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ITEM PART NO. QTY. DESCRIPTION
1 0C5729 1 ASSEMBLY, CRANKCASE HOUSING WITH
SLEEVE
2 0E9843 1 SEAL, 38 I.D. CRANKSHAFT
3 090388 3 SCREW, TAPTITE M6-1.0 X 12 BP
4 0C5372 1 ASSEMBLY, BREATHER
5 0C3005 1 GASKET, BREATHER COVER
6 0E3372B 1 SEPARATOR, OIL BREATHER
7 0D8067A 1 ASSEMBLY, HEAD #1
8 071983 4 RETAINER, PISTON PIN 20
9 0G0693 1 ASSY, ROCKER COVER W/BARB
10 043790A 1 BARBED EL 90 3/8NPT X 3/8 W/ VS
11 0E2950 2 PISTON, LC (GT-990)
0E2985 2 PISTON, HC (GT-760)
12 021533 2 SET, PISTON RING 90MM
13 0E1466 2 PIN PISTON
14 0D4041 1 ASSEMBLY, CAMSHAFT & GEAR
15 0D4788 2 PLUG STD PIPE 3/8 STEEL SQ HD
16 093064 1 ASSEMBLY, OIL FILL CAP
17 0C2977 1 GASKET, CRANK CASE
18 0C5943 1 SEAL, OIL PASSAGE
19 0E4357E 1 ASSEMBLY, CRANKSHAFT HORIZONTAL
DIRECT DRIVE (GT-990)
0E4356E 1 ASSEMBLY, CRANKSHAFT HORIZONTAL
DIRECT DRIVE (GT-760)
20 0E3223 2 ASSEMBLY, CONNECTING ROD (GT-990)
0E3222 2 ASSEMBLY, CONNECTING ROD (GT-760)
21 0D2157 2 SCREW SHC M6-1.0 X 50 G8.8
22 0E6098 1 SCREEN, OIL PICKUP
23 0D4123A 1 ASSEMBLY, OIL PUMP
24 0E8152 1 O-RING, 0.49 ID X 0.07 THICK
25 0C3011 2 COVER, OIL RELIEF
26 0C3009 2 SPRING, OIL RELIEF
27 0C3010 2 BALL, 1/2D OIL RELIEF
28 093873 2 WASHER, LOCK RIB M6
29 0F5458 1 SCREW, PLASTITE HI-LOW #10
30 0C5998 1 CLAMP, OIL TUBE
31 0D4497 1 PLUG-CRANKCASE GOVERNOR BORE
32 0C3971E 1 ASSEMBLY, DIPSTICK WITH HANDLE
33 0D3745 1 TUBE, DIPSTICK
34 0C3027 3 O-RING, OIL CLR
35 0E9842 1 SEAL, 42 I.D. CRANKSHAFT
ITEM PART NO. QTY. DESCRIPTION
36 0C5731 1 ASSEMBLY, HOUSING COVER WITH
SLEEVE
37 0C3006 10 SCREW, HHFC M10-1.5 X 55
38 080318 8 SCREW HHFC M6-1.0 X 25
39 0C8808 2 HOOK, LIFTING
40 0D2723D 1 COVER, ROCKER W/OIL FILL "GENERAC"
TEXT
41 0C2979 2 GASKET, VALVE COVER
42 086515 8 KEEPER, VALVE SPRING
43 0D2274 4 RETAINER, VALVE SPRING
44 0D3867 4 SPRING, VALVE
45 078672 2 SEAL, VALVE STEM D7
46 0C5371 4 WASHER, VALVE SPRING
47 072694 4 STUD, ROCKER ARM PIVOT
48 0C3027 2 O-RING, 3/8" X 1/2"
49 0D5313 4 ROCKER ARM
50 0D3998 4 NUT, HEX M8-1.0 GB YELLOW CHROM
51 0D6024 2 PLATE, PUSH ROD GUIDE
52 0C2976 12 SCREW HHFC M8-1.25 X 65
53 086516 2 VALVE, EXHAUST
54 0C2229 2 VALVE, INTAKE
55 083897 4 TAPPET, SOLID
56 0D8067B 1 ASSEMBLY, HEAD #2
57 0D9853D 4 PUSHROD 147
58 0C2978 2 GASKET, HEAD
59 0D6008 1 KIT GEAR COVER
60 0D4010 1 KIT GASKET
61 0D6007 1 KIT PISTON & RINGS
62 0D4012 1 KIT BREATHER ASSEMBLY
63 0D8675A 1 KIT HEAD ASSEMBLY CYLINDER 1
64 0D8675B 1 KIT HEAD ASSEMBLY CYLINDER 2
65 0D4015 1 KIT OIL RELIEF
Section 9 — Exploded Views and Parts Lists
Commercial-Industrial-Residential Portable Generator System
GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E8589-N
Item 59 (Kit) includes items 3, 30, 35, 65
Item 60 (Kit) includes items 2, 5, 17, 18, 34, 35, 40, 57, 139, 153.
Item 61 (Kit) includes items 8, 11, 12, 13
Item 62 (Kit) includes items 4, 5, 6
Item 63 (Kit) includes items 7, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52,
53, 54, 57, 58
Item 64 (Kit) includes items 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53,
54, 56, 57, 58
Item 65 (Kit) includes items 25, 26, 27