| Competitor Part Number | Competitor Name | Interchange Type | Notes |
|---|---|---|---|
| CUM550666 | CUMMINS | Direct Replacement | |
| 550666 | CUMMINS | Direct Replacement | |
| 550666RX | CUMMINS | Direct Replacement | |
| 550666PX | CUMMINS | Direct Replacement | |
| 550666NX | CUMMINS | Direct Replacement | |
| 550666-1 | CUMMINS | Direct Replacement |