Product Description

Melling M452HV High Volume Oil Pump for Mopar 5.7L and 6.4L HEMI Engines

High-Volume, Standard-Pressure Pump for 2009-Later 5.7L and 2011-Later 6.4L HEMI Engines

Increase oil volume in a compatible Mopar 5.7L or 6.4L HEMI engine with the Melling M452HV high-volume, standard-pressure oil pump. The M452HV delivers 20% more oil volume than the standard Melling M452 pump, making it well suited for high-mileage engines and rebuilt engines with looser-than-stock bearing clearances. Its gears are machined to close tolerances for efficient pump operation, while precision-ground end plates provide increased wear resistance. Every Melling M452HV oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operation. The pump is made in the USA and includes a new O-ring for the oil-pump pickup tube.

Key Features & Benefits

20% Higher Oil Volume: The M452HV delivers 20% more oil volume than the standard Melling M452 oil pump. It maintains a standard-pressure configuration while providing increased oil delivery for compatible HEMI engine applications.
Designed for Specific Engine Builds: The increased-volume design is ideal for high-mileage engines and rebuilds with looser-than-stock bearing clearances. This makes the pump suitable for supported 5.7L and 6.4L HEMI service and rebuilding applications.
Precision-Machined Internal Components: Pump gears are machined to close tolerances to support proper pressure and efficient oil-pump operation. Precision-ground end plates provide the wear-resistant surfaces required inside the pump assembly.
Individually Pressure and Flow Tested: Every Melling oil pump is tested for pressure and oil flow before leaving production. Testing is performed under conditions designed to duplicate the operating environment experienced inside an engine.
Pickup-Tube O-Ring Included: A new oil-pump pickup-tube O-ring is supplied with the M452HV. The high-volume, standard-pressure pump is manufactured in the USA for the supported Mopar HEMI engine applications.