1977-1987 CHEVROLET OR GMC PICKUP TRUCK 21 INCH ALUMINUM RADIATOR AUTOMATIC TRANSMISSION COLD CASE RADIATORS FREE SHIPPING

1977-1987 Chevy/GMC Truck Aluminum Performance Radiator.

FREE SHIPPING

This is the radiator that is 21 Inch high overall. See GMT556A for the 19 Inch high version.
Lower Hose for 4WD/1.75" outlet vehicles: Gates 20694 or Dayco 70664.

These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful. Don't buy a 3 or 4 row aluminum radiator! It doesn't cool as good as these oversize 2 row models. These radiators are original appearing and have the correct stamping. 

For the Black Powder-Coated version, use part # GMT556A21B. With our Night Rider Black series, you will be hard pressed to find a difference between an original versus a COLD-CASE.

• 100 percent TIG welded
• All Aluminum
• 2 Rows of 1.25 Inch tubes
• Polished OE style tanks
• 16 fins per inch
• Corrugated fins that give more surface area and more thermal transfer
• Pressure tested
• For automatic trans
• Direct fitment for 77-87 GM Truck

Radiator Specs

• Core Height 18.8 Inch
• Core Width 28.35 Inch
• Overall Height 21 Inch
• Overall Width 34.33 Inch
• Overall Thickness 3 Inch
• Tubes (2) 1.25 Inch Tubes
• Upper Hose 1.5 Inch
• Lower Hose 1.75 Inch
• Trans Cooler Fitting: 5/16" Inverted Flare