Spectra GMP133A Engine Oil Pan - Lower

Engine Oil Pan for GM Lower Applications

The Spectra GMP133A engine oil pan is a standard replacement for select GM lower engine applications, including Cadillac XT5, Cadillac XT6, Chevrolet Blazer, GMC Acadia, Buick Regal Sportback, and Buick LaCrosse. Built from steel with a black powder-coated finish, it is made to match original equipment fit and function for routine oil system service.

Part number GMP133A is engineered with 11 mounting holes, an included drain plug, and an M12 x 1.25 drain thread size for direct replacement use on the listed vehicles.

Key Features

• Steel construction for durable under-engine protection
• Black powder-coated finish for corrosion resistance
• Standard replacement oil pan for lower engine mounting locations
• Drain plug included with M12 - 1.25 drain thread size
• 6.0 capacity specification
• 11 mounting holes for OE-style installation points
• Fits select 2017-2026 Cadillac XT5, 2020-2025 Cadillac XT6, 2019-2026 Chevrolet Blazer, 2017-2023 GMC Acadia, 2018-2020 Buick Regal Sportback, and 2017-2019 Buick LaCrosse, lower

Detailed Description

Spectra Premium oil pans are built with manufacturing controls and engineering standards aimed at meeting or exceeding the performance of the original equipment they replace. The GMP133A is a steel engine oil pan with a powder-coated black finish, designed as a direct-fit lower pan for the listed GM platforms. It does not include a gasket or seal, oil level sensor port, dipstick port, pickup, windage tray, or baffling, making it a straightforward OE-style replacement for service work on the engine oil system. This part cross-references GM OE numbers 264884 and 12647615 for the same application.

What This Part Helps Address

• Oil leaks from a damaged or corroded oil pan
• Cracked or dented pan surfaces from road impact
• Stripped or worn drain thread issues
• Replacement needs after oil pan removal during engine service
• Restoration of proper oil containment on the lower engine

Installation Notes and Tips

Verify the engine configuration and lower-pan fitment before installation. Clean the mating surface thoroughly, inspect the sealing surface for damage, and install with the correct gasket or seal for the application since it is not included. Confirm drain plug thread engagement and torque all fasteners evenly across the 11 mounting points to help prevent leaks.

Quality Assurance

Spectra Premium uses controlled manufacturing processes and quality checks to produce replacement oil pans that align with OE performance expectations. GMP133A is a standard replacement part for the listed Cadillac, Chevrolet, GMC, and Buick applications.