Dorman 265-580 Transmission Oil Pan

Dorman 265-580 Transmission Oil Pan

Dorman 265-580 is a steel transmission oil pan engineered for select General Motors vehicles with a service-friendly drain plug, level check plug, new magnet, filter, and gasket. It is built to replace the original pan on applications where fluid service can be difficult and messy, including Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac STS models.

Key Features

• Steel construction with a gray finish for standard replacement use
• Drain plug included for cleaner transmission fluid service
• One-piece pan and one-piece gasket configuration
• New magnet included to replace the OEM magnet during service
• Filter and level check plug included for a more complete initial installation
• 10 mm drain thread diameter
• Fits select Chevrolet, GMC, and Cadillac applications

Detailed Description

This Dorman OE FIX transmission oil pan is designed to replace the factory pan on select GM cars and trucks where routine transmission service can be difficult because the original pan must be lowered carefully to avoid spilling fluid. By adding a drain plug, Dorman 265-580 makes draining transmission fluid more direct and controlled. The steel pan also includes a new magnet, filter, level check plug, and gasket to support a straightforward first installation. It is a practical replacement for Chevrolet Silverado 1500 and GMC Sierra 1500 service needs, as well as Cadillac STS applications with a level control plug.

What It Helps Address

• Transmission fluid spills during pan removal
• Worn or damaged original transmission pan
• Fluid leaks at the pan gasket surface
• Contamination from a missing or worn magnet
• Delayed or inconvenient routine transmission service

Installation Notes and Tips

Verify vehicle fitment before installation. This part fits 2019-2021 Chevrolet Silverado 1500, 2019-2021 GMC Sierra and Sierra 1500, 2020-2021 Chevrolet Cheyenne, and 2006-2009 Cadillac STS with level control plug. Use the included gasket and level check plug during installation, and confirm proper fluid level after service. This part cross-references GM OE numbers 24235511 and 24239530 for the same application.

Quality Assurance

Dorman designs this transmission pan as a precision-engineered OE-style replacement for select GM vehicles. Part number 265-580 is built to restore serviceability and help maintain a cleaner transmission service process on compatible Chevrolet, GMC, and Cadillac applications.