Brand: Optimum Balance Products (OBP)
This lightweight aluminum coolant header tank (expansion or fill tank) has 10mm barbed inlet and outlet fittings for use with 3/8" rubber coolant hose. The vent outlet accepts 5/16" hose. The tank has built-in side mounting brackets and accepts a standard radiator cap (sold separately).
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. Accepts any standard SAE "A" size automotive radiator cap such as our Radiator Caps, sold separately.
Measures 150mm (6") on each side (not including fittings, neck, or brackets). Extra-large 3 liter (3.1 qt) capacity. Maximum recommended pressure cap 30psi.