Cummins 5337704 Turbocharger Oil Return Gasket

This turbocharger oil return pipe gasket is manufactured to OEM specifications for the Cummins ISF2.8 and ISF3.8 engine series. The composite paper construction provides reliable sealing performance under thermal cycling and oil exposure conditions typical of diesel turbocharger drain systems. The gasket serves as a critical sealing interface between the turbocharger center housing and the oil return pipe assembly. It is designed to withstand continuous operating temperatures exceeding 250°C and contact with engine lubricating oil. The part is a direct replacement for Cummins OEM part numbers 5337704 and 3819900, commonly referenced in ISF2.8 overhaul gasket kits. Material composition consists of high-density composite fiber with oil-resistant binders, ensuring dimensional stability and compression recovery. Installation requires clean, flat flange surfaces and proper torque sequence per Cummins service manual specifications. This component is essential for preventing oil leaks at the turbocharger drain connection during engine rebuild or turbocharger replacement procedures.