cover
601 691038 CLAMP, Hose
-(Black)
633 690722 SEAL, Choke/Throttle Shaft
672 690234 GASKET, Carburetor Plate
918A 799160 HOSE, Vacuum
-(Length 9.4 Inches)
947 596039 SOLENOID, Fuel
964 799159 CAP, Connector
975 799114 BOWL, Float
987 808183 SEAL, Choke/Throttle Shaft
1124 841653 SEAL, O-Ring
-(Fuel Transfer Tube)
1124A 690988 SEAL, O-Ring
-(Fuel Transfer Tube)
1126 690991 SCREW
-(Fuel Transfer Tube)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
7 04-Sep-2025
Carburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel Supply
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
8 04-Sep-2025
Carburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel SupplyCarburetor, Fuel Supply
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
1127 695407 SCREW
-(Float Bowl) (Float Bowl to Carburetor Body)
1128 690990 SCREW
-(Carburetor Nozzle)
1169 690990 SCREW
-(Carburetor Cover Plate)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
9 04-Sep-2025
Cylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake Manifold
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
10 04-Sep-2025
Cylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake Manifold
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
5 799088 HEAD, Cylinder
-(Cylinder #1)
5A 799089 HEAD, Cylinder
-(Cylinder #2)
7 693997 GASKET, Cylinder Head
13 592244 SCREW
-(Cylinder Head)
33 793557 VALVE, Exhaust
34 793556 VALVE, Intake
35 694865 SPRING, Valve
-(Intake)
36 694865 SPRING, Valve
-(Exhaust)
42 499586 KEEPER, Valve
45 690977 TAPPET, Valve
50 797503 MANIFOLD, Intake
51 594427 GASKET, Intake
51A 690949 GASKET, Intake
53 690951 STUD
-(Carburetor)
54 699816 SCREW
-(Intake Manifold)
122 593425 SPACER, Carburetor
163 691001 GASKET, Air Cleaner
192 690083 ADJUSTER. Rocker Arm
213 799510 BRACKET, Choke Control
-(Manual Choke)
296 591756 STUD
-Muffler
337 792015 PLUG, Spark
383 19576S WRENCH, Spark Plug
415 794903 PLUG
635 692076 BOOT, Spark Plug
654 690958 NUT
-(Carburetor)
798 697890 SCREW
-(Rocker Arm)
868 690968 SEAL, Valve
883 690970 GASKET, Exhaust
914 691127 SCREW
-(Rocker Cover)
918 596163 HOSE, Vacuum
-Used Before Code Date 19091800
918 593641 HOSE, Vacuum
-Used After Code Date 19091700
929 691003 SCREW
-(Choke Control Bracket)
929A 794904 SCREW
-(Choke Control Bracket)
1022 690971 GASKET, Rocker Cover
1023 793146 COVER, Rocker
-(Cylinder #1)
1023A 499600 COVER, Rocker
-(Cylinder #2)
1026 690981 ROD, Push
-(Steel)
1026A 690982 ROD, Push
-(Aluminum)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
11 04-Sep-2025
Cylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake Manifold
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
12 04-Sep-2025
Cylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake ManifoldCylinder Head, Rocker Arm Cover, Intake Manifold
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
1029 690972 ARM, Rocker
1029A 807323 ARM, Rocker
1100 791959 PIVOT, Rocker Arm
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
13 04-Sep-2025
Cylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air Guides
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
14 04-Sep-2025
Cylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air Guides
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
1 594970 CYLINDER ASSEMBLY
-Used After Code Date 15071500
1A 594162 CYLINDER ASSEMBLY
-Used Before Code Date 15071600
2 797673 KIT, Bushing/Seal
-(Magneto Side)
3 391086S SEAL, Oil
-(Magneto Side)
