J1587/J1708 Datalink Jumper Harness for NAMUX3 Peterbilt and Kenworth trucks.
This direct-fit 2-piece jumper harness connects the engine harness firewall connector to the OBD connector inside the dash. It enables diagnostic communication with engines using J1587 protocol on NAMUX3 chassis electronics.
Kit Includes:
- (1) J1587/J1708 Datalink Jumper Harness (2-piece)
Compatibility:
- 2011 and newer Peterbilt and Kenworth trucks with NAMUX3 chassis electronics
- Caterpillar engines, Cummins N14 or M11 engines, Detroit Series 60 engines, and other J1587-protocol engines
Important Notes:
- For 2011-2015 trucks with data bus block: Use 1 piece (firewall to bus block).
- For 2016 and newer trucks: Use both pieces (firewall to OBD connector).
- Required for diagnostic communication with J1587 engines using OEM engine software.
- If you are not certain of your chassis electronics or truck configuration, contact Kustom Truck for verification.
Key Specifications:
- 2-piece J1587/J1708 datalink jumper harness
- Connects engine firewall connector to dash OBD connector
- Suitable for Peterbilt and Kenworth NAMUX3 trucks
1 Year
