CRAFTSMAN
ROTARY
LAWN
MOWER
- - MODEL
NUMBER
917.378404
GEAR
CASE
ASSEMBLY
- - PART NUMBER
185566
7
6
13
10
9
11
12
5
4 5
8
KEY PART
NO. NO.
DESCRIPTION
1
17060410
2
174917
3
57072
4
77881
5
57079
6
174918
7
160817
8
174916
9
160818
10
850848
11
171755
12
12000003
13
183863
14
15
16
Screw, Tapping 1/4-20 x .62
Gear Case, Upper, FWSS
Seal
Bearing
Washer
Drive Shaft, 21" FWGD
Washer, Thrust
Gear Case, Lower, FWSS
Bearing, Needle, Thrust
Key, Hi-pro
Gear, Helical
E-Ring
Shaft, Worm
182225X004
Return Arm
169738X004 Bracket, Transmission
86447
Plug
750369
Grease
185567
Kit, Gearcase Replacement
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
38