BCBC M340HV-340S Engine Oil Pump

Engine Oil Pump Overview

This Melling engine oil pump is built for applications that need standard pressure with increased oil volume. Part number M340HV-340S is a high-volume rotary pump made in the USA and engineered for consistent pressure and flow control.

Key Features

• High-volume design with 20% additional volume over stock.
• Rotary oil pump construction with crankshaft drive.
• Cast aluminum housing and aluminum cover for durable construction.
• Powdered metal rotor and precision-ground end plates for efficient operation.
• Includes gasket or seal, O-ring, pickup screen, and pump cover.
• Individually tested for pressure and flow under operating conditions.

Detailed Description

M340HV-340S is a Melling oil pump designed for Ford and Lincoln truck and SUV applications that call for a high-volume, standard-pressure solution. It uses gear and gerotor technology, close-tolerance machining, and precision-ground wear surfaces to support proper engine pressure and efficient pump operation. This part number is listed for 2004-2010 Ford F-150, 2005-2014 Ford Expedition, 2005-2014 Lincoln Navigator, 2006-2008 Lincoln Mark LT, 2007 Ford F-250 Super Duty, and 2007 Ford F-350 Super Duty. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Low oil pressure caused by a worn or inefficient pump.
• Reduced oil circulation in a high-mileage engine.
• Need for increased oil volume over stock specifications.
• Restoring stable pressure after pump wear or internal leakage.

Installation Notes

Verify engine application, pump style, and pickup dimensions before installation. The pump uses a crankshaft drive and a 4-hole mounting pattern, with a 1.000-inch inlet and a 0.938-inch pickup screen diameter. Gasket or seal and O-ring are included; bolts are not included.

Quality Assurance

Melling manufactures this pump in the USA and tests each unit for pressure and flow to confirm operation under conditions that duplicate engine use. The improved-design construction, close-tolerance machining, and precision-ground components support consistent performance.