Water Pump Gasket 03-08 Hemi 5.7L

The Water Pump Gasket 03-08 Hemi 5.7L is a critical OEM-equivalent sealing component designed for Dodge, Chrysler, and Jeep vehicles equipped with the legendary Hemi 5.7-liter engine platform. This gasket prevents coolant leakage at the water pump mounting surface—one of the most common failure points in aging Hemi powerplants. Whether you're maintaining original equipment, rebuilding a high-mileage engine, or performing routine preventive maintenance, a quality water pump gasket is non-negotiable to preserve cooling system integrity and prevent catastrophic overheating.

Manufactured by MAHLE ORIGINAL/CLEVITE under part number K31773, this gasket is engineered to exact OEM specifications with premium composite and elastomer materials that resist thermal cycling and coolant degradation over time. The 9 x 0.75 x 13.5-inch profile ensures proper fit and sealing geometry at the water pump flange interface, where ambient underhood temperatures and pressurized coolant flow demand absolute reliability. MAHLE's manufacturing standards guarantee dimensional accuracy and consistent compression set retention, eliminating the leaks and seepage that plagued inferior aftermarket alternatives and ensuring your cooling system maintains proper pressure and flow rates under sustained engine load.

This gasket is essential for any DIY builder, professional mechanic, or enthusiast servicing 2003–2008 model-year Hemi 5.7L engines in Ram trucks, Dodge Chargers, Magnums, and Jeep Grand Cherokees. Installation requires only basic hand tools and takes 30–45 minutes once the water pump is accessible; always pair this gasket with a fresh water pump seal kit and replace all old coolant to maximize system longevity. The compact 0.13-pound weight and precise engineering make it an indispensable part for any Hemi engine refresh, restoration, or overhaul—preventing costly downtime and protecting your investment in this powerful naturally aspirated platform.