BCBC M340-340S Engine Oil Pump

Engine Oil Pump for Stock Replacement

This Melling engine oil pump is a standard replacement part built for dependable oil pressure control. It is made in the USA and uses rotary pump design, close-tolerance machining, and pressure-and-flow testing for consistent operation.

Key Features

• Standard replacement engine oil pump for stock applications
• Rotary oil pump design with crankshaft drive
• Cast aluminum housing with aluminum cover and rust-preventative finish
• Powdered metal rotor for precise operation
• Includes gasket or seal, O-ring, pickup screen, and pump cover
• Individually tested for pressure and flow under operating conditions

Detailed Description

Part number M340-340S is an Melling engine oil pump engineered for consistent oil delivery in stock applications. It uses gear and gerotor technology, machined gears, and precision-ground end plates to support proper engine pressure and efficient pump operation. The standard pressure and standard volume design makes it a direct service choice for engines that require OE-style oiling performance. This part number M340-340S is built with a cast aluminum housing, powdered metal rotor, and crankshaft drive configuration.

Compatible with Ford Expedition, Lincoln Navigator, Ford F-150, Lincoln Mark LT, Ford F-250 Super Duty, and Ford F-350 Super Duty applications listed below. This part cross-references no interchange numbers in the provided data.

What It Is Used For

• Restoring oil pressure in a worn engine oiling system
• Replacing a pump with reduced flow or pressure output
• Addressing oiling concerns tied to pump wear or internal clearance issues
• Supporting stock engine operation with standard pressure and volume output

Installation Notes and Tips

Fitment includes applications that use the M340 oil pump and 340S oil pickup tube assembly. Confirm engine application and oil pickup tube requirements before installation. The pump uses a crankshaft drive and four mounting holes, so alignment and sealing surfaces should be checked carefully during service.

Quality Assurance

Melling manufactures this pump in the USA and tests each unit for pressure and flow to verify operation under conditions that duplicate real engine use. Production standards, close-tolerance machining, and precision-ground components support consistent quality control.