This lightweight aluminum coolant header tank (expansion or fill tank) has barbed inlet and outlet fittings for use with rubber coolant hose. The bottom inlet fitting accepts 3/4" ID hose, and the top outlet accepts 3/8" ID hose. The vent (overflow) outlet accepts 5/16" hose. The tank has a built-in mounting bracket on the back. Accepts any standard automotive radiator cap. The obp exclusive "Dark Matter" coating provides a tough, matte black finish that looks great.
A header tank is recommended for racing applications where the top of the radiator is mounted lower than the top of the engine. Mounting the tank higher than the engine insures a complete fill and provides an air space for expansion.
Dimensions:
Width: 7 3/4"
Diameter of can, without fittings: 4"
Depth that bottom barb (3/4" OD) protrudes from can: 1 3/4"
Capacity: 1.5 quarts
Maximum recommended pressure cap: 30psi
