BCBC M365-395S Engine Oil Pump

Engine Oil Pump Overview

This Melling engine oil pump is a standard replacement part built for dependable oil pressure and efficient circulation. It is made in the USA and uses rotary pump design with gear and gerotor technology for consistent operation.

Fits 2007-2014 Cadillac Escalade, N/A. Fits 2007-2014 Cadillac Escalade ESV, N/A. Fits 2007-2014 Chevrolet Suburban 1500, N/A. Fits 2007-2014 GMC Yukon, N/A. Fits 2007-2014 GMC Yukon XL 1500, N/A. Fits 2007-2013 Cadillac Escalade EXT, N/A. Fits 2011-2013 Chevrolet Avalanche, N/A. Fits 2007-2009 Chevrolet Avalanche, N/A. Fits 2007-2013 Chevrolet Silverado 1500, N/A. Fits 2007-2013 GMC Sierra 1500, N/A. Fits 2008-2011 Chevrolet Tahoe, N/A. Fits 2009 Chevrolet Express 1500, N/A. Fits 2009 GMC Savana 1500, N/A.

Key Features

• Standard replacement oil pump for stock applications
• Rotary design with gear and gerotor technology
• Machined gears and precision-ground end plates
• Aluminum housing and cover with rust-preventative finish
• Pickup screen, gasket or seal, and O-ring included

Detailed Description

Part number M365-395S is engineered for applications that require stable oil pressure and efficient pump output. The aluminum housing and cover, powdered metal rotor, and close-tolerance machining support accurate pump operation, while the standard pressure and standard volume configuration matches OE-style service needs. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Use M365-395S when servicing GM full-size trucks and SUVs such as the Chevrolet Silverado 1500 and GMC Sierra 1500, or larger utility models like the Cadillac Escalade and Chevrolet Tahoe. The M365-395S designation is also used for related stock applications where the oil pump and pickup tube assembly are specified together.

Common Issues Addressed

• Low oil pressure caused by pump wear
• Inconsistent oil circulation during engine operation
• Reduced pump efficiency from worn internal components
• Service replacement for stock oiling system maintenance

Installation Notes

Verify engine application and pickup tube requirements before installation. This pump uses crankshaft drive and a rotary design with four mounting holes. Confirm gasket, seal, and pickup screen placement during assembly, and inspect the oiling system for contamination or wear before reassembly.

Quality Assurance

Melling states that each pump is individually tested for pressure and flow under conditions intended to duplicate actual engine operating conditions. The product is assembled to high production standards using quality materials for consistent service performance.