8 792185 BREATHER ASSEMBLY
-Used Before Code Date 14082500
9 690937 GASKET, Breather
-Used Before Code Date 14082500
10 691108 SCREW
-(Breather Assembly)
11 594163 TUBE, Breather
-Used After Code Date 14082400
11A 792184 TUBE-BREATHER
-Used Before Code Date 14082500
16 597789 CRANKSHAFT
24 222698S KEY, Flywheel
25 792072 PISTON ASSEMBLY
-(.020" Oversize)
25 792023 PISTON ASSEMBLY
-(Standard)
26 792073 SET, Ring
-(.020" Oversize)
26 792026 SET, Ring
-(Standard)
27 690975 LOCK, Piston Pin
28 696581 PIN, Piston
-(Standard)
29 796209 ROD, Connecting
32 690976 SCREW
-(Connecting Rod)
45 690977 TAPPET, Valve
46 797242 CAMSHAFT
212 695238 LINK, Throttle
227 798856 LEVER, Governor Control
250 690957 RETAINER, Breather
-Used Before Code Date 14082500
252 794389 COLLECTOR-OIL
-Used Before Code Date 14082500
306 796852 SHIELD-CYLINDER
-(Cylinder #1)
306A 591665 SHIELD, Cylinder
-(Cylinder 2)
307 691003 SCREW
-(Cylinder Shield)
307A 691108 SCREW
-(Cylinder Shield)
357 691483 KEY, Drive Pulley
377 690979 KEY, Woodruff
405 594937 SCREW
-(Back Plate)
-Used After Code Date 15071500
405 697820 SCREW
-(Back Plate)
-Used Before Code Date 15071600
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
15 04-Sep-2025
Cylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air Guides
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
16 04-Sep-2025
Cylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air GuidesCylinder, Crankshaft, Camshaft, Air Guides
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
447 691003 SCREW
-(Air Guide Cover)
505 691029 NUT
-(Governor Control Lever)
540 594325 PLATE, Baffle
562 690311 BOLT
-(Governor Control Lever)
573 594902 PLATE, Back
584 594164 COVER, Breather Passage
618 594326 SCREW
-(Baffle Plate)
718 690959 PIN, Locating
718A 594988 PIN, Locating
741 690980 GEAR, Timing
850 100106 SEALANT, Liquid
865 591667 COVER, Air Guide
-(Valley)
1036 ----- Label-Emissions
1263 594166 REED, Breather
1264 594165 SCREW
-(Breather Reed)
1319 794467 LABEL, Warning
1319A 797669 LABEL, Warning
1330 273521 MANUAL, Repair
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
17 04-Sep-2025
Engine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil Cooler
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
18 04-Sep-2025
Engine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil Cooler
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
4 594973 SUMP, Engine
-Used After Code Date 15071500
4A 797502 SUMP, Engine
-Used Before Code Date 15071600
12 594195 GASKET SET, Crankcase
-Used Before Code Date 15071600
15 690946 PLUG, Oil Drain
20 795387 SEAL, Oil
-(PTO Side)
22 694966 SCREW
-(Crankcase Cover/Sump)
186A 796532 CONNECTOR, Hose
-(Oil Drain)
219 793338 GEAR, Governor
220 799772 WASHER
-(Governor Gear)
221 841026 CUP, Governor
239 792028 SWITCH, Oil Pressure
287 697820 SCREW
-(Dipstick Tube)
305 594618 SCREW
-(Blower Housing)
305B 593634 SCREW
-(Blower Housing) (Oil Drain Retainer)
400 796862 COOLER, Oil
404 690442 WASHER
-(Governor Crank)
415 794903 PLUG
448 799103 BRACKET, Oil Cooler
512 594200 HOSE, Oil Drain
517 593633 RETAINER, Oil Drain
523 594528 DIPSTICK
524 691032 SEAL, O-Ring
525 691037 TUBE, Dipstick
552 796638 BUSHING, Governor Crank
552A 690553 BUSHING, Governor Crank
601A 841597 CLAMP, Hose
615 698290 RETAINER, Governor Shaft
616 691045 CRANK, Governor
691 790574 SEAL, Governor Shaft
742 690328 RETAINER, E Ring
750 796208 SCREW
-(Oil Pump Cover)
829 799104 HOSE, Oil Cooler
