Melling 10452HV High-Volume High-Pressure Oil Pump – Gen III Hemi

Take Control of Your Hemi’s Lubrication Stop worrying about oil starvation during high-RPM runs. 

Melling 10452HV Is the ultimate lubrication upgrade for your Gen III Chrysler Hemi, engineered to provide the consistent, high-volume flow that performance engines demand. Whether you are pushing a 5.7L or 6.4L build to its limits or maintaining a 6.2L Hellcat, this pump delivers the peace of mind that comes with superior engine protection.

Why Choose the 10452HV

• 20% More Volume: Provides a massive 20% increase in oil volume compared to standard factory units, ensuring vital components stay lubricated even under extreme stress.
• Adjustable Performance: Features a unique threaded relief nut, allowing you to easily swap between the included 75 PSI high-pressure (factory installed) and 65 PSI stock-pressure springs to match your specific build.
• Engineered for Durability: Built with a hard-coat anodised aluminium housing and a phosphate-coated cast iron cover to reduce internal wear and maintain a perfect seal for the life of your engine.
• Individually Tested: Every single pump is flow and pressure tested at the factory to verify both idle and bypass pressure, ensuring it's ready for high-performance use straight out of the box.

Technical Specifications

• Housing: CNC-machined cast aluminium with hard-coat anodising.
• Cover: CNC-machined cast iron with phosphate coating.
• Pick-Up Size: Compatible with 15/16" diameter bolt-on pickup tubes.
• Relief Springs: Includes both 75 PSI (Installed) and 65 PSI (In box) options.
• Performance Ceiling: Offers a pressure ceiling 10–12 PSI higher than stock 5.7L/6.4L pumps.

Vehicle & Engine Compatibility

This is a direct-fit replacement for 2009 and later vehicles equipped with Gen III Hemi engines:

• Supported Engines: 5.7L V8 (EZD, EZH), 6.4L V8 / 392 (ESG), and 6.2L Hellcat.
• Chrysler 300C & SRT-8: 2009–2023.
• Jeep Grand Cherokee: 2010–2023 (5.7L WH/WK and 6.4L SRT models).
• Ram 1500: 2013–2023 (DS and DT models with 5.7L Hemi).