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REPAIR PARTS
15 HP 42" TRACTOR - - MODEL NUMBER 917.257643
BRIGGS & STRATTON ENGINE - MODEL NUMBER 28N707, TYPE NUMBER 0160-01
KEY PART KEY PART
NO. NOo DESCRIPTION NO. NO. DESCRIPTION
1 496412 Cylinder Assembly 52 272569
2 399265 Bearing, Cylinder
3 391086 * Seal, Oil 53 94637
5 495858 Head, Cylinder 75 224061
7 272614 *** Gasket, Cylinder Head 78 94832
8 495735 Breather Assembly 95 94098
9 27803 * Gasket, Valve Cover 98 495800
10 94621 Screw, Seres 104 231789
11 281246 Tube, Breather 105 231855
12 271916 * Gasket, Crankcase Cover, .015" t06 231854
271997 * Gasket, Crankcase Cover, .005" 108 224540
271996 *Gasket, Crankcase Cover, .009" 117 231858
13 94728 Screw, Cylinder Head 118 495932
15 94239 Plug, Oil Drain 121 495799
16 495162 Crankshaft 123 94616
94t 96 Timing Gear Key 125 495935
18 494238 Base, Engine 127 - - -
20 291675 -* Seal, Oil 130 224539
22 94624 Screw, Sems, Base Mounting 131 494379
23 492326 Flywheel and Ring Gear Assembly, 133 494381
Magneto 137 281165
24 222698 Key, Flywheel 138 281164
25 495860 Piston Assembly, Standard Size 141 495931
495977 PistonAssembly, .010" Oversize 142 231859
495978 Piston"Assembly, _020",,Oversize 147 231794
495979 PistonAssembly, .030 Oversize 164 214053
26 495854 Ring Set, Piston, Standard Size 166 94555
495852 Ring Set, Piston, .010',iOversize 17t 281051
495851 Ring Set, Piston, ..020 Oversize 187 393815
495855 Ring Set, Piston, .030" Oversize 188 94627
27 260924 Lock, Piston Pin 192 492160
28 29969"1 Pin Assyo, Piston, Standard Size 201 262767
391286 Pin Assy., Piston, .005" Oversize 209 260695
29 494504 Rod Assembly, Connecting 216 262766
495490 Rod Assembly, Connecting, 219 490815
.020" Undersize Crankpin Bore. 222 495611
32 94695 Screw, Hex Washer Head, 1-57/64 224 94729
32A 94648 Screw, Hex Washer Head, 1-5/8 225 231058
33 495856 Valve, Exhaust
34 495857 Valve, Intake
35 262811 Spring, Valve
37 224502 Guard, Flywheel
40 224641 Retainer, Valve Spring
45 262411 Tappet, Valve
46 494433 Gear, Cam
51 272465 **** Gasket, Carburetor (Carburetor to
Elbow) (Also Included in Gasket
Set, Part Number 495993)
*** Gasket, Carburetor
(Elbow to Cylinder) ...... _.
Stud, Carburetor Mounting "
Washer; Spring
Screw, Pan Head
** Screw, Throttle
Screw, idle Speed
** Pin, Float Hinge
** Valve Float
** Seat, inlet Valve
Valve, Choke
** Jet, Needle Valve
Valve, Needle
Carburetor Overhaul Kit
Screw, Elbow Mounting
** Carburetor Assembly
Plug, Welch (Sold in Kit Only)
Valve, Throttte
Shaft and Lever, Throttle
Float, Carburetor
.... Gasket, Float Bowl
**** Washer, Bowl
Shaft and Lever, Choke
** Nozzle, Carburetor-
** Pilot, Jet
Elbow, Carburetor
Stud, Rocker Arm
Nut, Air' Cleaner Mounting
Line, Fuel (11" Long, Cut to Suit)
Screw, Sems
Screw Assembly, Rocker Arm
Link, Governor
Spring, Governor
Link, Choke
Gear', Governor
Plate, Governor Control
Screw, Seres, Air Cleaner
Crank, Governor
* Included in Gasket Set (495993)
** lnciuded in Carburetor Kit (495799)
*** lncluded in both Gasket Set (495993) and
Valve Overhaul Kit (495992)
**** included in Gasket Set (495993), Carburetor Kit
(495799) and Carburetor Gasket Set (494385)
NOTE: AUcomponentdimensions given in U.S. inches
1 inch = 25.4 mm
52