| CEM-0001 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0001-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0002-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0003 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0003-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0004 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0004-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0005 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0005-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0006 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0008 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0009 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0010 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0011 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0011-1K | Kit | Wall Colmonoy Corporation | | 78 | Consumables / Hardware | PMA |
| CEM-0012, CEM-0013 | Muffler | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| CEM-0014 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0015 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0016 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM-0019 | Muffler | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| CEM0002-100 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0023 | Muffler Assy | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| CEM0024 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0024-1 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0024-10 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0024-12 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0025 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0025-11 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0025-12 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CEM0025-13 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| CES0003 | Stack Assembly | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| Group List No. 650-15 dtd 7/2/85, or later FAA approved rev. | Exhaust Stack Assy. 650-15 (L/H), Rev G | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| LS53-173 | Pipe Assembly Front LH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-174 | Pipe Assembly Front RH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-175 | Pipe Assembly Center LH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-176 | Pipe Assembly Center RH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-177 | Pipe Assembly Rear LH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-178 | Pipe Assembly Rear RH | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-261 | Port Engine Exhaust | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-263 | Starboard Engine Exhaust Assembly | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-267 | Exhaust Pipe LH Port Engine | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-269 | Crossover Exhaust Pipe, RH Port Engine | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-271 | Exhaust Pipe, RH Starboard Engine | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| LS53-275 | Crossover Exhaust Pipe, LH Starboard Engine | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| PIM 0007 Group List No PIM 0007 dtd 3/21/86 or later FAA approved revision | Muffler | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| PIM-0003 | Muffler | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| PIM0001 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| PIM0002 | Muffler Assembly | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |
| PIM0004 | Muffler | Wall Colmonoy Corporation | — | 78 | Engine Accessories | PMA |
| PIM0005 | Muffler | Wall Colmonoy Corporation | | 78 | Engine Accessories | PMA |