MAHLE Fuel Injector Seal Kit

The MAHLE Fuel Injector Seal Kit (also called a fuel injector O-ring kit or injector seal set) helps keep the fuel system sealed where each injector meets the fuel rail and the intake manifold or cylinder head. New seals help prevent fuel leaks, vacuum leaks, and loss of fuel pressure. They are a key part of any injector replacement or fuel system service.

Key Features:

• Made by MAHLE, an established OE supplier of engine sealing and gasket components
• Seals made from fuel-resistant elastomer materials that hold up against gasoline, heat, and pressure cycling
• Designed to restore a leak-free seal between the injector and its mounting bore or fuel rail
• Helps maintain correct fuel delivery and spray pattern for smooth running and efficient combustion
• Suited to injector service, fuel rail removal, and engine rebuilds

Replace injector seals whenever injectors are removed, since old seals can harden, shrink, or crack with age and heat. Fresh seals help protect against fuel odor, hard starting, rough idle, and underhood fire risk. Select the child item that matches your application.