Caterpillar Throttle Jumper Harnesses

Our Caterpillar throttle jumper harnesses enable bench-testing of throttle position sensor (TPS) communication with Cat ECMs outside the vehicle. This simple but essential harness connects to our base bench harness and allows customers to start the engine, idle up/down, and verify throttle response right on the shop floor—critical for confirming proper TPS signal and ECM integration during a Caterpillar engine conversion or swap.

By adding this throttle jumper, you can run basic engine functions and catch any throttle-related issues before full installation, saving time and preventing drivability problems in the truck.

Browse our Caterpillar throttle jumper harnesses below to add this capability to your bench setup. Pair it with our base bench harness and battery jumper for complete testing. Questions about compatibility with your ADEM ECM or TPS setup? Contact our team for guidance.