J1587 Jumper Harness (Firewall Cannon Plug to OBD Connector) for Kenworth and Peterbilt trucks with NAMUX4 chassis electronics.
This direct-fit harness enables compatibility between the firewall cannon plug and the OBD connector. It bridges earlier generations of engine electronics that utilize J1587 protocols to broadcast engine control data.
Kit Includes:
- (1) J1587 Jumper Harness (Firewall Cannon Plug to OBD Connector)
Compatibility:
- Kenworth and Peterbilt trucks with NAMUX4 chassis electronics
- Caterpillar 40 Pin and 70 Pin engine electronics
- Cummins N14 engine electronics
- Detroit Diesel DDEC3, DDEC4, and DDEC5 engine electronics
Important Notes:
- This harness is exclusively for Kenworth and Peterbilt trucks with NAMUX4 chassis electronics and the specified engine models.
- Confirm compatibility with your specific truck and engine configuration by contacting Kustom Truck.
Key Specifications:
- J1587 jumper harness for bridging engine electronics to NAMUX4 chassis
- Suitable for engine swaps and conversions in heavy-duty trucks
