18 hp 44" tractor - model number 917.257720, Repair parts, Transaxle – Sears Craftsman 917.257720 User Manual
Page 47
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REPAIR PARTS
18 HP 44" TRACTOR - MODEL NUMBER 917.257720
TRANSAXLE
,
'
KEY PART
N O . N O .
1
4197R
2
12000034
3
4199R
4
4216R
5
4215R
6
4217R
7
6256H
8
74020652
9
7392M
10
137261
11
4985R
12
6266H
13
4212R
14
137125
15
6276H
16
633A63
17
8118M
18
8740H1
19
122238X
20
4218R
21
6252H1
22
781 OH
23
6262H
24
7393R
25
992R1
26
139111
27
4986R
28
122254X
29
6269H
30
5855H
31
139538
32
6277H
33
4225R
34
7396H
35
4198R
36
4200R
37
7395H
39
139536
40
13320400
41
17580520
45
6271H
46
13060200
49
4895H
50
4222R
51
1529R
D ES CR IP TIO N
Axle Shaft
Retaining Ring
Final Drive Gear
Differential Gear
Differential Pinion
Differential Carrier
Axle Thrust Washer
Bolt, Hex Head 3/8-24 x 3-1/4
(1" Thread Length)
Steel Ball ■
Spring Shift Fork Detent
Shift Fork, High-Low Range
Thrust Bearing Race
4th Reduction Pinion
Shaft, Brake
Snap Ring, Crescent Type
High-Low Range Gears
Needle Bearing
Sintered Iron Bearing
Shift Fork Shaft,
H igh-Low
Range
Differential Pinion Spacer
Differential Pinion Bushing
Gripco Centerlock
N ut
3/8-24
Shift Fork, R.H.
Oil Seal
Sintered Iron Bearing
Shift Fork Shaft
Shift Fork, L.H.
Shift Shaft, High-Low Range
Oil Seal
Pressure Relief Valve
Gearcase, Reverse Idler Shaft and
Bearings, R.H. (Includes Key No.’s
17,18, 25, 33, 50, 63, 77 and 82)
Dowel Pin
Needle Bearing
Thrust Bearing Race
4th Reduction Gear Shaft
4th Reduction Gear Spacer
Thrust Bearing Race
Gearcase and Bearings, L.H.
(Includes Key Numbers 18, 25, 49,
50 (2), 51 and 52)
Pipe Plug 1/2-14 N.P.T.
Bolt, Hex 5/16-18 UNC x 1-1/4
Oil Seal .
Pipe Plug 1/4-18 N.P.T.
Needle
Bearing
Needle
Bearing
Needle Bearing
KEY PART
NO.
NO.
52
8119M
53
4220R
54
4209R
55
4213R
56
4442R
57
4195R
58
4214R
59
4194R
60
7528R
61
4208R
62
4207R
63
7398H
64
4203R
65
4204R
66
2898J
67
12000033
68
4205R
69
4206R
70
1370H
71
633A69
72
139120
73
4201R
74
12000008
75
1153R
77
6803J
79
1167R
80
73360700
81
6270H
82
136984
84
5384J
85
2978J
86
633A85
87
8739H1
88
4924H
89
19151516
90
110542X
91
19181511
92
75J
93
6274H
94
76020412
95
10040500
96
74760514
97
633A109
98
139535
DESCRIPTION
Needle Bearing
Thrust Bearing Race
3rd Reduction Pinion, Low
4th Reduction Gear
3rd Reduction Pinion Spacer
2nd Reduction Gear Shaft
Final Drive Pinion
1st Reduction Gear Shaft
1st Reduction Shaft Spacer
3rd Reduction Pinion High
2nd Reduction Gear
Needle Bearing
,
Low Speed Gear and 2nd
Reduction Pinion Cluster
Reverse Gear
Key, Hi-Pro 1/8
X
17/32
Klip Ring
Intermediate Speed Gear
High Speed Gear
Thrust Bearing Race
Intermediate and High Speed
Cluster Pinions
Input Shaft
Low Speed Pinion
E-Ring
Reverse Idler Gear
Needle Bearing
Sealing Washer
Nut, Hex, Jam 7/16-20
Oil Seal
Reverse Idler Shaft
Gearshift Lever, Bent
Gearshift Cap
Gearshift Ball Cover and Pin
Shift Lever Guide Ball, Keyed
Spring
Washer 15/32 x 15/16 x 16 Gauge
Shift Mechanism Seal
Washer 9 / 1 6 x 1 5 / 1 6 x 1 2 Gauge
Gearshift Gate and Reinforcement
Shift Bail Cover Gasket
Cotter Pin 1/8 x 3/4
Washer, Lock 5/16
Bolt, Hex Head 5/16-18 UNC x 7/8
Gearshift Lever Assembly
Transaxle Assembly
(Less Brake Drum and Shift Lever)
NOTE:
All component dimensions given in U.S. inches
1 inch = 25.4 mm
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