| Manufacturer | Part Numbers |
|---|---|
| BETTS SPRING CO | M673025NTBU |
| FREIGHTLINER/DAIMLER TRK | BTS M673025NTBU, FTG033 03404 |
| KENWORTH | M673025NTBU |
| OTHER | BTS M673025NTBU, BTSM673025NTBU, 033-03404 |
| RYDER FLEET PRODUCTS | T53 03303404, T5303303404 |
| STOUGHTON | FE033-03404 |
| VOLVO-WHITE VENDOR DIRECT | BTSM673025NTBU |
| WORKHORSE PARTS | 033-03404 |