Interstate-McBee Capscrew - Cylinder Head - M-3920779

The M-3920779 Cylinder Head Capscrew is a high-strength fastener engineered for secure installation of the cylinder head in Cummins® C Series and ISC diesel engines. Manufactured to strict OEM specifications, this capscrew ensures proper clamping force to maintain head gasket integrity and prevent engine leaks. Ideal for engine rebuilds or head replacement jobs, it delivers reliable performance under extreme pressure and thermal cycling.

• Direct replacement for Cummins® 3920779 capscrew

• Designed for securing cylinder head to engine block

• Manufactured from premium-grade alloy steel

• Heat-treated for superior tensile strength and durability

• Meets or exceeds OEM torque specifications

• Corrosion-resistant coating for long-term performance