Dorman 924-1059 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap Replacement

Restore a secure seal on the cooling system with this Dorman engine coolant reservoir cap. Part number 924-1059 is a direct replacement for a cracked, missing, or worn coolant cap, built with a threaded-on twist design for a precise fit.

Compatible With select vehicle applications that use a 2 in black coolant reservoir cap, including Chrysler, Dodge, and Jeep models that cross-reference this style of cap.

Key Features

• Direct replacement engine coolant reservoir cap
• Threaded-on twist attachment for secure engagement
• 2 in diameter with a compact 2 in length and 0.81 in width
• Constructed from metal, plastic, and rubber materials
• Black and white finish
• Non-pressurized design with no vent and no pressure release lever
• Dorman 924-1059 for targeted cooling system service

Detailed Description

Dorman 924-1059 is engineered to replace the original engine coolant reservoir cap when the factory part is cracked, lost, or no longer sealing properly. The twist-on, threaded attachment helps it seat correctly on the reservoir, while the non-pressurized, non-vented construction matches applications that require this cap style. For Chrysler, Dodge, and Jeep cooling system repairs, this cap provides a straightforward replacement option when the original reservoir cap no longer performs as intended.

This part cross-references Chrysler/Dodge/Jeep applications using OE-style cap numbers such as 97223011 and 8972230111 for the same application.

What It Helps Fix

• Coolant reservoir cap that is cracked or damaged
• Cap that no longer threads on securely
• Loss of reservoir sealing at the cap
• Cooling system service after cap replacement is needed
• Fitment issues on vehicles using this 2 in twist-on cap style

Installation Notes and Tips

Verify the reservoir opening, thread style, diameter, and pressure specification before installation. Match the cap to the original design on the vehicle and inspect the reservoir neck for cracks or deformation that could affect sealing. Confirm the cap seats fully and turns smoothly by hand.

Quality Assurance

Dorman manufactures replacement parts to match original equipment form and function for specific applications. Part number 924-1059 is built as a direct replacement coolant reservoir cap for service work on the correct Chrysler, Dodge, and Jeep applications.