| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | Brake Compo Box, Bracket | |||
| 2 | Brake Compo Box, Accumulator | |||
| 3 | Brake Compo Box, Accumulator Related Parts | |||
| 4 | Brake Compo Box, Charge Valve (#55479-56425) | |||
| 5 | Brake Compo Box, Charge Valve (#56426-) | |||
| 6 | Brake Compo Box, Charge Valve Related Parts (1/2) | |||
| 7 | Brake Compo Box, Charge Valve Related Parts (2/2) | |||
| 8 | Brake Compo Box, Charge Piping (1/2) | |||
| 9 | Brake Compo Box, Charge Piping (2/2) | |||
| 10 | Brake Compo Box, Shut-off Valve and Brake Piping | |||
| 11 | Brake Compo Box, Wiring Harness | |||
| 12 | Brake Compo Box, Cover |