Water Pump Gasket 14-22 Hemi 6.4L

The Water Pump Gasket 14-22 Hemi 6.4L is an OEM-equivalent replacement seal designed for Dodge, Jeep, and Ram vehicles equipped with the Mopar Gen III Hemi engine family. This gasket sits between the water pump housing and engine block, preventing coolant leaks that can lead to overheating, cavitation damage, and catastrophic engine failure. Anyone performing routine water pump replacement or addressing an existing coolant leak on late-model Hemi platforms needs a reliable gasket that matches factory specifications and sealing geometry.

Manufactured by MAHLE ORIGINAL/CLEVITE under part number K33718, this gasket features a 0.305-inch thickness in durable black rubber compound engineered to withstand sustained coolant pressure, thermal cycling, and the aggressive operating environment of modern Hemi engines. The rubber composition maintains elasticity across typical cooling system temperatures while resisting degradation from ethylene glycol-based coolants. Proper gasket seating requires clean, dry mounting surfaces and correct fastener torque specifications—deviations can compromise the seal and cause marginal leaks that appear weeks after reassembly.

Mechanics and DIY enthusiasts rebuilding water pumps on 2014–2022 Hemi 6.4L engines will find this gasket essential for preventing repeat failures and warranty concerns. It is compatible with all OEM and quality aftermarket water pump housings fitted to Gen III Hemi applications, including the 6.4L Hellcat and standard displacement variants. Installation is straightforward when the pump is removed: position the gasket concentrically on the mounting face, install the pump, and torque fasteners in a star pattern to manufacturer specifications to ensure even compression and long-term reliability.