C4 Corvette Coolant Surge Tank

1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996

This part is a good, used C4 Coolant Surge Tank which can be installed on any of the following Corvette models:

NOTE: Picture is for illustration purposes only and does not represent the actual part you will recieve.

A coolant surge tank, also known as an expansion tank or coolant reservoir, is an essential component of the cooling system in a 1984 to 1996 Chevrolet Corvette (C4 generation). The primary function of the coolant surge tank is to manage the expansion and contraction of the engine coolant as it heats up and cools down during the normal operation of the vehicle.

The coolant surge tank is a separate container that is connected to the main cooling system. As the engine warms up and the coolant expands, the excess coolant flows into the surge tank, preventing the cooling system from becoming overpressurized. When the engine cools down, the coolant contracts, creating a vacuum that draws coolant back from the surge tank into the main cooling system.

This process helps maintain the proper coolant level in the radiator and prevents air pockets from forming in the cooling system, which can lead to overheating and engine damage. It is important to periodically check the coolant level in the surge tank and add coolant if necessary, according to the manufacturer’s recommendations.

GM Part Numbers: 10239666, 14047501, 14047502