2-Piece Lower Radiator Tube – 304 Stainless Steel (Mill or Polished Finish) for Caterpillar 3406E / C15 Single Turbo.
This direct-fit 2-piece lower radiator tube is manufactured from 304 stainless steel and is configured for Caterpillar 3406E and C15 single turbo engine installations/conversions in the specified Peterbilt trucks.
Compatibility:
| Truck Model | Years | Original Factory Engines |
| Peterbilt 379 Long Hood | 1999-2003 | Cummins ISX or ISM with CM570 electronics |
| Peterbilt 379 Long Hood | 2004-2007 | CAT C13 KCB, CAT C15 Twin Turbo, Cummins ISM with CM875 electronics |
Kit Includes:
- (1) Lower Radiator Tube – 2-Piece Set, 304 Stainless Steel (Mill or Polished Finish)
Important Notes:
- Designed to connect to a 3" water pump outlet.
- Two-piece design improves fitment and serviceability.
- Contact Kustom Truck to confirm compatibility with your specific engine and chassis configuration.
Key Specifications:
- Material: 304 stainless steel (mill or polished finish available)
- Lower radiator tube for Caterpillar 3406E or C15 single turbo applications
