Ensure reliable diagnostic communication in your Peterbilt or Kenworth truck with the Kustom Truck J1587/J1708 Datalink Jumper Harness, designed to connect the engine harness firewall connector to the OBD connector inside the dash. This jumper harness is essential for NAMUX3 generation Peterbilt or Kenworth trucks equipped with engines that utilize J1587 as the primary diagnostic communication protocol, such as Caterpillar engines, Cummins N14 or M11 engines, or Detroit Series 60 engines. Without this jumper installed on a NAMUX3 truck, diagnostic communication with the engine ECM using OEM engine software will not be possible, making it a critical component for maintenance and troubleshooting. This 2-piece jumper harness is versatile, adaptable for all NAMUX3 trucks: for 2011-2015 trucks with a data bus block, only one piece is used to connect from the firewall to the bus block; for 2016 and newer trucks, both pieces are used to connect directly from the firewall to the OBD connector. For compatibility confirmation, contact Kustom Truck. Upgrade your truck’s diagnostic capabilities with this precision-engineered jumper harness, crafted for durability and performance.
KIT INCLUDES:
- (1) J1587/J1708 Datalink Jumper Harness (2-piece)
KEY FEATURES:
- J1587/J1708 datalink jumper harness for NAMUX3 Peterbilt or Kenworth trucks
- Connects engine harness firewall connector to OBD connector for diagnostic communication
- Required for engines using J1587 protocol (Caterpillar, Cummins N14/M11, Detroit Series 60)
- 2-piece design: 1 piece for 2011-2015 trucks (firewall to bus block); both pieces for 2016+ trucks (firewall to OBD)
- Enables diagnostic communication with engine ECM using OEM engine software
- Contact Kustom Truck for compatibility confirmation
- Engineered for durable performance and precise diagnostic connectivity
Upgrade your Peterbilt or Kenworth truck’s diagnostic system with Kustom Truck Parts’ J1587/J1708 Datalink Jumper Harness, crafted for reliability and precision.
