Description

The Cummins Oil Pump Gasket 3926203 is a precision-engineered sealing component designed to ensure a leak-free connection between the oil pump and engine block in Cummins diesel engines . This gasket is a direct replacement for Cummins OE part number 3804896 , delivering OEM-correct fitment, sealing reliability, and long-term durability. Manufactured from high-quality, oil-resistant gasket material, this oil pump gasket is engineered to withstand constant oil pressure, heat cycles, and engine vibration common in heavy-duty diesel applications. Proper sealing at the oil pump mounting surface is critical for maintaining consistent oil pressure, preventing internal leaks, and protecting vital engine components from lubrication failure. The Cummins 3926203 oil pump gasket is commonly replaced during lower engine repairs, oil pump servicing, engine resealing, and complete engine rebuilds . Replacing a worn or damaged oil pump gasket helps prevent pressure loss, oil seepage, and premature engine wear. Supplied as one complete gasket , this component is ready for professional installation and is commonly included as part of a Cummins lower gasket set.