The Motorcraft OEM DY876 Diesel Glow Plug Control Module Switch is a high-quality spark plug designed specifically for Ford 6.0 6.4 7.3 diesel engines. It comes with a manufacturer warranty of 3 years and is an interchange part with the part number YC3Z-12B533-AA. This performance/custom switch is a perfect fit for diesel fuel type vehicles looking for reliable ignition system components.