Description

The Cummins Exhaust Valve Kit 3802356 is a precision-engineered diesel engine valve kit designed to withstand extreme exhaust temperatures, high combustion pressures, and continuous heavy-duty operation in Cummins diesel engines. This kit is a direct replacement for Cummins OEM part numbers 3901607 and 3904105 , making it ideal for cylinder head service, valve train repairs, and complete engine rebuilds. Manufactured from high-temperature, heat-resistant alloy steel , the exhaust valves in this kit are engineered to resist thermal fatigue, oxidation, and valve face erosion caused by prolonged exposure to hot exhaust gases. The precision-machined valve faces and stems ensure accurate seating, proper sealing, and long service life under demanding diesel engine conditions. Designed for accurate fitment and reliable exhaust flow control , the Cummins 3802356 exhaust valve kit helps restore proper combustion efficiency, maintain correct valve timing, and prevent power loss or compression leakage. Replacing exhaust valves during a cylinder head overhaul is critical for preventing burned valves, poor engine performance, and premature valve train failure. This exhaust valve kit is commonly used as part of an upper gasket set or valve train service in Cummins diesel engine rebuild and cylinder head repair applications , including on-highway trucks, industrial engines, and heavy-duty equipment.