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TRACTOR - - MODEL NUMBER 917.274031
BRIGGS & STRATTON ENGINE-MODEL NUMBER 407577, TYPE NUMBER 0284-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO, DESCRIPTION
1 699751 Cylinder Assembly 117 698784
2 499585 Kit-Bushing/Seat (Magneto Side) 118 699820
3 391086 • Seal-Oil (Magneto Side) 121 699814
4 699747 Sump-Engine 122 699802
5 693998 Head*Cylinder (Cylinder 1) 125 699807
5A 693999 Head-Cylinder (Cylinder 2) 127 698810
7 690962 °+ Gasket-Cylinder Head 130 699809
8 499601 Breather Assembly 131 699812
9 690937 • Gasket-Breather 133 694914
10 691108 Screw (Breather Assembly) 137 698781 O
t 1 690942 Tube-Breather 141 699811
12 697227 " Gasket-Crankcase 146 690979
13 690360 Screw (Cylinder Head) 165 693148
15 690946 Plug-Oil Drain 187 699799
16 790137 Crankshaft 187A 691049
20 690947 ,, Seal-Oil (PTO Side) 188 691108
22 694966 Screw (Engine Sump) 188A 691003
23 691053 Flywheel 192 690083
24 222698 Key-Flywheel 209 692909
25 499588 Piston Assembly (Sta_ldard) 211 691019
25 499590 Piston Assembly (.020" Oversize) 212 699805
26 499604 Ring Set-Piston (Standard) 213 691021
26 499606 Ring Set-Piston (.020" Oversize) 216 691022
27 690975 Lock-Piston Pin 219 698231
28 690229 Pin-Piston 220 690412
29 ...... Rod-Connecting 222 698761
(See Reference 16) 227 691048
32 690976 Screw (Connecting Rod) 231 690718
33 499596 Valve-Exhaust 240 691035
34 499597 Valve-Intake 250 690957
35 690963 Spring-Valve (intake) 252 690956
36 690963 Spring-Valve (Exhaust) 265 691024
42 499586 Keeper-Valve 267 695134
45 690977 Tappet-Valve 276 695410 O+
46 699748 Camshaft 287 691108
48 698177 Short Block 304 695277
50 699801 Manifold-Intake 305 691005
51 690949 • I_:1: Gasket-Intake 309 497595
51A 699800* Q +_Gasket-lntake 310 690323
51B 699603, _ +:l:Gasket-lntake 311 497608
53 690951 Stud (Carburetor) 332 691059
54 699816 Screw (Intake Manifold) 333 691060
73 499439 Screen-Rotating 334 691061
74 698426 Screw (Rotating Screen) 337 691043
75 691056 Washer (Flywheel) 358 699823
89 690283 Plug-Oil 363 19203
$
+
NOTE:
Jet-Main (Standard)
Jet-Main (High Altitude)
Kit-Carburetor Overhaul
Spacer-Carburetor
Carburetor
Plug-Welch
Valve-Throttle
Kit-Throttle Shaft
Float-Carburetor
Gasket-Float Bowl
Kit-Choke Shaft
Key-Timing
Nut (Ring Gear)
Line-Fuel (Cut to Required Length)
Line-Fuel (Molded)
Screw (Control Bracket)
Screw (Control Bracket)
Adjuster-Rocker Arm
Spring-Governor
Spring-Governed Idle
Link-Throttle
Bracket-ChokeControl
Link-Choke
Gear-Governor
Washer (Governor Lever)
Bracket-Control
Lever-GovernorControl
Screw (ChokeValve)
Filter-Fuel
Retainer-Breather
Collector-Oil
Clamp-Casing
Screw (Casing Clamp)
Washer-Sealing
Screw (DipstickTube)
Housing-Blower
Screw (Blower Housing)
Motor-Startar
Bolt-Starter Motor
Brush Set
Nut (Flywheel)
Armature-Magneto
Screw (Magneto Armature)
Plug-Spark
Set-Engine Gasket
Flywheel Puller
Included in Engine Gasket Set, Key.No. 358
Includedin CarburetorOverhaul Kit, Key.No. 121
Includedin CarburetorGasket Set, Key.No. 977
Includedin Valve Gasket Set, Key.No. 1095
All component dimensionsgiven in U.S.inches
1 inch= 25.4 mm
53