Ford Motorcraft Glow Plug for Ford (2008-10) F-250/350/450/550 6.4L Power Stroke

This genuine Ford Motorcraft glow plug, part number 8C3Z-12A342-A, is for the 2008-2010 6.4L Power Stroke in F-250, F-350, F-450 and F-550 Super Duty trucks.

Every 6.4L is now past 15 years old, and a lot of them are still on original glow plugs. Weak plugs mean long cranking, white smoke and a rough idle until the engine warms up, especially on trucks that sit or see real winters.

We recommend replacing all eight plugs at once. If one has failed, the rest are usually close behind.

Install on a cold engine. On high-mile trucks, soak each plug with penetrating oil and back it out slowly. If one fights you, work it back and forth instead of forcing it; a plug broken off in the head turns a simple job into a big one.