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TRACTOR - - MODEL NUMBER 917.272420
KOHLER ENGINE-MODEL NUMBER CV492, TYPE NUMBER 27506
CYLtNDER READ/VALVE/BREATHER
CRANKCASE
KEY PART KEY PART
NO. NO. OESCRIPTION NO. NO. DSSCRIP_ON
1 25-351-01-S Lifter valve !2 1 12-032-03-S
2 12-755-94-S Kit, cylindernead ncudes 2
3-17, Gaskets 12 041 01-S
Qty. 2),12 041 02-S, & 12 3 12-445-02-S
041 03-5 4 M-839025-S
3 12-41t-03-S Rod, push (2)
4 12-041-10-S Gasket, cylinder head 5 24-380-13-S
5 12-017-01-S Valve, intake (Std.) 6 12-755-49-S
12-017-02-S Valve, intake .25) 7 12-089-31-S
6 12-015-01-S Valve, exhaust Std.) 8 12-422-08-S
12-016-02-S Valve, exhaust .25) 12-422-09-S
7 25-139-60-S Plug, allen hd. ppe 1/8 12-422-10-S
8 12-318-36-S Cylinder Head 12-422-11-S
9 25-186-01-S Arm, rocker (2) 12-422-12-S
10 12-599-03-S Pivot, rocker arm (2) 12-422-13-S
t f M-640034-S Screw, hex. flange 12-422.07-S
M6xk0x34 (2) 9 12-144-28-S
12 12-089-01-S Spring, valve (2) 10 12-874-07-S
13 12-173o01-S Cap, valve spring (2)
14 12-755-03-S KiL retainer (2) 12-874-11-S
15 12-468o05-S Washer, plain 13/32" 12-874-08-S
16 12-112o13-S Spacer, head bolt exhaust 12-874-09-S
port 11 12 018 02-S
17 12-086-t5-S Screw, hex. f_ange 12 12-t08-07-S
M10x1.5x81 (5) 12-108-05-S
18 25-237-14-S Clamp, hose (2) 12-108-09-S
19 12-326-03-S Hose, breather 13 12-067-11-S
20 M-645020-S Screw, hex, flange 12-067-05-S
M6x1,0x2O (5) 14 12-380-01-S
21 12-096-07-S Cover, valve w/nipple 15 12-043-05-S
22 M-545010-S Screw, hex. flange 16 M-531005-S
M5x0.8x 10 17 12-144-02-S
23 12-018-01-S Retainer, breather reed 18 52-139-09-S
24 12-402-02-S Reed, breather 19 12-755.64-S
20 X-25-102-S
21 12-032°01-S
22 M-631015-S
23 12-154-05-S
Seal, crankshaft
Block, cylinder(Use
Short Block 12 522 49)
Strap, lifting
Screw, hex. flange
Max1.25:<25
Dowel, lOCating (4)
Kit, camshaft (Includes 7,8)
Spring, actuating
Shim, camshaft (A.R.) btue
Shim, camshaft (A.R. red
Shim, camshaft (A.R.) yellow
Shim, camshaft (A.R.) green
Shim, camshaft (A.R.) gray
Shim camshaft (A.R. black
Shim, camshaft (A.R. white
Shaft, batance
Piston w/Ring Set (Std.)
plneludes 11,12)
iston w/Ring Set (.08)
Piston w/Ring Set (.25)
Piston w/Ring Set (.50)
Retainer, piston pin (2)
Ring Set (Std.)
Ring Set .25
Ring Set 1.50{
Connecting Rod }.S2tdi)
Connecting Rod
Pin, governor regulating
Gear, governor
Washer, ptain 5 mm
Shaft, governor gear
Plug, cup
Kit, gov. cross shaftw/clip
Includes 23)
Washer, pan 1/4"
Seal, governor cross shaft
Washer, ptain 6 mm
Clip, hitch pin
NOTE: All component dimensions given in U.S.
inches I inch = 25.4 mm
53