Dorman 090-078CD Transmission Drain Plug

Dorman Transmission Drain Plug for Jeep Applications

This Dorman transmission drain plug is a direct-fit replacement for specified Jeep applications, including Cherokee, Grand Cherokee, Comanche, and Wagoneer models. Built from steel with a yellow finish, it matches the original plug’s dimensions and function for a precise service fit.

Part number 090-078CD includes a gasket/seal and uses a 14 mm hex head for service access. It is a specific-fit transmission drain plug for Jeep owners replacing a worn, damaged, or leaking drain plug on the correct application.

Key Features

• Direct replacement transmission drain plug for specified Jeep vehicles
• Steel construction for dependable service use
• Hex head design with 14 mm wrench size
• Thread diameter 10 with coarse thread type
• Gasket/seal included for proper sealing at the drain point
• Yellow finish for easy identification during service
• Part number 090-078CD for ordering and cross-reference

Application Details

Fits 1987-2001 Jeep Cherokee, N/A. Fits 1993 Jeep Grand Cherokee, N/A. Fits 1987-1992 Jeep Comanche, N/A. Fits 1987-1990 Jeep Wagoneer, N/A. This part cross-references 83504041 for the same application.

Use this transmission drain plug when servicing the transmission pan on the listed Jeep models. The OE-style dimensions help maintain the original sealing and thread engagement, which is important for leak control and repeatable maintenance service. Dorman 090-078CD is built to match the original plug’s function on the specified vehicles.

Common Problems This Part Can Address

• Transmission fluid leaking from a damaged or worn drain plug
• Rounded or stripped hex head that makes removal difficult
• Improper sealing at the drain point after prior service
• Corrosion or wear on the original steel plug
• Need for a correct replacement during transmission maintenance

Installation Notes and Tips

Confirm vehicle fitment by year, make, and model before installation. Inspect the drain opening and sealing surface for damage, and replace the gasket/seal if the original sealing surface is compromised. Use the correct 14 mm wrench size to avoid rounding the hex head during removal or tightening.

Quality Assurance

Dorman manufactures this drain plug from quality materials to support reliable performance and durability in service. The part is engineered to match the original plug’s dimensions and function on the listed Jeep applications.