We recommend only using the OEM Motorcraft replacement glow plugs to avoid the potential failure of the tip. Many aftermarket, less expensive glows plugs have the danger of broken tips that separate from the main body. After failure, the tips could fall into the engine causing catastrophic engine damage. For full cold start protection, add a new glow plug relay. This part fits 1994-2003 7.3L Powerstrokes.
Glow Plug Features:
OEM Ford Glow Plug
Lower Failure Rate
Doesn't Separate Inside the Engine
Highest build quality
Single glow plug.
Add 8 for the entire engine.
Motorcraft provides the best glow plugs. Using a generic auto parts store brand can lead to engine failure. We exclusively use Motorcraft for that reason. For a glow plug kit, add the Alliant relay. Replacing the glow plugs is recommended anytime you're inside the valve cover and your glow plugs are more than 1 year old. Price is for 1 glow plug. Eight are needed for the entire set.