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REPAIR PARTS
TRACTOR - - MODEL NUMBER 917.258524
BRIGGS & STRATTON ENGINE - MODEL NUMBER 28N707, TYPE NUMBER 0173-01
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 496412
2 399265
3 391086
5 495858
7 272614
8 495735
9 27803
10 94621
1t 281246
12 271916
271997
271996
13 94728
15 94239
16 495162
94196
t8 494238
20 291675
22 94624
23 492326
24
25
26
27
28
29
32
32A
33
34
35
37
40
45
46
51
52
53
75
78
222698
495860
495977
495978
495979
495854
495852
495851
495855
260924
299691
391286
494504
495490
94695
94648
495856
495857
262811
224502
224641
262411
496884
272465
272569
94637
224061
94832
Cylinder Assembly 95
Bearing, Cylinder 98
* Seal, Oil 104
Head, Cylinder 105
*** Gasket, Cylinder Head 106
Breather Assembly 108
* Gasket, Valve Cover 117
Screw, Sems 118
Tube, Breather 12t
* Gasket, Crankcase Cover, o015" 123
* Gasket, Crankcase Cover, _005" 125
* Gasket, Crankcase Cover, _009" 127
Screw, Cylinder Head 130
Plug, Oil Drain 131
Crankshaft 133
Timing Gear Key 137
Base, Engine t38
* Seal, Oil 141
Screw, Sems, Base Mounting 142
Flywheel and Ring Gear Assembly, 147
Magneto 164
Key, Flywheel 166
Piston Assembly, Standard Size 171
Piston Assembly, _010"Oversize 187
Piston Assembly, .020" Oversize 188
Piston Assembly, .030" Oversize 192
Ring Set, Piston, Standard Size 201
Ring Set, Piston, .010" Oversize 209
Ring Set, Piston, .020" Oversize 2t6
ing Set, Piston, ..030" Oversize 219
Lock, Piston Pin 222
Pin Assy. Piston, Standard Size 224
Pin Assyo, Piston, .005" Oversize 225
Rod Assembly, Connecting 227
Rod Assembly, Connecting, 230
.020" Undersize Crankpin Bore 232
Screw, Hex Washer' Head, 1-57/64 238
Screw, Hex Washer Head, 1-5/8 240
Valve, Exhaust 265
Valve, Intake 284
Spring, Valve
Guard, Flywheel
Retainer, Valve Spring
Tappet, Valve
Gear, Cam
**** 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
94098
495800
231789
231855
231854
224540
231858
495932
498116
94616
498051
224539
494379
494381
281165
281164
495931
231859
497472
214047
94555
281051
393815
94627
492160
262767
260695
262766
490815
495611
94729
495157
493935
94742
262785
262836
394358
221535
94704
11.*
it*
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, Throttle
Shaft and Lever, Throttle
Float, Carburetor
Gasket, Float Bowl
Washer, Bowl
Shaft and Lever, Choke
No_le, 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, Sems, Air Cleaner
Crank, Governor
Lever Assembly, Governor'
Washer', Governor Crank
Spring, Governor Link
Cap, Valve
Filter, Fuel (In Fuel Line)
Clamp, Casing
Screw, Hex Head
* Included in Gasket Set (495993)
** Includedin Carburetor Kit (497535)
*** Included in both Gasket Set (495993) and
Valve Overhaul Kit (495992)
**** Included in Gasket Set (495993), Carburetor Kit
(497535) and Carburetor Gasket Set (494385)
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
52