Parts Diagram | ## | Part # | Description | Qty | Notes |
| 1 | 0321921 | O-ring | 1 | |
2 | 0346329 | Sleeve, pressure relief | 1 | |
3 | 0346377 | Spring, pressure relief | 1 | |
4 | 0346336 | Valve, pressure relief | 1 | |
5 | 0335981 | Seal, pressure relief valve | 1 | |
6 | 5000833 | Cap, pressure relief valve | 1 | |
7 | 0348117 | Hose, tee to pressure relief | 1 | |
8 | 0346110 | Housing, thermostat lower | 1 | |
9 | 0346107 | Hose, head to tee, port | 1 | |
10 | 0348118 | Hose, head to tee, starboard | 1 | |
11 | 0346113 | Hose, water supply, starboard | 1 | |
12 | 0346119 | Tee, water supply, starboard | 1 | |
13 | 0350131 | Hose, fitting to head upper | 2 | |
14 | 0350129 | Hose, fitting to head lower | 2 | |
15 | 0350130 | Hose, block to head, port | 1 | |
16 | 0346119 | Tee, water supply, port | 1 | |
17 | 0344031 | Sleeve, protection | 1 | |
18 | 0437090 | Thermostat | 2 | |
19 | 0346533 | Hose, tee to cylinder block, drain. use tie strap p/n 320107 to secure. ref #43 | 1 | |
20 | 0346539 | Tee, thermostat & emm drain | 1 | |
21 | 0347194 | Hose, emm drain. use tie strap p/n 320107 to secure. ref #43 | 1 | |
22 | 0346532 | Hose, tee to tee. use tie strap p/n 320107 to secure. ref #43 | 1 | |
23 | 0346140 | Tee, thermostat drain | 1 | |
24 | 0346536 | Hose, thermostat drain, starboard. use tie strap p/n 320107 to secure. ref #43 | 1 | |
25 | 0334132 | Hose, thermostat drain, port. use tie strap p/n 320107 to secure. ref #43 | 1 | |
26 | 5000832 | Cover, thermostat | 2 | |
27 | 0346534 | Hose, cylinder block vent. use tie strap p/n 317893 to secure. ref #42 | 1 | |
28 | 0331188 | O-ring, thermostat. included in powerhead gasket set | 2 | |
29 | 0337067 | Spring, thermostat | 2 | |
30 | 0339044 | Seal, thermostat upper | 2 | |
31 | 0350135 | Hose, water supply to vapor separator. use tie strap p/n 320107 to secure. ref #43 | 1 | |
32 | 0308743 | Screw, pressure relief cap | 2 | |
33 | 0437090 | Thermostat assembly, lower | 1 | |
34 | 0337207 | Cover, thermostat | 1 | |
35 | 0337194 | Gasket, thermostat cover | 1 | |
36 | 0310058 | Seal, thermostat | 1 | |
37 | 0335778 | Nut, cover to housing | 2 | |
38 | 0909533 | Screw | 2 | |
39 | 0345229 | Hose, lower thermostat drain. use tie strap p/n 320107 to secure. ref #43 | 1 | |
40 | 0173311 | Nipple, 5/16 in. I. d | 2 | |
41 | 0173312 | Nipple, 3/8 in. I. d | 2 | |
42 | 0345109 | Hose, water vapor separator to emm | 1 | |
43 | 0320107 | Tie strap | 16 | |
45 | 0346150 | Clamp 18.5MM | 8 | |
46 | 0346151 | Clamp 21.0MM | 4 | |
47 | 0346152 | Clamp 25.6MM | 4 | |
48 | 0346153 | Clamp 30.1MM | 2 | |