Cummins Throttle Jumper Harnesses

Our Cummins throttle jumper harnesses enable bench verification of throttle position sensor (TPS) signals to the ECM, allowing you to start the engine, idle up/down, and confirm proper throttle response right on the shop floor. This simple harness connects to our base bench harness and is wired for Cummins-specific throttle circuits—critical during conversions to eliminate drivability issues like poor response or no throttle after installation.

By adding this jumper, you catch throttle communication problems early, saving time in engine swaps involving Cummins ISX, ISM, or similar models.

Browse our Cummins throttle jumper harnesses below. Pair with our base bench harness and battery jumper for complete testing. Need help with CM generation compatibility or TPS setup for your conversion? Contact our team—we're here to assist.