Description

The Cummins Oil Cooler Gasket 3926760 is a high-quality diesel engine gasket designed to provide a secure, leak-free seal between the oil cooler and engine assembly in Cummins diesel engines. This gasket is a direct replacement for Cummins OEM part number 3929798 , making it ideal for oil cooler service, lower-engine repairs, and complete engine rebuilds. Manufactured from OEM-grade gasket materials , this oil cooler gasket is engineered to withstand constant oil and coolant exposure, pressure variations, vibration, and temperature cycling common in heavy-duty diesel engine operation. The precision-cut design ensures uniform sealing pressure, helping prevent oil-to-coolant cross-contamination and external leaks. Designed for accurate fitment and long-term durability , the Cummins 3926760 oil cooler gasket helps maintain proper oil cooling efficiency, protect internal engine components, and support stable engine performance. Replacing the oil cooler gasket during lower-engine service or overhaul is strongly recommended to avoid recurring leaks and costly engine damage. This gasket is commonly used as part of a lower gasket set or as a standalone replacement in Cummins diesel engine rebuild and oil cooler repair applications , including on-highway trucks, industrial engines, and heavy-duty equipment.