Nissens Coolant Expansion Tank

The Nissens Coolant Expansion Tank (also called a coolant reservoir, coolant overflow tank or radiator expansion tank) is a key part of the engine cooling system. It gives heated coolant room to expand. It keeps the system at the right fluid level and helps maintain stable pressure while the engine runs.

Key Features:

• Made to replace the original expansion tank and restore proper cooling system function
• Holds reserve coolant and gives it room to expand as engine temperature rises
• Helps remove air from the cooling circuit for steadier operating temperatures
• Built from durable, heat-resistant and coolant-resistant materials for long service life
• Made by Nissens, a Danish thermal management specialist that supplies cooling parts to the automotive aftermarket

A cracked, leaking or discolored expansion tank can cause coolant loss and overheating. Replacing it helps protect the engine and keeps the cooling system reliable. Each item in this product line is made as a direct-fit replacement for its specific application. Check the individual listing for exact specifications and included components.