Orange insulator for engines built on or after  2/01/12

 The only parts recommended by Ford Motor Company for Ford and Lincoln vehicles. Motorcraft Glow Plugs are designed and tested to Fords rigorous engineering standards. Motorcraft parts fit right the first time for quicker, easier installation. ZD18

• 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.
• Threads designed for strength and plated to prevent seizure.