Engine Installation Harness (Engine to Cab) for Cummins engines with CM2250 electronics in 2008–2009 Peterbilt 387 trucks equipped with NAMUX1 chassis electronics and Caterpillar 70 Pin ADEM4 engine electronics.
This direct-fit harness is made for the chassis-specific electronics found on NAMUX1 Peterbilt trucks. It enables seamless integration of the Cummins ISX CM2250 engine with Caterpillar 70 Pin ADEM4-based NAMUX1 chassis electronics.
Kit Includes:
- (1) Engine to Cab Harness
Compatibility:
- Peterbilt 387 (2008–2009 models)
- NAMUX1 chassis electronics with Caterpillar 70 Pin ADEM4 base
- Cummins CM2250 engines
Important Notes:
- This harness is only compatible with Peterbilt 387 trucks featuring Caterpillar-based NAMUX1 chassis electronics.
- Emission breakout connectors may require adaptation due to factory connector variations.
- Provide the last 6 digits of your chassis VIN and the Cummins engine serial number when ordering.
- Confirm exact chassis electronics compatibility with Kustom Truck before ordering.
Key Specifications:
- Engine to Cab harness for Cummins CM2250
- Suitable for engine swaps and conversions in class 8 Peterbilt trucks
