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TRACTOR--MODEL
NUMBER
917.25752
ONAN
ENGINE
MODEL
NUMBER
BF-M52666C
4824R-15.2.74
REF.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Cylinder
Block Group
PART NO.
PART DESCRIPTION
11
0-1943
123-1174
123-117 5
123-1173
526-0018
526-0063
526-0122
11
0-1878
110-1879
110-1921
517-0048
520-0424
520-0759
520-0757
104-0776
110-1920
110-1924
110-1925
800-0051
123-1176
REAR
BEARING
KIT
Cylinder
Block
Assembly
Spring
Valve
Boffle
Flat
Washer
(~"
Steel)
Flat
Washer
(~"
Copper)
Flat
Washer
(5/16"
Steel)
Cover
(L.H.)
Cover (R.H.)
Gasket
*Expansion
Plug
Stud
(5/16"
x
2-5;16")
Stud
(5116" x
2-
1/16")
Stud
(~"
x
2-1/16")
*Shim
(.005")
Gasket
Cylinder
Head (R.H.)
Cylinder
Head
(L.H.)
*Hex Cap Screw (3;$-16 x 1
~")
Breather Tube
101-0420 *Standard
101-0420-02
.002"
Undersize
104-0575 *Bearing Thrust Washer
101-0415 *Gasket
101-0407 *Bearing
Plate
(Less Bearing)
101-0367 *Camshaft Bearing (Precision)
509-0041
*Oil
Seal
516-0072
*Stop Pin
110-0445 Hex Nut
(5116-24)
866-0001 Acorn Nut
(~-20)
110-0893 Retainer
115-0006 Tappet
850-0050
*Lock
Washer
(3;$")
120-0706 *Oi I Tube
110-1808 Intake Valve
110-1809
Exhaust Valve
EXHAUST
VALVE
SEAT INSERT
110-0245
Standard
11
0-0245-02
.002"
Overs i
ze
INTAKE
VALVE
SEAT INSERT
110-0197
*Standard
110-0197-02
.002"
Oversize
11
0-1935 *Va Ive Guide
110-0539
Va
Ive Spring
110-0639 Retaining
Lock
FRONT BEARING
KIT
101-0432 *Standard
101-0432-02
.002"
Unders i
ze
806-0027 Hex Head
Cap'
Screw (3;$-16 x %")
526-0066
Flat
Washer
(3;$"
Copper)
110-0068
Gasket (Used with Intake Valve Guide Only)
520-0820
Stud
(3;$-16)
*-Included in Cylinder
Block
Assembly.
-Use
one
only with rear bearing
on
units with flange type front bearing.
-
28
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