A4720780680
Fuel Injector Line Seal
Detroit Diesel

The seal used on the high-pressure fuel injector line is a precision component designed to maintain a robust, leak-free interface between the injector line and its mating port. With a fixed length of 72 mm, this seal supports consistent compression and reliable shutoff under the elevated pressures typical of modern diesel injection systems. By preserving effective seal integrity, it helps maintain accurate fuel delivery timing and minimizes the risk of leaks that can degrade engine performance, compromise efficiency, or create safety hazards in the engine bay. The 72 mm dimension is critical for proper seating within the injector line assembly, ensuring repeatable performance across service intervals. This part resides in the fuel system seal family (VMRS 044-003-147), aligning with category 53667 for inventory and maintenance planning. The component is intended for use with compatible injector lines and associated hardware, delivering dependable service life in demanding operating conditions while supporting clean, efficient combustion and optimal power output.