Description

The Cummins Oil Pan Gasket 3931346 is a high-quality diesel engine gasket designed to provide a leak-free seal between the oil pan and engine block in Cummins diesel engines. This gasket is a direct replacement for Cummins OEM part number 3930906 , making it ideal for oil pan service, lower-engine repairs, and complete engine rebuilds. Manufactured from OEM-grade gasket materials , this oil pan gasket is engineered to withstand constant oil exposure, pressure changes, vibration, and temperature fluctuations common in heavy-duty diesel engine operation. The precision-cut design ensures uniform sealing pressure across the oil pan flange, helping prevent oil leaks and maintaining proper lubrication integrity. Designed for accurate fitment and long-term durability , the Cummins 3931346 oil pan gasket helps protect internal engine components, maintain oil pressure, and reduce the risk of contamination caused by oil loss. Replacing the oil pan gasket during lower-engine service or overhaul is strongly recommended to avoid recurring leaks and downtime. This oil pan gasket is commonly used as part of a lower gasket set or as a standalone replacement in Cummins diesel engine rebuild and bottom-end repair applications , including on-highway trucks, industrial engines, and heavy-duty equipment.