OEM Ford / Motorcraft Set of 8PC ZD-13 4C3Z-12A342-AA Diesel Glow Plugs 04 - 10 Ford 6.0L O.E. spec connectors ensure precise fit and easy installation. Regulating and heating coils designed for fast heat-up of the glow tube. Glow tube resists corrosion and vibration for long service life. Conical seat ensures a positive seal with the combustion chamber. 1 Year Manufacturer Warranty . MADE IN USA