Description

The Cummins Cylinder Head Gasket G-5258754 is an OEM-spec sealing component engineered to provide reliable combustion sealing, compression stability, and long-term durability in Cummins diesel engines . This head gasket is a direct replacement for Cummins OE part number 5258754 , ensuring factory-correct fitment and performance. Designed to withstand high combustion pressures and elevated operating temperatures, the G-5258754 head gasket features precision-cut sealing surfaces and reinforced fire rings to maintain even clamping force between the cylinder head and engine block. Proper sealing is critical to preventing compression loss, coolant leakage, and oil cross-contamination. This head gasket is commonly supplied as part of an upper gasket set and is installed during cylinder head replacement, upper engine overhauls, and complete engine rebuilds . Using an OEM-spec head gasket helps restore factory compression ratios, protect internal engine components, and ensure long service life. Trusted by diesel technicians, fleet maintenance teams, and professional engine builders, the Cummins G-5258754 head gasket delivers dependable sealing performance in demanding diesel applications. Cross-Reference Aftermarket Reference: G-5258754 OEM Reference: 5258754 Application: Upper gasket / cylinder head sealing