1 | 98-5169 | DOOR - evaporator (upper) | 1 |
| 98-4044 | DOOR - evaporator (upper, M37.7 only) | 1 |
2 | 98-5168 | DOOR - air exchanger | 1 |
| 98-4839 | DOOR - air exchanger (M37.7 only) | 1 |
| 55-2979 | SCREW - door | 20 |
| 55-8822 | SCREW - door (full thread) | 8 |
| 55-2086 | FLATWASHER | 28 |
| 55-1800 | LOCKWASHER | 28 |
3 | 91-6206 | COVER - air exchange | 1 |
| 91-581 | COVER - air exchanger | 1 |
4 | 33-2015 | GASKET - air exchanger | 2 |
5 | 99-6748 | BRACKET - air exchanger | 1 |
6 | 55-4012 | WASHER - special | 1 |
7 | 55-2550 | PIN - cotter | 1 |
8 | 55-5120 | SCREW - wing | 1 |
| 203-397 | ADHESIVE | A/R |
9 | 98-2998 | DUCT - air exchanger | 1 |
10 | 99-7115 | STRIP - gasket (door, 25 ft) | A/R |
11 | 91-5639 | NAMEPLATE - Fresh Air Exchange | 1 |
12 | 33-1712 | GASKET - air exchanger | 1 |
13 | 99-6783 | NAMEPLATE - arrow | 1 |
14 | 91-374 | BRACKET - duct | 1 |
| 55-3049 | SCREW - bracket | 3 |
| 55-2001 | FLATWASHER | 3 |
15 | 99-9251 | STRIP - gasket (duct, 25 ft) | A/R |