842 691031 SEAL, O-Ring
-(Dipstick Tube)
847 594609 DIPSTICK/TUBE ASSEMBLY
943 796222 SEAL, O-Ring
-(Oil Pump Cover)
965 796221 COVER, Oil Pump
1013 690954 NIPPLE, Oil Filter
1017 796214 SCREEN, Oil Pump
1024 796220 PUMP, Oil
1027 696854 FILTER, Oil
1028 796864 ADAPTER, Oil Filter
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
19 04-Sep-2025
Engine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil Cooler
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
20 04-Sep-2025
Engine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil CoolerEngine Sump, Lubrication, Oil Cooler
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
1366 799131 DIVERTER, Oil Cooler
1373 695629 SCREW
-(Oil Cooler Bracket)
1373A 799105 SCREW
-(Oil Cooler Bracket)
1374 796863 SEAL, O-Ring
-(Oil Cooler Diverter)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
21 04-Sep-2025
Engine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul Kit
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
22 04-Sep-2025
Engine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul KitEngine/Valve Gasket Set, Carburetor Overhaul Kit
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
3 391086S SEAL, Oil
-(Magneto Side)
7 693997 GASKET, Cylinder Head
9 690937 GASKET, Breather
-Used Before Code Date 14082500
12 594195 GASKET SET, Crankcase
-Used Before Code Date 15071600
20 795387 SEAL, Oil
-(PTO Side)
22 694966 SCREW
-(Crankcase Cover/Sump)
51 690949 GASKET, Intake
51A 594427 GASKET, Intake
93 845864 BUSHING, Throttle Shaft
104 694918 PIN, Float Hinge
105 797410 VALVE, Float Needle
121 799132 KIT, Carburetor Overhaul
122 593425 SPACER, Carburetor
137 690994 GASKET, Float Bowl
150 841649 GASKET, Nozzle
163 691001 GASKET, Air Cleaner
276 695410 WASHER, Sealing
358 799117 GASKET SET, Engine
524 691032 SEAL, O-Ring
633 690722 SEAL, Choke/Throttle Shaft
672 690234 GASKET, Carburetor Plate
691 790574 SEAL, Governor Shaft
842 691031 SEAL, O-Ring
-(Dipstick Tube)
868 690968 SEAL, Valve
883 690970 GASKET, Exhaust
943 796222 SEAL, O-Ring
-(Oil Pump Cover)
987 808183 SEAL, Choke/Throttle Shaft
1022 690971 GASKET, Rocker Cover
1095 694013 GASKET SET, Valve
1124 841653 SEAL, O-Ring
-(Fuel Transfer Tube)
1124A 690988 SEAL, O-Ring
-(Fuel Transfer Tube)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
23 04-Sep-2025
Flywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, Starter
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
24 04-Sep-2025
Flywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, Starter
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
23 594169 FLYWHEEL
73 494439 SCREEN, Rotating
74 698425 SCREW
-(Rotating Screen)
75 691056 WASHER
-(Flywheel)
188 691108 SCREW
-(Control Bracket)
216 691022 LINK, Choke
-(Manual Choke)
222 798916 BRACKET, Control
-(V3 Manual Choke)
265 691024 CLAMP, Casing
267 792629 SCREW
-(Casing Clamp)
309 590476 MOTOR, Starter
318 691127 SCREW
-(Mounting Bracket)
318A 792629 SCREW
-(Mounting Bracket)
332 691059 NUT
-(Flywheel)
333 592846 ARMATURE, Magneto
334 691061 SCREW
-(Magneto Armature)
363 19203 PULLER, Flywheel
474 592829 ALTERNATOR
-(5 or 9 Amp. Tri Circuit, Regulated)
474A 592830 ALTERNATOR
-(10-16 Amp Regulated)
493 797176 BRACKET, Mounting
501 794360 REGULATOR
501A 593490 REGULATOR
526 691108 SCREW
-(Regulator)
537 594919 KIT, Governor/Idle Spring
555 593489 SCREW
-(Starter Solenoid)
563 799360 SCREW
-(Debris Screen Guard)
635 692076 BOOT, Spark Plug
