BCBC M313 Engine Oil Pump

Engine Oil Pump Overview

This Melling engine oil pump is a standard replacement for select Acura and Honda applications. It is built around gear and gerotor technology, with close-tolerance machining and pressure-and-flow testing for consistent oiling performance. Part number M313 is a direct reference for buyers searching for a replacement oil pump for compatible Acura Integra, Honda CR-V, and Honda Civic applications.

Key Features

• Standard replacement oil pump for engine lubrication service
• Gear and gerotor design for efficient oil delivery
• Machined gears and precision-ground end plates for wear resistance
• Aluminum housing and aluminum cover with rust-preventative finish
• Crankshaft-driven design with powdered metal rotor material
• Gasket or seal included for installation service
• Individually tested for pressure and flow under operating conditions

Detailed Description

Melling M313 is engineered as a standard-volume, standard-pressure engine oil pump for applications that require dependable oil circulation and stable pressure control. The aluminum housing and cover, powdered metal rotor, and close-tolerance gear machining support efficient operation under normal engine demands. This part number M313 is a practical choice for owners servicing Acura Integra, Honda CR-V, or Honda Civic engines that call for this pump configuration.

The pump uses a crankshaft drive type and includes a pump cover, while the rust-preventative finish adds corrosion resistance to the assembly. Melling’s production process emphasizes precision and individual pressure-and-flow testing, which helps verify output before the part leaves the factory. For shoppers comparing M313 against other listings, this oil pump cross-references Sealed Power 224-43587 for the same application.

What It Is Used For

• Restoring proper engine oil pressure
• Addressing low oil pressure caused by pump wear
• Replacing a pump with worn gears or rotor surfaces
• Correcting inconsistent oil circulation in the lubrication system
• Servicing a failed pump cover or sealing surface

Installation Notes and Tips

Verify engine application, mounting pattern, and pickup dimensions before installation. This pump uses four mounting holes and a crankshaft drive type, so matching the original configuration is important for proper fitment. Confirm gasket and seal requirements during service, and inspect the oil pickup and related lubrication components before reassembly.

Quality Assurance

Melling manufactures this pump to high production standards and tests each unit for pressure and flow under conditions that simulate engine operation. That process supports consistent output and repeatable performance across the listed applications.