15in Polished Stainless Overflow Tank

The 15in Polished Stainless Overflow Tank by Racing Power Co-Packaged is a precision cooling system component engineered for street and high-performance vehicle builds. This quality overflow tank serves as a coolant reservoir and a critical pressure regulation point that prevents air locks and maintains stable coolant circulation during thermal cycling.

Constructed from polished stainless steel, this 15-inch tank resists corrosion and maintains its finish over years of use, avoiding the discoloration that plastic tanks develop under UV exposure. The design accommodates standard coolant hose connections and integrates seamlessly into most radiator cooling loops, allowing coolant expansion and contraction without introducing air into the system—a common source of overheating and cavitation damage in modified engines.

Builders focused on street rods, restorations, and turbocharged swaps benefit most from this tank's durability and show-quality finish. Weighing just 2.09 pounds, its compact profile fits tight engine compartments on custom chassis and retrofit applications without compromising underhood space. Installation requires standard hose barb fittings and basic plumbing knowledge; most setups integrate the overflow tank into the upper radiator outlet.