640 796913 WIRE ASSEMBLY
-(Thermistor)
697 591909 SCREW
-(Starter Motor) (Drive Cap)
703 691010 CLIP
729 593826 CLIP, Wire
789A 591392 HARNESS, Wiring
934 593638 SCREW
-(Fan Retainer)
-Used After Code Date 14082400
934 592604 SCREW
-(Fan Retainer)
-Used Before Code Date 14082500
949 799357 GUARD, Debris Screen
949A 593206 GUARD, Debris Screen
1005 593640 FAN, Flywheel
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
25 04-Sep-2025
Flywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, Starter
Mfg. No: 44T977-0001-G1
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
26 04-Sep-2025
Flywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, StarterFlywheel, Controls, Wire Harness, Alternator, Starter
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
1006 798750 RETAINER, Fan
1012 592556 RETAINER, Link
1054 280275 TIE, Cable
1059 698516 KIT, Screw/Washer
-(Alternator)
1119 691183 SCREW
-(Alternator)
1193 592577 SCREW
-(Thermostat)
1436 799108 MOTOR, Stepper/Bracket
1437 699891 SCREW
-(Stepper/Bracket Motor)
1438 796352S MODULE, Electronic Choke
1439 794904 SCREW
-(Thermistor Wire Assembly)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
27 04-Sep-2025
Replacement Engine - US & CanadaReplacement Engine - US & CanadaReplacement Engine - US & CanadaReplacement Engine - US & Canada
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
44T9770011 1 Replacement Engine
797092 1 Replacement Short Block
----- Top No-Load Speed: 3650
-Trim: G1
----- Service Note: Transfer the Governor Spring and Governor Idle Spring to the
replacement engine.
----- Service Note: Transfer Manual Choke Control Assembly from the original engine
to replacement engine.
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
28 04-Sep-2025
Model 40, 44 & 49 EngineModel 40, 44 & 49 EngineModel 40, 44 & 49 EngineModel 40, 44 & 49 Engine
Accessories CatalogAccessories CatalogAccessories CatalogAccessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
04-Sep-2025
Maintenance KitsMaintenance KitsMaintenance KitsMaintenance Kits
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
30 04-Sep-2025
Maintenance KitsMaintenance KitsMaintenance KitsMaintenance Kits
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
9000 84002442 KIT, Maintenance
-(Intek / EXi V-Twin Engines) (Do not use with Home Standby Generators.)
9000A 84002317 KIT, Maintenance
-(Professional Series™ V-Twin Engines) (Do not use with Home Standby
Generators.)
9000B 84002316 KIT, Maintenance
-(Commercial Series V-Twin Engines) (Do not use with Home Standby
Generators.)
9000C 84002318 KIT, Maintenance
-(Oil Guard™ Engines) (Do not use with Home Standby Generators.)
9000D 84002315 KIT, Maintenance
-(Non-Oil Guard™ Engines) (Do not use with Home Standby Generators.)
9000E 84007695 KIT, Maintenance
-Commercial - CXi V-Twin Engines (Do not use with Home Standby Generators.)
240 84001895 1 FILTER, Fuel
-(40 Micron)
240A 845125 1 FILTER, Fuel
-(20 Micron)
337 491055S 2 PLUG, Spark
337A 496018S 2 PLUG, Spark
445 594201 1 FILTER, A/C Cartridge
445A 792105 1 FILTER, A/C Cartridge
445B 798897 1 FILTER, A/C Cartridge
445C 841497 1 FILTER, A/C Cartridge
967 797704 1 FILTER, Pre Cleaner
967A 593217 1 FILTER, Pre Cleaner
1027 492932S 1 FILTER, Oil
-(Standard)
1027A 696854 1 FILTER, Oil
-(Premium)
1027B 842921 1 FILTER, Oil
-(Vanguard®)
1027C 84007094 1 FILTER, Oil
-(Oil Guard™)
1027D 84007055 1 FILTER, Oil
-(Oil Xtend™)
1505 100005 OIL-4 CYCLE 30W 18OZ.
