If your battery lamp is intermittently or continuously illuminated, a faulty OEM harness could be to blame. This drop-in replacement restores proper charging system function with OEM level fit and durability, getting your truck back on the road fast. The factory charging circuit sense wires run from the PCM to the alternator, but due to poor routing and exposure, they often become damaged, chafed, or broken, leading to intermittent voltage readings and a check engine light. The OEM harness is difficult to diagnose and replace, but Fleece’s solution reroutes the alternator connection along the top side of the engine, making installation much easier.

This harness is a direct, drop-in replacement, eliminating charging circuit MIL issues caused by faulty OEM wiring. It’s precision-built in-house with fully automated wire cutting and terminal crimping, ensuring a durable, quality solution for your truck. Designed to fit seamlessly on 2020-2022 Ford 6.7L Powerstroke trucks, it’s also compatible with vehicles equipped with a secondary alternator.

If your charging system is acting up, don’t waste time chasing down electrical gremlins, fix it right the first time with Fleece Performance.