The Autolite 1114 Glow Plug is a high-quality spark plug designed specifically for 2003-2004 Ford F-250, F-350, F-450, and F-550 Excursion trucks with diesel fuel type. This copper glow plug has a 14mm thread diameter, 121mm length, and operates at 11V with a standard configuration. It comes with a 5-year manufacturer warranty and is an interchange part with numbers 80037, ZD-12, Y4002J, and 97190. The Autolite brand ensures reliable performance for your vehicle's ignition system.