J1587/J1708 Datalink Jumper Harness – OBD to Dash Data Bus Block for NAMUX3 Peterbilt and Kenworth trucks.
This jumper harness connects the OBD diagnostic connector to the data bus block inside the dash on NAMUX3 Peterbilt and Kenworth trucks. It is specifically designed for engines that use J1587 as the primary diagnostic protocol, including Caterpillar, Cummins N14/M11, and Detroit Series 60 engines. Ideal when the factory datalink connection is missing or when adding a data bus block to the system.
Kit Includes:
- (1) J1587/J1708 Datalink Jumper Harness
Compatibility:
- NAMUX3 Peterbilt and Kenworth trucks (2011 and newer)
- Engines using J1587 diagnostic protocol: Caterpillar, Cummins N14/M11, Detroit Series 60
Important Notes:
- This jumper may or may not be required depending on your specific truck configuration and existing wiring.
- If you are unsure whether this harness is needed for your truck, contact Kustom Truck for compatibility confirmation.
Key Specifications:
- J1587/J1708 datalink jumper for NAMUX3 chassis
- Restores or adds diagnostic communication between OBD port and data bus block
- Enables full diagnostic access with OEM engine software
- Engineered for reliable connectivity and long-term durability
1 year
