Custom Aluminum Radiator Kit 19 x 31 Three Row

The Custom Aluminum Radiator Kit 19 x 31 Three Row by NORTHERN RADIATOR is engineered for serious engine builders and performance enthusiasts who demand superior cooling capacity without the weight penalty of traditional copper-brass units. This three-row configuration addresses the thermal demands of high-output engines, upgraded turbocharged platforms, and vehicles running in sustained high-temperature conditions. Whether you're building a street performance engine, preparing for track duty, or upgrading a vintage restoration project, this aluminum radiator core delivers the heat rejection modern powerplants require.

Aluminum construction provides nearly 50% weight savings compared to traditional designs while enhancing heat transfer efficiency through expanded fin density and optimized water jacket design. The three-row core increases surface area for superior convection, allowing coolant to release heat more effectively across the entire radiator face—critical when managing 450+ horsepower or sustained driving in desert heat. At 26 pounds, this aluminum assembly reduces nose weight in front-engine applications, improving handling balance and reducing suspension strain. The compact 19 x 31-inch core dimension fits modern engine bay constraints while maintaining the volumetric cooling capacity of larger vintage designs, making it ideal for restomods, engine swaps, and compact performance builds.

Mechanics and fabricators specify this kit for engine builds where OEM radiators prove insufficient, particularly in turbocharged conversions, high-compression stroker builds, and vehicles relocated to hotter climates. The 22.5 x 7.25 x 34.5-inch envelope allows flexible mounting in custom applications while maintaining adequate clearance for electric fans, intercoolers, or auxiliary coolers. Installation requires basic plumbing skills and hose routing assessment, though professional installation ensures optimal coolant flow path and radiator support bracket integration. This Northern Radiator unit accepts standard inlet/outlet connections, making it compatible with existing cooling system infrastructure in most custom builds.