Dorman 82600 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap Replacement

Replace a cracked or missing coolant reservoir cap with a direct-fit Dorman solution built for the specified applications. Dorman 82600 is a black plastic twist-on cap with a 54.66 mm diameter, made to restore a secure seal on the engine coolant reservoir.

Compatible With select Jeep and Dodge applications, including 1987-1990 Jeep Cherokee, 1987-1990 Jeep Comanche, 1987-1990 Jeep Wagoneer, 1991-1992 Jeep Comanche, 1996 Jeep Grand Cherokee, and 1990 Dodge Monaco. If you are searching for a Jeep Cherokee coolant reservoir cap replacement or a Dorman 82600 cap for a Jeep Comanche, this part matches the listed fitment.

Key Features

• Direct replacement engine coolant reservoir cap
• 54.66 mm diameter for the listed applications
• Black plastic construction
• Twist-on attachment type for a secure fit
• Non-vented, non-pressurized design
• Fits the specified Jeep Cherokee, Jeep Comanche, Jeep Wagoneer, Jeep Grand Cherokee, and Dodge Monaco applications

Detailed Description

Dorman 82600 is engineered as a straightforward replacement for a damaged or lost coolant reservoir cap. Its twist-on design and 54.66 mm diameter support proper closure of the reservoir on the listed vehicles, helping maintain the cooling system’s sealed condition. This part is a practical choice when you need a replacement coolant reservoir cap for a 1987-1990 Jeep Cherokee, a 1991-1992 Jeep Comanche, or a 1996 Jeep Grand Cherokee.

This part cross-references 52006707 for the same application. The compact black plastic design measures 1.247 in. long and 2.152 in. wide, making it a direct service part for the specified fitments. Search terms such as Dorman 82600, Jeep Cherokee coolant reservoir cap, and Jeep Grand Cherokee reservoir cap all point to this replacement.

What It Helps Address

• Cracked coolant reservoir cap
• Lost or missing reservoir cap
• Improper reservoir sealing at the cap
• Routine replacement of a worn twist-on cap
• Fitment-specific replacement needs for Jeep and Dodge cooling systems

Installation Notes and Tips

Confirm the reservoir opening diameter before installation and verify the cap style matches the original twist-on design. Inspect the reservoir neck and sealing surface for damage before installing the new cap. For best results, compare the old cap to Dorman 82600 and confirm the 54.66 mm diameter against the vehicle application.

Quality Assurance

Dorman manufactures replacement parts to match the original application requirements for listed vehicles. This cap is built as a direct replacement for the specified cooling system fitments and is backed by Dorman’s product engineering standards.