Cummins 327844600 Injector Cup

The Cummins 327844600 injector cup, also known as a nozzle sleeve, is a critical fuel system component designed for SAC type injectors. It provides the sealing interface between the injector nozzle and the cylinder head, ensuring high-pressure fuel containment and proper heat dissipation. Manufactured to OEM specifications for dimensional accuracy and material hardness, this cup withstands extreme combustion pressures and thermal cycles in heavy-duty diesel applications. It serves as a direct replacement for the original equipment cup during injector service or cylinder head overhaul.