-(18 oz. Bottle)
1505A 100028 OIL-4 CYCLE30W 48OZ
-(48 oz. Bottle)
1505B 100170 OIL-5QT VANGUARD (CASE)
-(5 qt. Bottle)
1505C 100169 OIL-1QT VANGUARD (CASE)
-(1 qt. Bottle)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
31 04-Sep-2025
Engine Mounted Below Deck MufflersEngine Mounted Below Deck MufflersEngine Mounted Below Deck MufflersEngine Mounted Below Deck Mufflers
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
32 04-Sep-2025
Engine Mounted Below Deck MufflersEngine Mounted Below Deck MufflersEngine Mounted Below Deck MufflersEngine Mounted Below Deck Mufflers
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
300 594584 1 KIT-MUFFLER/GUARD
-(Oil Filter Side Outlet) (Engine Supported) (O2 Sensor Port)
300A 593877 1 MUFFLER
-(Starter Side Outlet) (Engine Supported) (O2 Sensor Port)
300B 594583 1 MUFFLER
-(Starter Side Outlet) (Engine Supported) (No O2 Sensor Port)
300C 692120 1 MUFFLER
-(Starter Side Outlet) (No O2 Sensor Port)
415 596859 1 PLUG
-(O2 Sensor Port)
613 690341 4 SCREW
-(Muffler)
613A 690363 4 SCREW
-(Muffler)
883 594365 2 GASKET, Exhaust
883A 690970 2 GASKET, Exhaust
1177 690941 4 NUT
-(Muffler)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
33 04-Sep-2025
Engine Mounted Above Deck MufflersEngine Mounted Above Deck MufflersEngine Mounted Above Deck MufflersEngine Mounted Above Deck Mufflers
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
34 04-Sep-2025
Engine Mounted Above Deck MufflersEngine Mounted Above Deck MufflersEngine Mounted Above Deck MufflersEngine Mounted Above Deck Mufflers
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
300C 595138 1 MUFFLER
-(Oil Filter Side Outlet) (Self-Supporting) (O2 Sensor Port)
300D 595139 1 MUFFLER
-(Starter Side Outlet) (Self-Supporting) (O2 Sensor Port)
415 596859 1 PLUG
-(O2 Sensor Port)
883 594365 2 GASKET, Exhaust
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
35 04-Sep-2025
Spark Arrester/DeflectorSpark Arrester/DeflectorSpark Arrester/DeflectorSpark Arrester/Deflector
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
36 04-Sep-2025
Spark Arrester/DeflectorSpark Arrester/DeflectorSpark Arrester/DeflectorSpark Arrester/Deflector
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
676 593869 1 DEFLECTOR, Muffler
-(For Below Deck Mufflers Only)
994 593885 1 ARRESTOR, Spark
-(For Below Deck Mufflers Only)
994A 593868 1 ARRESTOR, Spark
-(For Below Deck Mufflers Only)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
37 04-Sep-2025
LubricationLubricationLubricationLubrication
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
38 04-Sep-2025
LubricationLubricationLubricationLubrication
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
186 796532 1 CONNECTOR, Hose
-(Threaded Engine Block Connector for EZ-Oil Drain Hose) (Order hose
separate)
239 690233 1 SWITCH, Oil Pressure
-(2-4 PSI Normally-Closed Switch)
239A 491657S 1 SWITCH, Oil Pressure
-(3-5 PSI Normally-Closed Switch)
239B 841281 1 SWITCH, Oil Pressure
-(7-10 PSI Normally-Closed Switch)
239C 694115 1 SWITCH, Oil Pressure
-(9-13 PSI Normally-Closed Switch)
239D 697049 1 SWITCH, Oil Pressure
-(3-6 PSI Normally-Open Switch)
295B 594271 1 ADAPTER, Remote Oil Filter
-(Remote Oil Filter Kit)
512 594200 1 HOSE, Oil Drain
-(EZ-Oil Drain Hose, 10.5") (Order threaded engine block connector separate)
512 593635 1 HOSE, Oil Drain
-(EZ-Oil Drain Hose, 13.75") (Order threaded engine block connector separate)
