| Competitor Part Number | Competitor Name | Interchange Type | Notes |
|---|---|---|---|
| 14421R | AFTERMARKET BRAND | Direct Replacement | |
| 14421 | LESTER | Direct Replacement | |
| 14421N | ZORKOS | Direct Replacement | |
| 14421NR | ZORKOS | Direct Replacement | |
| 14421RA | ZORKOS | Direct Replacement | |
| 14421D | ZORKOS | Direct Replacement | |
| 14421NA | ZORKOS | Direct Replacement | |
| 14421C | ZORKOS | Direct Replacement |