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TRACTOR
- - MODEL
NUMBER
917.274820
BRIGGS & STRATTON ENGINE-MODEL
NUMBER 31P777, TYPE NUMBER 0378-E1
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
337
691043
Plug-Spark
868
690968
358
697191
Gasket Set-Engine
914
691108
363
19203
Flywheel Puller
943
690589
383
89838
Wrench-Spark
Plug
947
694393
404
691691
Washer (Governor Crank)
965
499613
431
697122
Elbow-Intake
967
697015
445
697153
Filter-Air Cleaner Cartridge
968
699848
462
691261
Washer (Starter Cable)
975
495933
474
696459
Alternator
977
690192
503
691532
Strap-Starter
987
691326
505
691251
Nut (Governor Control Lever)
1005
699043
510
693699
Drive-Starter
1017
690770
513
692024
Clutch-Drive
1019
697143
523
699908
Dipstick
1022
272475
524
691032 •
Seal-Dipstick Tube
1023
692492
525
697085
Tube-Dipstick
1024
499054
544
692034
Starter-Armature
1026
692003
552
697144
Bushing-Governor
Crank
......
692011
562
691119
Bolt (Governor Control Lever)
1027
696854
579
691029
Nut (Starter Cable)
1029
691751
584
697112
Cover-Breather Passage
1034
690822
601
95162
Clamp-Hose
1035
693784
614
691620
Pin-Cotter
1036
790464
616
692012
Crank-Governor
1040
699852
617
692138 O •
SeaI-O Ring (Intake Manifold)
1044
698139
634
690801 O
Spring/Seal Assembly
1051
691265
(Manual Choke)
1058
275935
634A
690802 O
Spring/Seal Assembly
1059
698516
(Choke A Matic)
1070
691058
635
691909
Boot-Spark Plug
1090
691293
643
698401
Retainer-Air Filter
1091
691333
654
690958
Nut (Carburetor)
1095
690190
684
697157
Screw
1119
691183
(Breather Passage Cover)
1127
691657
691
692407 •
Seal-Governor Shaft
1263
697124
697
690372
Screw (Drive Cap)
1264
697104
718
690959
Pin-Locating
1266
691917
729
691224
Clip-Wire
1266A
697123
741
697128
Gear-Timing
1267
697424
750
691033
Screw (Oil Pump Cover)
1270
697156
757
697607
Link-Counterweight
1329
758
697134
Counterweight
1330
759
697392
Pin-Counterweight
783
693713
Gear-Pinion
•
789
698329
Harness-Wiring
O
797
693167
Nut (Brush Retainer)
801
691283
Cap-Drive
:1:
802
691286
Cap-End
803
693757
Housing-Starter
+
830
691095
Stud (Rocker Arm)
842
691031 •
SeaI-O Ring (DipstickTube)
NOTE:
847
790442
Dipstick/Tube Assembly
851
692424
Terminal-Spark Plug
• +
Seal-Valve
Screw (Rocker Cover)
•
SeaI-O Ring (Oil Pump Cover)
Solenoid-Fuel
Cover-Oil Pump
Filter-Pre Cleaner
Cover-Air Cleaner
Bowl-Float
Gasket Set-Carburetor
O
Seal-Throttle Shaft
Fan-Flywheel
Screen-Oil Pump
Kit-Label
o+
Gasket-Rocker Cover
Cover-Rocker Arm
Pump-Oil
Rod-Push (Intake)
Rod-Push (Exhaust)
Filter-Oil
Arm-Rocker
Guide-Push Rod
Shaft-Pump
Label-Emission
Plate-Trim
Screw (Flywheel)
Ring-Retaining
Owner's Manual
Kit-Screw/Washer
Screw (Flywheel Fan)
Retainer-Brush
Cap-Limiter
Gasket Set-Valve
Screw (Alternator)
Screw (Float Bowl)
Reed-Breather
Screw (Breather Reed)
• O
SeaI-O Ring (Intake Elbow)
G
SeaI-O Ring (Intake Elbow)
Latch-Blower Housing
Plug-AVS Counterweight
31Q777-0036 Replacement Engine
272147
Repair Manual
Included in Engine Gasket Set, Key. No. 358
Included in Carburetor Overhaul Kit, Key. No.
121
Included in Carburetor Gasket Set, Key. No.
977
Included in Valve Gasket Set, Key. No. 1095
All component dimensions given in U.S. inches
1 inch = 25.4 mm
53
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