Overflow tank with dome end Rocket 88 Details of the radiator

Details of the radiator

or at the valve itself

Product images reflect past builds and serve to illustrate various elements of design

2-5/8" diameter

5000 1989-1990 Audi 100

Overflow tank with dome end Rocket 88 Details of the radiatorBlack over brass overflow tank on 2" diameter with dome end and adjustable mounts. Made in the USA Here is how it works should the system pressure exceed the caps rating, the spring will compress and fluid will flow through the upper tube to fill the expansions tank. In the event the recovery tank reaches capacity, the fluid will find the second tube and exit to the street. A vacuum will draw the coolant back into the cooling system as the engine