Generac
®
Power Systems, Inc. 41
ITEM PART NO. QTY. DESCRIPTION
1 0C5729 1 ASSEMBLY, CRANKCASE HOUSING WITH
SLEEVE
20C3008 1 SEAL, 38 I.D. CRANKSHAFT
3 090388 4 SCREW, TAPTITE M6-1.0 X 12 YC
4 0C5372 1 ASSEMBLY, BREATHER
50C3005 1 GASKET, BREATHER COVER
60E3372B 3SEPARATOR, OIL BREATHER
7 0D8067A 1 ASSEMBLY, HEAD #1 G&S
8 071983 4 RETAINER, PISTON PIN 20
9 0C2981C 1 ROCKER, COVER NO OIL FILL
10 045761A 4 STUD M8-1.25/10MM X 30 G5 ZINC
11 0E2985 2 PISTON, HC
12 021533 2 SET, PISTON RING 90MM
13 0E1466 2 PIN PISTON
14 0D4041 1 ASSEMBLY, CAMSHAFT & GEAR
15 0C2983 1 SHAFT, GOVERNOR
16A
0C2985A 2 ROLLER BEARING, GOVERNOR PLATE
16B 0C2985B 1 ROLLER BEARING, GOVERNOR
17 0D4042 1 ASSEMBLY,GOVERNOR GEAR
18 0A7811 1 SPOOL, GOVERNOR MACHINED
19 0C2977 1 GASKET, CRANK CASE
20 0C5943 1 SEAL, OIL PASSAGE
21 0E4357E 1 ASSEMBLY, CRANKSHAFT HORIZONTAL
DIRECT DR
IVE
22 0E3223 2 ASSEMBLY, CONNECTING ROD
23 0D2157 2 SCREW SHC M6-1.0 X 50 G8.8
24 0E60981SCREEN, OIL PICKUP
25 0D4123A 1 ASSEMBLY, OIL PUMP
26 078699E2SLEEVE, SEAMED DOWEL 10 DIA.
27 0C3011 2 COVER, OIL RELIEF
28 0C3009 2 SPRING, OIL RELIEF
29 0C3010 2 BALL, 1/2D OIL RELIEF
30093873 2 WASHER, LOCK RIB
M6
31 0C5315 1 GEROTOR, OUTER
32 0C59981CLAMP, OIL TUBE
33 0D1667 1 ARM, GOVERNOR
34 0C29912E-RING, GOVERNOR ARM
35 0C2988 1 THRUST WASHER, GOVERNOR
36 0C29921BUSHING, GOVERNOR LOWER
ITEM PART NO. QTY. DESCRIPTION
370C3971C 1 ASSEMBLY, DIPSTICK WITH HANDLE
38 0C5305 1 TUBE, DIPSTICK
39 0C3027 1 O-RING, OIL CLR 3/8 X 1/2
40 0C3007 1 SEAL, 42 I.D. CRANKSHAFT
41 0C57311ASSEMBLY, HOUSING COVER WITH
SLEEVE
42 0C3006 9SCREW, HHFC M10-1.5 X 55
43 080318 8 SCREW HHFC M6-1.0 X 25
44 093064 1 ASSEMBLY, OIL FILL CAP
45 0C8808 2 HOOK, LIFTING
46 0D2723B1
ROCKER, COVER WITH OIL FILL
47 0C2979 2GASKET, VALVE COVER
48 086515 8 KEEPER, VALVE SPRING
49 0D2274 4 RETAINER, VALVE SPRING
50 0D3867 4 SPRING, VALVE
51 078672 2 SEAL, VALVE STEM D7
52 0C5371 4 WASHER, VALVE SPRING
53 0726944STUD, ROCKER ARM PIVOT
54 0D399
84NUT HEX M8-1.0 G8 YEL CHR
55 0C3027 2 O-RING, 3/8" X 1/2"
56 0D5313 4 ROCKER ARM
57 0D6024 2 PLATE, PUSH ROD GUIDE
58 0C2976 12 SCREW HHFC M8-1.25 X 65
59 086516 2 VALVE, EXHAUST
60 0C2229 2VALVE, INTAKE
61 0838974TAPPET, SOLID
62 0D8067B 1 ASSEMBLY, HEAD #2 G&S
63 0D9853D4PUSHROD, 147
64 0C2978 2 GASKET, HEAD
65 043
790A 1BARBED ELBOW 90 3/8NPT X 3/8
L0CKTITE
66 0D4010 1 KIT GASKET
67 0D4011 1 KIT PISTON & RINGS
68 0D4012 1 KIT BREATHER ASSEMBLY
69 0D4013 1 KIT GOVERNOR ASSEMBLY
70 0D8675A 1 KIT HEAD ASSEMBLY CYLINDER 1
71 0D8675B 1 KIT HEAD ASSEMBLY CYLINDER 2
72 0D4015 1 KIT OIL RELIEF
73 0D4016 1 KIT GEAR COVER
Section 7 — Exploded Views and Parts Lists
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
GT-990 Engine – Drawing No. 0E8774-B Part 1