Dorman Non-Pressurized Coolant Reservoir Tank

The Dorman non-pressurized coolant reservoir tank, also called a coolant overflow tank, coolant expansion tank or antifreeze recovery bottle, holds excess engine coolant as it expands when hot. It returns that coolant to the cooling system as the engine cools. A cracked, leaking or discolored reservoir can cause coolant loss and overheating, so replacing it helps keep the cooling system working correctly.

Key Features:

• Non-pressurized design that serves as an overflow and recovery container for the cooling system
• Made from durable molded plastic that resists heat and engine bay chemicals
• Replaces a cracked, warped, stained or leaking original reservoir
• Molded with fill level markings to make coolant checks easier
• Designed to match the original equipment form, fit and function for straightforward installation

Dorman is a long-established aftermarket supplier known for engineering replacement parts that solve common failures. Each reservoir in this product line is built to restore reliable coolant capture and recovery. Choose the specific part number for your application from the options listed on this page.