| Competitor Part Number | Competitor Name | Interchange Type | Notes |
|---|---|---|---|
| 171821 | PAI INDUSTRIES | Direct Replacement | |
| PAI171821 | PAI INDUSTRIES | Direct Replacement | |
| 3945917 | CUMMINS | Direct Replacement | |
| 171821HP | PAI INDUSTRIES | Direct Replacement | |
| PAI171821HP | PAI INDUSTRIES | Direct Replacement | |
| 3945917 | PAI INDUSTRIES | Direct Replacement | |
| AFA-A3945917 | AFA PRODUCTS | Direct Replacement | |
| M-3945917 | INTERSTATE MC BEE | Direct Replacement |