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TRACTOR - - MODEL NUMBER 917.273642
BRIGGS ENGINE-MODEL NUMBER 31P777, TYPE NUMBER 0348-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174 Cylinder Assembly 108 690464
2 399265 Kit-Bushing/Seal (MagnetoSide) 108A 692344
3 391086 • Seal-Oil (Magneto Side) 117 694352
4 697188 Sump-Engine 118 697228
5 698147 Head-Cylinder 121 697241
7 699168 °+ Gasket-Cylinder Head 125 698445
9 697109 • Gasket-Breather 127 695005
11 697113 Tube-Breather 130 691750
12 697110 • Gasket-Crankcase 131 494379
13 690360 Screw (Cylinder Head) 133 494381
15 690946 Plug-Oil Drain 137 281165
16 697127 Crankshaft 141 495097
20 690947 • Seal-Oil (PTO Side)
22 692125 Screw (Crankcase CoverSump) 141A 495931
23 693556 Flywheel
24 222698 Key-Flywheel 142 697140
25 699052 Piston Assembly (Standard) 146 691639
699054 Piston Assembly (.020" 186 698174
Oversize) 187 697098
26 699051 Ring Set (Standard) 187A 698417
697559 Ring Set (.020" Oversize) 188 691693
27 698469 Lock-Piston Pin 192 691986
28 697099 Pin-Piston 202 691841
29 697126 Rod-Connecting (Standard) 209 692208
697263 Rod-Connecting (.020" 216 691840
Undersize) 222 694042
32 692852 Screw (Connecting Rod) 227 691374
33 695760 Valve-Exhaust 232 691842
34 695761 Valve-Intake 238 691843
35 691279 Spring-Valve (Intake) 240 691035
36 691279 Spring-Valve (Exhaust) 265 691024
37 697352 Guard-Flywheel 267 695134
42 691752 Keeper-Valve 276 692255
43 691968 Slinger-Governor/Oil 304 699829
45 690564 Tappet-Valve 305 697102
46 698492 Camshaft 305A 697103
48 697762 Short Block 306 697107
50 690193 Manifold-Intake 307 691003
51 692137 "O:1:+ Gasket-Intake 309 693551
53 690227 Stud (Carburetor) 310 690323
54 691148 Screw (intake Manifold) 311 497608
73 697133 Screen-Rotating 333 492341
74 697897 Screw (Rotating Screen) 334 691061
78 691003 Screw (Flywheel Guard) 337 691043
89 690283 Plug-Oil 356 697089
93 690602 O Bushing-Throttle Shaft 358 697191
94 498030 Kit-Idle Mixture 363 19203
95 691636 Screw (Throttle Valve)
98 495800 Kit-Idle Speed included
104 690525 O Pin-Float Hinge O included
105 231855 O Valve-Float Needle 121
106 691780 O Seat-Inlet _ included
977
+ included
Valve-Choke (Manual Choke)
Valve-Choke (Choke A Matic)
O Jet-Main (Standard)
Jet-Main (High Altitude)
Kit-Carburetor Overhaul
Carburetor
Plug-Welch
Valve-Throttle
Kit-Throttle Shaft
Float-Carburetor
O$ Gasket-Float Bowl
Kit-Choke Shaft (Manual
Choke)
Kit-Choke Shaft (Choke A
Matic)
O Nozzle-Carburetor
Key-Timing
Connector-Hose
Line-Fuel
Line-Fuel
Screw (Control Bracket)
Adjuster-Rocker Arm
Link-Mechanical Governor
Spring-Governor
Link-Choke
Bracket-Control
Lever-Governor Control
Spring-Governor
Cap-Valve
Filter-Fuel
Clamp-Casing
Screw (Casing Clamp)
O$ Washer-Sealing
Housing-Blower
Screw (Blower Housing)
Screw (Blower Housing)
Shield-Cylinder
Screw (Cylinder Shield)
Motor-Starter
Bolt (Starter Motor)
Brush Set
Armature-Magneto
Screw (Magneto Armature)
Plug-Spark
Wire-Stop
Gasket Set-Engine
Flywheel Puller
in Engine Gasket Set, Key. No. 358
in Carburetor Overhaul Kit, Key. No.
in Carburetor Gasket Set, Key. No.
in Valve Gasket Set, Key. No. 1095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
51