BCBC M501 Engine Oil Pump

Engine Oil Pump Overview

This Melling engine oil pump is a standard replacement part for Nissan and INFINITI applications that require consistent oil pressure and efficient circulation. Part number M501 is built with close-tolerance machining and tested for pressure and flow to support dependable engine lubrication.

Key Features

• Standard replacement engine oil pump for stock applications
• Rotary pump design with standard pressure and standard volume output
• Cast aluminum housing with aluminum cover for durable construction
• Stainless steel rotor and precision-ground end plates for wear resistance
• Includes gasket and seal components; pump cover is included
• Crankshaft-driven design with a rust-preventative finish

Detailed Description

Melling M501 is engineered for applications that need stable oil delivery under normal operating conditions. The pump uses gear and gerotor technology, with machined gears and precision-ground end plates to help maintain proper engine pressure and efficient operation. Its cast aluminum housing, aluminum cover, and stainless steel rotor support long-term service in compatible Nissan 370Z, 350Z, and INFINITI platforms.

Fitment includes 2007-2009 Nissan 350Z, 2009-2020 Nissan 370Z, 2007-2008 INFINITI G35, 2008-2013 INFINITI G37, 2008-2012 INFINITI EX35, 2013 INFINITI EX37, 2009-2012 INFINITI FX35, 2013 INFINITI FX37, 2009-2010 INFINITI M35, 2011-2013 INFINITI M37, 2012-2013 INFINITI M35h, 2014-2018 INFINITI Q50, 2014-2015 INFINITI Q60, 2014-2017 INFINITI QX50, 2014-2017 INFINITI QX70, 2014-2019 INFINITI Q70, 2015-2019 INFINITI Q70L, and 2015 INFINITI Q40. Part number M501 also cross-references Monroe Shocks & Struts (e.g., 15010-JK20A, 15010-JK20B) for the same application.

Common Uses

• Restores oil pressure when the original pump is worn
• Addresses low or inconsistent lubrication flow
• Helps correct pressure loss from internal pump wear
• Supports replacement during engine service or rebuild work
• Replaces a pump with damaged gears, rotor, or cover surfaces

Installation Notes and Tips

Verify engine application by year, make, and model before installation. Confirm gasket and seal condition during service, and inspect the pickup and related oiling components for wear or contamination. This pump uses a crankshaft drive and a three-hole mounting pattern, so alignment and clean mating surfaces are important for proper operation.

Quality Assurance

Melling manufactures this oil pump to production standards and individually tests each unit for pressure and flow under conditions that duplicate engine operating conditions. Part number M501 is built for standard replacement use in compatible Nissan and INFINITI applications.