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TRACTOR - - MODEL NUMBER 917,274810
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
802 691286 Cap-End
803 693757 Housing-Starter +
830 691095 Stud (Rocker Arm)
842 691031 • SeaI-O Ring (Dipstick Tube) 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
•+ 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)
O 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
51