Parts Diagram | ## | Part # | Description | Qty | Notes |
| 0438066 | 0438066 | Cylinder & crankcase assembly. not shown 25 models | 1 | |
0438067 | 0438067 | Cylinder & crankcase assembly. not shown 35 models | 1 | |
1 | 0304178 | Dowel pin, main bearing | 3 | |
3 | 0339430 | Screw, crankcase to cylinder, M10 | 6 | |
4 | 0339817 | Screw, crankcase to cylinder, upper, M10 | 2 | |
5 | 0339094 | Elbow, recirculating, upper & lower main | 2 | |
6 | 0303492 | Nipple, pulse | 2 | |
7 | 0340887 | Dowel | 2 | |
8 | 0332406 | Roll pin, lower cover mount | 1 | |
9 | 0337244 | Screw, crankcase, M6 | 12 | |
10 | 0339094 | Elbow, boost port | 3 | |
11 | 0437773 | Check valve, crankcase | 1 | |
12 | 0438569 | Check valve, transfer port | 3 | |
13 | 0436079 | Thermostat assembly | 1 | |
14 | 0436195 | Thermostat | 1 | |
15 | 0339257 | Housing, thermostat | 1 | |
16 | 0301967 | O-ring, thermostat housing. included in powerhead gasket set | 1 | |
17 | 0336179 | Spring | 1 | |
18 | 0437694 | Diaphragm & cup | 1 | |
19 | 0336211 | Spring, relief | 1 | |
20 | 0336185 | Washer | 1 | |
21 | 0308458 | O-ring, thermostat cover. included in powerhead gasket set | 1 | |
22 | 0339256 | Cover, thermostat | 1 | |
23 | 0585023 | Temperature switch | 1 | |
24 | 0329562 | Cover, temperature switch | 1 | |
27 | 0511469 | Terminal, pin | 2 | |
28 | 0513357 | Connector, 2-PIN | 1 | |
29 | 0339167 | Cylinder head. 25 models | 1 | |
29 | 0341563 | Cylinder head. 35 models | 1 | |
30 | 0341961 | Screw, cylinder head, M8 | 12 | |
31 | 0325569 | Tee, recirculating | 1 | |
32 | 0332135 | Plug, pressure tap | 1 | |
33 | 0585997 | Spark plug, Champion, QL86C | 3 | |
34 | 0340891 | Pin, tank bracket | 2 | |
35 | 0341052 | Screw, lower tank bracket, M8 | 1 | |
36 | 0342246 | Heat shield. included in powerhead gasket set | 1 | |
37 | 0341620 | O-ring, cylinder head. included in powerhead gasket set | 3 | |
38 | 0 | Hose, #1 transfer port check valve to boost port elbow, 4 1/2 in. 114MM. cut from 341088 | 1 | |
38 | 0 | Hose, #2 transfer port check valve to #1 boost port elbow, 6 1/2 in. 165MM. cut from 341088 | 1 | |
39 | 0 | Hose, transfer port check valve to tee, 3/4 in. 18MM. cut from 341088 | 1 | |
40 | 0 | Hose, manifold elbow to tee, 3 in. 76MM. cut from 341088 | 1 | |
41 | 0 | Hose, tee to #2 boost port elbow, 5 1/2 in. 140MM. cut from 341088 | 1 | |
42 | 0 | Hose, lower main elbow to upper main elbow, 1 1/2 in. 292MM. cut from 341088 | 1 | |
43 | 0514005 | Bracket, connector, pack & stator. ac models remote models tnt models TEL models | 1 | |
44 | 0341992 | Screw, bracket to block, M5. ac models remote models tnt models TEL models | 2 | |
45 | 0328701 | Lock washer, ground | 1 | |
46 | 0342496 | Throttle stop. rope models ac models | 1 | |
47 | 0341992 | Screw, throttle stop to block, M5. rope models ac models | 2 | |
48 | 0341632 | Sleeve | 1 | |
49 | 0334338 | Spring | 1 | |
50 | 0315164 | Ball | 1 | |
51 | 0339331 | Powerhead base gasket. included in powerhead gasket set | 1 | |
52 | 0325262 | Retaining ring | 1 | |
53 | 0341902 | Tank bracket, upper | 1 | |
54 | 0341036 | Tank bracket, lower | 1 | |
55 | 0305513 | Screw, tank bracket, upper | 1 | |
56 | 0339793 | Grommet, lower | 1 | |
57 | 0176217 | Cap, oil tank | 1 | |
58 | 0333040 | Isolator, upper mount | 1 | |
59 | 0338558 | Spacer, tank mount | 1 | |
60 | 0337147 | Screw, tank to upper bracket, M6 | 1 | |
61 | 0436033 | Oil tank assembly | 1 | |
62 | 0341230 | Sleeve, tank outlet | 1 | |
63 | 0390690 | Filter & elbow, outlet | 1 | |
64 | 0436811 | Oil level sender | 1 | |
65 | 0342745 | Nut | 1 | |
66 | 0342746 | Washer | 1 | |
67 | 0342747 | Grommet | 1 | |
68 | 0511469 | Terminal, pin | 3 | |
69 | 0512748 | Connector, 3-PIN | 1 | |
70 | 0341037 | Bracket, mixing unit | 1 | |
71 | 0512742 | Retainer | 1 | |
72 | 0338562 | Screw, ground, M6 | 1 | |
73 | 0437910 | Powerhead gasket set | 1 | |