Are you servicing the fuel injectors on your Powerstroke? The MAHLE GS33703 Fuel Injector Seal Kit gives you everything you need to restore proper sealing at the injector connection, helping maintain consistent fuel delivery and prevent leaks within the high-pressure fuel system. Over time, injector O-rings and sealing washers can deteriorate due to heat cycles, fuel pressure, and exposure to diesel fuel, leading to fuel seepage, loss of rail pressure, or poor injector performance. Replacing the seals during injector service helps ensure the fuel system remains properly sealed and operating efficiently. Designed for Ford trucks with the 6.7L Powerstroke, this OE-quality kit provides dependable sealing performance during injector maintenance or replacement.

Manufactured to meet or exceed original equipment specifications, the MAHLE GS33703 kit includes the necessary high-quality seals and sealing components required to service four injectors, meaning two kits are typically required to reseal all eight injectors in the engine. Precision-engineered O-rings and sealing washers are built to withstand the high pressure, heat, and fuel exposure found in modern diesel injection systems. The components compress evenly during installation to create a tight and reliable seal that helps maintain proper rail pressure and prevent fuel or combustion gas leaks. Built as a direct-fit OE-style replacement, the seals install easily during injector service and help restore factory-level fuel system sealing and long-term reliability for your 6.7L Powerstroke engine.