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REPAIR PARTS
GT/18 TWIN-GARDEN TRACTOR--MODEL NO. 917.257061
ONAN ENGINE--MODEL NO . .B48M-GA018/3417A
CRANKSHAFT, FLYWHEEL, CAMSHAFT
AND PISTON GROUP
KEY
PART
DESCRIPTION
NO.
NO
.
1
150·
1519
Hu
b
lA
150-0078
R
in g, Ca
mshaft Center Pin
2
150·1520
Cup, Governor
3
510-0015
Ba
ll
,
Fly
-
Governor
4
104·0779
Gear, Ring - Flywheel
5
134-3506
Flywhee
l (Includes Ring Gear and
Mag
net fl ing)
6
105-0332
Gear
, Camshaft (Includes Flyball
Spacer
a
nd Pl ate)
7
104-0032
Gea
r
,
Crankshaft
8
515-0001
Ke
y
(112"
Dia meter
x 1/8")
9
105-0402
Ca
mshaft (Includes Center Pin)
10
150-0075
Pin
,
Camshaft Center
11
PISTON AND PIN (INCLUDES RE-
TAINING RINGS)
112-0151
Stan
da
rd
112-C151 -05 .005"
Overs ize
112-0151 -10 .010"
Oversi
ze
112-0151 -20 .020"
Oversize
112-0151 ·30 .030"
Overs
ize
112-0151-40 .040"
O versize
12
112-0122
Pin
,
Pis
to
n
13
518-0311
Ri
ng
, Pi st
o
n Pin Retaining
14
ROD ASSEMBLY, CONNECTING
114-0257
Sta
ndard
114-0257-10 .010"
Oversi
ze
114-0257 -20 .020"
Oversi
ze
114-0257-30 .030"
Oversize
15
RING SET, PISTON
113-0189
Standard
113-0189-05 _005"
Oversi
ze
113-0189-10 .010"
Oversize
113-0189-20 .020"
Oversize
113-0189-30 .030"
Oversize
113·0189-40 .040"
Oversize
16
114-0240
Bo
lt, Special
· Connect
ing Rod
17
526-0017
Was
her, Fl at
Stee
l
(15/32"
1.0
. x
1 -
1/4
'0.0
. x
1/4
"
Thi
c
k)
18
870·0 302
Nut
, Loc
king
(5/
16
·
24)
19
850-0055
Was
her, Spring Lock
(7/16")
20
134·3508
G
uard,
F
ly
w hee
l
21
104-0170
Screw,
Hex Head Ca
p
(7/16-14x4")
22
518·0014
Ri
ng
,
Re ta ining -
Crankshaft Gear
Was
her
23
105-0004
Was
her
, Ca
m shaft
Gea
r Th
r
ust
24
104 -0043
Was
he
r,
Crankshaft Gear Retainer
25
104-0996
Cr
an
ksh aft
26
815·0400
Machin
e Scre
w
Truss Head
27
821 -0014
Scre
w,
He
x
Hea
d
Ca
p
- Loc
king
F
la
nge
(511
6
-
18
x
1 Ii')
29
150-1257
Spacer,
Gover nor Flywhee
l
30
150-0077
Pl at
e
,
Go
vern
or
Flyball
31
515·0227
Key
Kit
·
31
-
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