| Main Part No | Sales Part No | Part Description |
|---|---|---|
| 178063 | 178063 | New BorgWarner S4D025 Turbocharger for 350HP - 500HP Caterpillar (CAT) 3406B & 3406C Engine Applications |
| 178131 | 178131 | New BorgWarner S4DS025 Turbocharger for 1990-2002 Caterpillar (CAT) 3406 & 3406B Engine Applications |
| Competitor Part Number | Competitor Name | Interchange Type | Notes |
|---|---|---|---|
| 187248 | BORGWARNER | Direct Replacement | |
| SP187248 | MISC BRAND | Direct Replacement |