Radiator Overflow Tank 2 in x 17in Black Stainles

The Radiator Overflow Tank 2 in x 17in Black Stainless by Specialty Products Company is purpose-built for marine and boating applications where engine cooling system reliability demands proven engineering. Anyone who has spent serious time on the water knows that engine overheating can turn a day fishing or cruising into a costly emergency. This 26-ounce capacity overflow tank intercepts coolant expansion from your marine engine, preventing pressurized coolant loss and maintaining optimal operating temperatures in demanding saltwater or freshwater conditions.

Constructed from stainless steel with a durable black powder-coat finish, this overflow tank resists corrosion from salt spray, moisture, and UV exposure—critical factors for any vessel. The tank features dual 1/4-inch hose barb connections (inlet and outlet) that integrate seamlessly into existing cooling systems without requiring extensive modification. At 17 inches tall and 2 inches in diameter, the compact profile fits snugly in engine compartments with spatial constraints typical of recreational and commercial boats. The 2.15-pound weight ensures minimal impact on vessel balance and performance.

Experienced boaters, marine technicians, and engine builders trust this overflow tank for inboard engines, outboards with closed cooling systems, and high-performance marine applications. Installation is straightforward: connect the inlet hose from the radiator cap or thermostat housing and the outlet line back to the radiator, allowing the tank to capture excess coolant and prevent air locks. For anglers running long days in direct sun or those pushing their engines hard in competitive conditions, proper coolant management translates to fewer breakdowns and more time on the water. This tank is compatible with freshwater and saltwater systems—order the Radiator Overflow Tank 2 in x 17in Black Stainless (SKU: SPC9975BK) for dependable marine cooling protection.