Product specifications

TRACTOR - - MODEL NUMBER 917.270812
BRIGGS & STR,_TTON ENGINE-MODEL NUMBER 42E707, TYPE NUMBER 2631-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 497074 CylinderAssembly 52 270884 * Gasket, Intake Manilold
2 399265 Bushing Moun_ng
3 391086 * Seal, Oil 53 93970 Screw, Hex Head,
4 493304 Sump, Engine Carburetor to Manifold
5 493457 Head, Cylinder#1 54 93208 Screw, Phillips
5A 493458 Head, Cylinder#2 75 222511 Washer, Spring
7 271867 * Gasket, CylinderHead #1 78 95039 Screw,Hex
7A 271868 * Gasket, CylinderHead #2 91 499281 BodyAssembly,Upper
8 495754 BreatherAssembly#1 95 93499 Screw, Seres
8A 222892 Cover,BreatherCylinder#2 96 221939 Valve,Throttle
(Used Only on Key #572, 97 499172 Shaft, Throttle
AirBaffle withHoles for 98 91920 Screw, FillisterHead
Mounting) 99 26157 Spring,Throttle Adjust
9 27803 * Gasket, Breather 102 271607 "* Gasket, Carburetor Body
10 94382 Screw, Sems 103 298514 Roat' Carburetor
10A 94830 Screw, Seres 104 231435 "" Pin, Float Hinge
11 280225 Tube, Breather 105 394682 ** Valve, Needle
12 273208 * Gasket, Crankcase, .015"Thick 107 499655 BodyAssembly,Lower
271188 * Gasket, Crankcase, .005"Thick 108 225373 Valve, Choke
271189 * Gasket, Crankcase, .009"Thick 109 392673 Shaft,Choke
13 94565 Screw, CylinderHead 116 280474 * O-Ring
15 94239 Plug,Oil Drain 117 232018 Jet, Needle Valve, Fixed
16 394028 Crankshaft 232022 Jet, Needle Valve, Fixed,
94196 T_mingGear Key HighAltitude
19 399264 Bushing 119 94152 Screw,HexHead
20 291675 " Seal, Oil 121 491539 CarburetorKit
22 94724 Screw, Seres 125 19306 Carburetor
23 491180 Flywheel 127 223472 ** Plug, Welch
24 222698 Key, Rywheel 147 497684 Jet, Pilot
25 498584 PistonAssembly,Standard Size 161 496599 Base, Air Cleaner
498585 PistonAssembly,.010" 165 94289 Nut, Wing
Oversize 187 299146 Line, Fuel, 28" Long (Cut to
498586 PistonAssembly,.020" Suit)
Oversize 188 94627 Screw
498587 PistonAssembly,.030" 201 262683 Link
Oversize 202 262684 Link
26 394959 Ring Set, Standard Size 203 280997 Crank, Bell
394960 RingSet' .010_Oversize 205 93971 Screw, Hex Head
394961 RingSet, .020" Oversize 206 94298 Nut
394962 RingSet, .030" Oversize 207 262337 Spring, Control, Rod
27 263129 Lock,PistonPin 209 262352 Spring, Governor
28 498319 Pin, Piston,Standard Size 209A 261563 Spring,GovernorIdle
391286 Pin,Piston,.005" Oversize 219 394348 Gear, Governor
29 394306 Rod, Connecting,Standard 219A 393415 Oil Slinger
Size 220 222773 Washer,Thrust
397158 Rod,Connecting,.020" 222 491282 Bracket,Control
Undersize
224 94297 Screw,Torx-
32 94671 Screw,Connecting ROd
33 390420 Valve, Exhaust IncludedinGasket Set (495868)
34 261528 Valve, Intake
35 65906 Spring,Valve, Intake ** Includedin CarburetorKit(491539)
36 26828 Spring,Valve, Exhaust
40 221596 Retainer, Valve, Intake *** Includedin CarburetorKit (491539),
41 292260 Retainer,Valve, Exhaust and Pump Repair Kit(393397)
42 494553 Keeper,Valve
45 261368 Tappet, Valve .... IncludedinGasket Set (495868),
46 214484 Gear, Cam and Carburetor Kit (491539)
50 213290 Manifold,Intake
51 271412 .... Gasket, CarburetorMounting NOTE: All componentdimensionsgivenin U.S. inches
51A 281412 Spacer,Carburetor
56 1 inch = 25.4 mm