512B 1723165SM 1 HOSE, Oil Drain, 10-1/2" Long, 3/8-18 Fittings
-(10.5")
512C 5048681SM 1 HOSE, OIL DRAIN
-(12.5")
517 593633 1 RETAINER, Oil Drain
601 841597 4 CLAMP, Hose
1013 690954 1 NIPPLE, Oil Filter
1346 844802 1 VALVE, Oil Drain Shut Off
1346A 492031 1 VALVE, Oil Drain Shut Off
1346B 5401WEB 1 VALVE, Oil Drain Shut Off
-(1/4 Turn Oil Drain Valve with Hose)
1374 796863 1 SEAL, O-Ring
1505 100169 OIL-1QT VANGUARD (CASE)
-(1 qt. Bottle)
1505A 100170 OIL-5QT VANGUARD (CASE)
-(5 qt. Bottle)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
39 04-Sep-2025
Implement Mounted Above Deck MufflersImplement Mounted Above Deck MufflersImplement Mounted Above Deck MufflersImplement Mounted Above Deck Mufflers
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
40 04-Sep-2025
Implement Mounted Above Deck MufflersImplement Mounted Above Deck MufflersImplement Mounted Above Deck MufflersImplement Mounted Above Deck Mufflers
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
300A 594585 1 MUFFLER
-(Oil Filter Side Outlet) (Implement Supported) (O2 Sensor Port)
300B 595134 1 MUFFLER
-(Oil Filter Side Outlet) (O2 Sensor Port)
300C 595135 1 MUFFLER
-(Starter Side Outlet) (O2 Sensor Port)
300D 595136 1 MUFFLER
-(Oil Filter Side Outlet)
264 703465 4 NUT, 5/16-18, GR5
-(Muffler Adapter)
355 5025292SM 4 WASHER, 5/16" GD.9 FL
-(Muffler Bracket)
355A 5025155SM 2 WASHER, 5/16
-(Muffler Bracket)
415 596859 1 PLUG
-(O2 Sensor Port)
437 703585 4 CAPSCREW, 5/16-18X1
-(Exhaust Manifold)
740 703164 2 NUT
-(Muffler Bracket)
740A 703115 2 NUT
-(Muffler Bracket)
819 690341 4 SCREW
-(Muffler Bracket)
863 597480 1 BRACKET, Muffler
883 594365 2 GASKET, Exhaust
883A 690970 2 GASKET, Exhaust
1176 690941 4 NUT
-(Exhaust Manifold)
1317 703116 4 LCKWSHR
-(Exhaust Manifold)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
41 04-Sep-2025
Exhaust/Muffler ConfigurationsExhaust/Muffler ConfigurationsExhaust/Muffler ConfigurationsExhaust/Muffler Configurations
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
42 04-Sep-2025
Exhaust/Muffler ConfigurationsExhaust/Muffler ConfigurationsExhaust/Muffler ConfigurationsExhaust/Muffler Configurations
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
300A 771127 1 MUFFLER
-(Oil Filter Side Outlet)(Commercial & Professional Series)
300B 771128 1 MUFFLER
-(Starter Side Outlet)(Commercial & Professional Series)
300C 595822 1 MUFFLER
-(Starter Side Outlet)(Commercial & Professional Series)
300D 84003680 1 MUFFLER
-(Oil Filter Side Outlet) (Commercial & Professional Series)(Vanguard 810 & 810
EFI) (Compatible with 593868 Spark Arrester, 593885 Spark Arrester with
Deflector.) (Equipped with plug for blocking off O2 sensor port for non EFI
engines.)
437 690341 4 SCREW
-(Exhaust Manifold)
740 704067 2 NUT, HEX FLNG,5/16-18
-(Muffler Bracket)
819 592604 2 SCREW
-(Muffler Bracket)
819A 695629 4 SCREW
-(Muffler Bracket)
819B 692062 2 SCREW
-(Muffler Bracket)
883 594365 2 GASKET, Exhaust
884 691956 1 CLAMP, Muffler
1176 690941 4 NUT
-(Exhaust Manifold)
1177 793859 1 NUT
-(Muffler)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
43 04-Sep-2025
ElectricalElectricalElectricalElectrical
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
44 04-Sep-2025
ElectricalElectricalElectricalElectrical
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
578 84007350 1 WIRE ASSEMBLY
-(Wire Harness Adapter Aids in repowering engine application with Male 6-Pin
connector and wires create custom adapter configurations.)
