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Vehicle Info NeededCOLD CASE RADIATORSPART NUMBER: 359-GMT555A
Aluminum Performance Radiator 1963-1966 GM C/K Pickup
$43454
Ships on 09/28/2026
Lowest Price GuaranteeGM C/K Pickup
Aluminum Performance Radiator1963-1966 GM C/K Pickup Trucks with OE 3-core mounts 17.400 in. H x 22.750 in. W x 3 in. D
Cold Case Radiators GMT555A Features:
1963-1966 Chevy/GMC Pickup Truck Aluminum Performance Radiator. For trucks with original 3 core mounts. 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. Once painted, you'd be hard pressed to find a difference over an original versus a COLD-CASE.100 percent TIG weldedAll AluminumPolished OE style tanks16 fins per inchCorrugated fins that give more surface area and more thermal transferPressure testedFor automatic transDirect fitment for 63-66 GM TruckOld Part Number: RPE55ARadiator SpecsCore Height 17.4 inchCore Width 22.75 inchOverall Height 22.5 inchOverall Width 24.5 inchOverall Thickness 3 inchUpper HoseLower HoseTubes (2) 1.25 inch TubesReady-Fit GM Radiators
Cold Case high-quality replacement radiators for GM vehicles have two oversized rows that perform just as well as traditional 3 or 4 row radiators. Each ready-fit aluminum radiator is made to factory specs, TIG-welded, and features OEM stamping. When replacing your radiator, Cold Case will keep your GM car or truck engine running cool.
Part TypeRadiator
Product LineCold Case Aluminum Radiators for GM Vehicles
BrandCOLD CASE RADIATORS
Package Height6.5
Package Width25.75
Package Length28.0
Weight22.5 PG
Part CategoryPerformance Parts
Overall Thickness3 in (76.2 mm)
Overall Height25 in (635 mm)
Outlet Size1.875 in (47.6 mm)
Radiator Cap IncludedYes
Radiator MaterialAluminum
Inlet Size (In.)1.5
Core Height19 in (482.6 mm)
Core Width21.75 in (552.45 mm)
Row Quantity2
Overall Width26.5 in (673.1 mm)
Tube Size1.25 in (31.8 mm)
Fan IncludedNo
Transmission CoolerYes
Radiator StyleDownflow
Vendor Part NumberGMT555A
Package Qty1
Package TypeEA
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