This wiring harness is specifically designed to fit Cummins Diesel Engines M11, QSM, and ISM. It is a high-quality product manufactured in China and comes with OE/OEM part number 2864504X. The harness is compatible with a variety of vehicles and can be used for a range of purposes. Whether you need to replace a faulty harness or upgrade your engine's performance, this wiring harness is an excellent choice. It is made from durable materials that ensure long-lasting performance and can withstand the toughest conditions. Purchase this product today and experience the benefits of a reliable wiring harness that will keep your engine running smoothly.