Vendor : COLD-CASE Radiators
Product Type : Radiator
Sku : GSWT_GMT556A21-1SK
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1977-1987 Chevy/GMC Truck Aluminum Performance Radiator. This is the radiator that is 21 inches high overall. For 19 inch tall version, see GMT556AK. 1.25 inch Upper Hose and 1.5 inch Lower Hose. For other configuration, see GMT556A21K.
These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful.
When you need the biggest and best, look no further than the Cold Case Super Duty Line. All Super Duty kits include 2 row radiators with 1.25 inch tubes, aluminum fan shroud and dual 14 inch fans, flowing at 2200cfm per fan! For extreme horsepower applications or if you just want the best of the best...
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. Once painted, you'd be hard pressed to find a difference over an original versus a COLD-CASE.
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We will be temporarily closed from Monday 10th August until Friday 21st August 2026 while we relocate to our new premises and carry out our annual stock take. Our website will remain open and you are welcome to place orders during this period. However, new orders placed between 11th and 21st August will not be processed or dispatched until we reopen. Please note: Any orders currently open and already in our system will continue to be processed as normal and will not be affected by the temporary closure. If you have an urgent order or require something that cannot wait until we reopen, please contact us via our website chat or email. We will do our best to assist wherever possible. Normal service will resume on Saturday 22nd August 2026. We apologise for any inconvenience this may cause and greatly appreciate your patience and continued support while we complete our relocation and annual stock take. Thank you for your understanding and continued support.
