19in. x 24in. x 3in. Radiator GM Aluminum

The 19in. x 24in. x 3in. Radiator GM Aluminum (ClassicCool model 1-25202-X) is a purpose-built cooling solution engineered for General Motors vehicles requiring efficient heat rejection and reliable temperature management. This aluminum radiator features driver-side inlet and passenger-side outlet configuration, delivering optimal flow characteristics for sustained cooling performance across varied driving conditions.

Aluminum construction provides superior thermal conductivity compared to traditional copper-brass designs, enabling faster heat transfer while reducing overall weight—a critical advantage for both street and performance applications. The 3-inch core depth balances cooling capacity with compact installation requirements, fitting standard engine bay dimensions without extensive modification. At 14.2 lbs, this radiator minimizes added mass while maintaining structural integrity under sustained high-temperature operation. The natural finish resists corrosion typical of aluminum cores exposed to coolant systems and environmental contaminants.

This radiator addresses the needs of GM owners undertaking engine swaps, upgrades, or restoration projects where OEM cooling inadequacy or part availability creates obstacles. Whether cooling a stock rebuild or a modified engine requiring enhanced heat dissipation, the dimensionally specific inlet/outlet positioning ensures direct fitment and eliminates adapter complications. The aluminum core resists scaling and deposits that degrade cooling efficiency over extended service intervals.

ClassicCool radiators are recognized in the GM restoration and performance community for engineering focused on modern thermal efficiency standards. This 19x24x3 configuration represents the specification range most commonly specified for mid-size GM platforms where factory cooling systems require upgrading or replacement due to engine modifications, age-related degradation, or custom build requirements.

Part number 1-25202-X (SKU GRI125202X, UPC 766897300219) ensures accurate identification and compatibility verification before purchase. Installation requires verification of hose routing, thermostat housing orientation, and coolant capacity to match the new radiator's specifications.