BCBC M547 Engine Oil Pump and Timing Cover Assembly

Engine Oil Pump and Timing Cover Assembly

This Melling engine oil pump and timing cover assembly is a standard replacement for select Toyota, Lexus, and Scion applications. Built with aluminum housings and a powdered metal rotor, M547 is engineered for consistent oil pressure and efficient pump operation.

Key Features

• Standard replacement oil pump and timing cover assembly for engine service
• Aluminum cover and housing for durable construction
• Powdered metal rotor with close-tolerance machining for efficient operation
• Standard pressure and standard volume design
• Gasket or seal and O-ring included for sealing surfaces
• Rust preventative finish for added surface protection

Detailed Description

Melling M547 combines the oil pump and timing cover into one assembly for engines that use a crankshaft-driven pump design. The unit uses gear and gerotor technology, precision-ground end plates, and individually tested pressure and flow checks to help maintain proper engine oiling under operating conditions. This part number is used across multiple Toyota, Lexus, and Scion models, including the Toyota Camry, Toyota RAV4, and Lexus ES300h, making M547 a direct service option for stock-style repairs where the original assembly is being replaced.

This part cross-references DNJ OP955A for the same application.

What It Is Used For

• Restoring oil pressure when the original pump assembly is worn
• Replacing a leaking timing cover or sealing surface
• Addressing low oil pressure caused by internal pump wear
• Servicing crankshaft-driven oil pump assemblies in stock applications
• Repairing oil seepage around the pump and cover interface

Installation Notes and Tips

Verify engine application before installation, since M547 is used across multiple Toyota, Lexus, and Scion platforms. Inspect the mating surfaces, seals, and related engine components during service, and follow the manufacturer’s torque and assembly procedures for proper sealing and pump operation.

Quality Assurance

Melling builds this assembly to production standards and tests each unit for pressure and flow under conditions that simulate engine operation. Part number M547 is engineered for dependable performance in standard replacement service.