578A 19631 1 TOOL, CUSTOM HARNESS
-(6-pin Wire Harness Adapter) (Aids in repowering engine application to an EFI
engine)
853 84003359 1 ADAPTER, WIRE
-(Wire Harness Adapter) (Aids in repowering ExMark) (Flat 6-spade connector
to Briggs & Stratton 6-Pin connector)
920 84002147 1 SOLENOID, STARTER
-(Starter Solenoid Kit) (Aids in Repowering when original is solenoid shift)
983 5103809YP 1 LIGHT, Indicator
-(MIL Light Indicator) (LED Red)
1616 19626 1 CODE READER
-(Tiny Scan Code Reader)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
45 04-Sep-2025
Flywheel GuardsFlywheel GuardsFlywheel GuardsFlywheel Guards
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
46 04-Sep-2025
Flywheel GuardsFlywheel GuardsFlywheel GuardsFlywheel Guards
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
563 698425 1 SCREW
-(Debris Screen Guard)
563A 597574 1 SCREW
-(Debris Screen Guard)
563B 799359 1 SCREW
-(Debris Screen Guard)
949 799357 1 GUARD, Debris Screen
-(Static Cover Flywheel) (Requires 4 x 799360 Screw)
949A 797420YP 1 GUARD, Debris Screen
-(Static Cover Flywheel High Flow) (Requires 4 x 799360 Screw)
949B 593206 1 GUARD, Debris Screen
-(Static Cover Flywheel) (Requires 4 x 799359 Screw)
949C 597573 1 GUARD, Debris Screen
-(Wire Static Flywheel Cover) (Requires 4x 597574 Screw) (For Commercial
Series)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
47 04-Sep-2025
Speed ControlSpeed ControlSpeed ControlSpeed Control
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
48 04-Sep-2025
Speed ControlSpeed ControlSpeed ControlSpeed Control
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
265 691024 1 CLAMP, Casing
-(Casing Clamp for Hard Casing)
265A 690798 1 CLAMP, Casing
-(Casing Clamp for Soft Casing)
267 792629 1 SCREW
-(Screw for Casing Clamp)
269 93907 1 WIRE, Control
-(Control Wire 100')
271 691028 1 LEVER, Control
-(Speed Control Lever Assembly)
271A 692105 1 LEVER, Control
-(“L” formed end Speed Control Lever Assembly)
271B 692541 1 LEVER, Control
-(“Z” formed end Speed Control Lever Assembly)
416 595196 1 BRACKET, Throttle Cable
-(Casing Clamp for Snap-In Casing)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
49 04-Sep-2025
Muffler Mounting HardwareMuffler Mounting HardwareMuffler Mounting HardwareMuffler Mounting Hardware
Model 40, 44 & 49 Engine Accessories Catalog
Not For
Reproduction
Copyright © Briggs & Stratton. All Rights reserved
50 04-Sep-2025
Muffler Mounting HardwareMuffler Mounting HardwareMuffler Mounting HardwareMuffler Mounting Hardware
REF NOREF NOREF NOREF NO PART NOPART NOPART NOPART NO QTYQTYQTYQTY DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION
264 703465 4 NUT, 5/16-18, GR5
-(Muffler Adapter)
296 591756 4 STUD
-(Muffler)
355 5025292SM 4 WASHER, 5/16" GD.9 FL
-(Muffler Bracket)
355A 5025155SM 2 WASHER, 5/16
-(Muffler Bracket)
613 690341 4 SCREW
-(Muffler)
613A 690363 4 SCREW
-(Muffler)
863 597480 1 BRACKET, Muffler
883 594365 2 GASKET, Exhaust
883A 690970 2 GASKET, Exhaust
1177 690941 4 NUT
-(Muffler)
Not For Reproduction
Copyright © Briggs & Stratton. All Rights reserved
51 04-Sep-2025
Copyright © Briggs & Stratton. All Rights reserved
04-Sep-2025
