Dorman 264-556 Engine Oil Pan

OE-Style Engine Oil Pan Replacement

This Dorman engine oil pan is precision-engineered to match the original equipment pan on specific applications, including GMC Acadia, Buick Envision, Chevrolet Equinox, GMC Terrain, and Buick Regal. If you need a direct-fit replacement for a leaking or damaged pan, Part Number 264-556 provides the OE-style dimensions and features needed for a proper repair.

Key Features

• Steel construction with an uncoated metallic gray finish
• Wet sump design with center sump location
• Oil level sensor port included
• Baffled pan design for controlled oil movement
• Drain plug included
• Standard replacement grade for direct service use
• Mounting hole quantity: 14
• Engine oil pan only; gasket or seal not included

Detailed Description

Dorman 264-556 is built as a standard replacement engine oil pan for select GM vehicles that use a center-mounted wet sump layout. The steel pan is shaped to match original equipment dimensions, with a 5.7 capacity, 12.68 length, 17.62 maximum width, and 7.48 maximum depth to support proper fitment and oil containment. It also includes an oil level sensor port and a drain plug, while omitting the dipstick port, pickup, windage tray, and crank shaft wiper. This makes it a practical replacement for service work on 2017-2021 GMC Acadia, 2016-2020 Buick Envision, 2018-2020 Chevrolet Equinox, 2018-2020 GMC Terrain, and 2014-2017 Buick Regal applications. Part Number 264-556 is also a useful reference when searching for an OE-style engine oil pan replacement for these vehicles.

Common Problems This Part Can Address

• Oil leaking from a cracked, rusted, or damaged oil pan
• Stripped or damaged drain plug area
• Oil seepage around the pan sealing surface
• Impact damage from road debris or underbody contact
• Replacement needs after engine service or teardown

Installation Notes and Tips

Verify engine code, sensor port configuration, and pan dimensions before installation. Clean the mating surface thoroughly and inspect the sealing flange for distortion before mounting the new pan. Because the gasket or seal is not included, use the correct sealing component specified for the vehicle application. Confirm drain thread size and torque fasteners evenly to help prevent leaks. For shoppers comparing OE replacement options, this part cross-references Spectra Premium GMP129A for the same application.

Quality Assurance

Dorman manufactures this oil pan as a precision-matched replacement for specific vehicle years, makes, and models, with OE-style fit and function in mind. It is built to serve as a direct replacement for the original pan on the listed applications.