Dorman 264-331 Engine Oil Pan

OE-Style Engine Oil Pan Replacement

Dorman 264-331 is a precision-engineered aluminum engine oil pan built to match the original equipment pan on specific applications. It is a direct replacement for vehicles that need a reliable seal surface and correct sump layout, including 1998-2002 Chevrolet Camaro and Pontiac Firebird, plus 2009 Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 with an oil level sensor.

This Dorman 264-331 oil pan is designed for a center-sump, wet-sump engine setup and includes a drain plug for service convenience. The aluminum construction, baffled design, and OE-style dimensions help restore proper oil containment on the correct vehicle applications.

• Aluminum construction for OE-style replacement fit and finish
• Baffled design for improved oil control in the pan
• Center-sump, wet-sump configuration
• Drain plug included
• 14 mounting holes for application-specific installation
• Compatible with vehicles equipped with an oil level sensor where listed

Detailed Product Overview

Built for specific GM applications, Dorman 264-331 matches the original equipment oil pan profile to support proper engine oil storage and drainage. The pan measures 22 inches long, 12 inches wide, and 5.5 inches deep, with a 5-quart capacity and a 12 mm drain thread size. It does not include a gasket or seal, pickup tube, windage tray, or installation hardware, so those components should be verified separately before service. This part cross-references GM 12558762 and Spectra Premium GMP77A for the same application.

What This Oil Pan Helps Address

• Oil leaks from a damaged, corroded, or cracked pan
• Improper sealing at the pan rail
• Drain plug service issues caused by a worn pan
• Oil containment problems on center-sump wet-sump engines
• Replacement needs on 1998-2002 Chevrolet Camaro and Pontiac Firebird, and 2009 Chevrolet Express 2500/3500 and GMC Savana 2500/3500 with oil level sensor

Installation Notes and Tips

Confirm engine configuration and oil level sensor application before installation. Inspect the mounting surface for damage, clean all sealing surfaces thoroughly, and replace the gasket or seal as required since it is not included. Verify drain plug thread size and torque fasteners evenly to avoid distortion of the aluminum pan. Dorman 264-331 should be matched to the exact year, make, model, and sensor-equipped application listed.

Quality Assurance

Dorman manufactures this oil pan as a direct-fit replacement for the listed vehicles, with OE-style dimensions and application-specific engineering. The aluminum construction and baffled design support dependable service in the intended GM applications.