Sears 917.25597 - Manual (Page 52)

REPAIR PARTS
18 HP 44" TRACTOR - MODEL NUMBER 917.255970
BRIGGS & STRATTON ENGINE - MODEL NUMBER 422707, TYPE NUMBER 1243-01
KEY PART
NO. NO.
1 494533
2 399265
3 391086
5-1 493457
5-2 493458
7-1 271867
7-2 271868
8-1 398065
8-2 222892
9 27803
10 94382
11 280225
12 271703
271188
271189
13 94565
15 94239
15A 94497
16 394028
94196
18 493304
20 291675
21 399195
22 90887
23 491180
24 222698
25 394955
394956
394957
394958
26 394959
394960
394961
394962
27 260924
28 299691
391286
29 394306
397158
31 220863
32 92909
33 390420
34 261528
35 65906
36 26828
40 221596
41 292260
DESCRIPTION
Cylinder Assembly
Bearing, Cylinder
Seal, Oil
Head, Cylinder Number 1
Head, Cylinder Number 2
* Gasket, Cylinder Head Number 1
* Gasket, Cylinder Head Number 2
Breather Assembly Number 1
Cover, Breather, Cylinder Number 2
(Use with Key Number 572, Air
Baffle with Mounting Holes)
* Gasket, Valve Cover­
Screw, Sems
Tube, Breather
* Gasket, Crankcase Cover 1/64"
* Gasket, Crankcase Cover .005"
* Gasket, Crankcase Cover ,009"
Screw, Cylinder Head
Plug, Oil Drain
Plug, Pipe
Crankshaft
Key, Timing Gear
Base Assembly, Crankcase
Seal, Oil
Seal Assembly, Cylinder Plug
Screw, Sems, Crankcase Cover
Mounting
Uses: 92268 Washer , Lock
Flywheel and Ring Gear Assembly,
Magneto
Key, Flywheel
Piston Assembly, Standard
Piston Assembly .010" Oversize
Piston Assembly ,020" Oversize
Piston Assembly .030" Oversize
Ring Set, Piston, Standard
Ring Set, Piston .010" Oversize
Ring Set, Piston .020" Oversize
Rina Set, Piston ,.030" Oversize
L ock , Piston Pin
Pin Assembly, Piston, Standard
Pin Assy,, Piston .005" Oversize
Rod Assembly, Connecting
Rod Assembly, Connecting,
.020" Undersize Crankpin Bore
Washer
Screw, Connecting Rod
Valve, Exhaust
Valve, Intake
Uses: 393606 Seal Assembly and
Retainer (Key Number 868)
Spring, Intake Valve
Spring, Exhaust Valve
Retainer, Intake Valve
Rotocoil, Exhaust Valve
KEY PART
NO. NO.
42 93630
45 261368
46 213421
50 213290
51 271412
51A 280319
52 270884
53 93970
54 93208
75 222511
78 94326
81 223016
90 495181
91 495035
93 231209
94 491538
95 93499
96 221939
97 392672
98 91920
99 26157
102 271607
103 298514
104 230896
105 394683
107 491543
108 223534
109 392673
116 280474
117 231338
119 94152
120 92290
121 491539
127 223472
161 398826
165 94289
187 299146
188 93535
201 262683
202 262684
203 280997
203A 490207
205 93971
206 94298
207 262337
209 262352
209A 261563
DESCRIPTION
Retainer, Exhaust Valve Rotocoil{2)
Tappet, Valve
Gear, Cam
Manifold, Intake
*** Gasket, Carburetor & intake Elbow
Spacer, Carburetor
* Gasket, Intake Manifold Mounting
Screw, Sems, Carburetor Mounting
Screw, Sems, Intake Manifold Mnt.
Washer, Spring
Screw, Sems
Lock, Muffler Screw
Carburetor Assembly
Body Assembly, Upper Carburetor­
Bushing, Throttle Shaft
** Valve Assembly, Carburetor idle
Screw, Sems, Throttle and Choke
Valve Mounting
Valve, Throttle
Shaft and Lever, Throttle
Screw, Machine, Fillister Head
Spring, Throttle Adjustment
** Gasket, Carburetor Body
Float, Carburetor
** Pin, Float Hinge
Valve, Fuel Inlet
Body, Lower Carburetor
Valve, Choke
Shaft and Lever, Choke
0-Ring
Jet, Needle Valve
Screw, Sems. Hex Head
Washer, Lock
Carburetor Overhaul Kit
Plug, Welch
Body, Air Cleaner
Nut, Wing
Line, Fuel, 28" (Cut to Suit)
Screw, Hex Head
Link. Governor
,
Link, Throttle
Crank, Bell
Crank, Bell
Screw, Shoulder­
Nut; Square
Spring. Compression
Spring. Governor
Spring, Governor Idle
* Included in Gasket Set (491856)
** Included in Carburetor Overhaul Kit (491539)
*** Included in both Gasket Set (491856), and
Carburetor Overhaul Kit (491539)
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
52