ITEM
PART NO.
QTY.
1
0C5729
2
0E9843
3
090388
4
0C5372
5
0C3005
6
0E3372B
7
0D8067A
8
071983
9
0G0693
10
043790
11
0E2950
0E2985
12
021533
13
0E1466
14
0D4041
16
093064
17
0C2977
18
0C5943
19
0E3791E
0E3790E
20
0E3223
0E3222
21
0D2157
22
0E6098
23
0G1536
24
0E8152
25
0C3011
26
0C3009
27
0C3010
28
093873
29
0F5458
30
0C5998
31
0D4497
GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E8589-Y
DESCRIPTION
1
ASSEMBLY, CRANKCASE HOUSING
WITH SLEEVE
1
SEAL, 38 I.D. CRANKSHAFT
3
SCREW, TAPTITE M6-1.0 X 12 BP
1
ASSEMBLY, BREATHER
1
GASKET, BREATHER COVER
1
SEPARATOR, OIL BREATHER
1
ASSEMBLY, HEAD #1
4
RETAINER, PISTON PIN 20
1
ASSY, ROCKER COVER W/BARB
1
BARBED EL 90 3/8NPT X 3/8
2
PISTON, LC (GT-990)
2
PISTON, HC (GT-760)
2
SET, PISTON RING 90MM
2
PIN PISTON
1
ASSEMBLY, CAMSHAFT & GEAR
1
ASSEMBLY, OIL FILL CAP
1
GASKET, CRANK CASE
1
SEAL, OIL PASSAGE
1
ASSEMBLY, CRANKSHAFT
HORIZONTAL DIRECT DRIVE (GT-
990)
1
ASSEMBLY, CRANKSHAFT
HORIZONTAL DIRECT DRIVE (GT-
760)
2
ASSEMBLY, CONNECTING ROD (GT-
990)
2
ASSEMBLY, CONNECTING ROD (GT-
760)
2
SCREW SHC M6-1.0 X 50 G8.8
1
SCREEN, OIL PICKUP
1
ASSEMBLY, OIL PUMP
1
O-RING, 0.49 ID X 0.07 THICK
2
COVER, OIL RELIEF
2
SPRING, OIL RELIEF
2
BALL, 1/2D OIL RELIEF
2
WASHER, LOCK RIB M6
1
SCREW, PLASTITE HI-LOW #10
1
CLAMP, OIL TUBE
1
PLUG-CRANKCASE GOVERNOR
BORE
Section 9 — Exploded Views and Parts Lists
ITEM
PART NO.
32
0C3971E
33
0D3745
34
0C3027
35
0E9842
36
0C5731
37
0C3006
38
080318
39
0G1839
40
0D2723D
41
0C2979
42
086515
43
0D2274
44
0D3867
45
078672
46
0C5371
47
072694
48
0C3027
49
0D5313
50
0D3998
51
0D6024
52
0C2976
53
086516
54
0C2229
55
083897
56
0D8067B
57
0D9853D
58
0C2978
59
0D6008
60
0D4010
61
0D6007
62
0D4012
63
0D8675A
64
0D8675B
65
0D4015
QTY.
DESCRIPTION
1
ASSEMBLY, DIPSTICK WITH
HANDLE
1
TUBE, DIPSTICK
3
O-RING, OIL CLR
1
SEAL, 42 I.D. CRANKSHAFT
1
ASSEMBLY, GEAR COVER W/
SLEEVE
10
SCREW, HHFC M10-1.5 X 55
8
SCREW HHFC M6-1.0 X 25
2
LIFT HOOK, GT990/760
1
COVER, ROCKER W/OIL FILL
"GENERAC" TEXT
2
GASKET, VALVE COVER
8
KEEPER, VALVE SPRING
4
RETAINER, VALVE SPRING
4
SPRING, VALVE
2
SEAL, VALVE STEM D7
4
WASHER, VALVE SPRING
4
STUD, ROCKER ARM PIVOT
2
O-RING, 3/8" X 1/2"
4
ROCKER ARM
4
NUT, HEX M8-1.0 GB YELLOW
CHROM
2
PLATE, PUSH ROD GUIDE
12
SCREW HHFC M8-1.25 X 65
2
VALVE, EXHAUST
2
VALVE, INTAKE
4
TAPPET, SOLID
1
ASSEMBLY, HEAD #2
4
PUSHROD 147
2
GASKET, HEAD
1
KIT GEAR COVER
1
KIT GASKET
1
KIT PISTON & RINGS
1
KIT BREATHER ASSEMBLY
1
KIT HEAD ASSEMBLY CYLINDER 1
1
KIT HEAD ASSEMBLY CYLINDER 2
1
KIT OIL RELIEF
35