Radiator 55-57 Chevy Auto Trans Raw

The DeWitts Radiator 55-57 Chevy Auto Trans Raw is a direct-fit aluminum cooling solution engineered for 1955–1957 Chevrolet fullsize cars equipped with automatic transmissions. This single-pass radiator delivers efficient heat rejection through a center inlet design with passenger-side outlet positioning, addressing the thermal demands of stock and mildly modified classic Chevy engines while maintaining OEM-level fit and function.

Constructed from aluminum and finished in raw (unpainted) form, this radiator measures 22 inches wide by 21.25 inches high by 3.25 inches deep—dimensions verified for precise fitment in 1955–1957 Chevy fullsize vehicles. The automatic transmission outlet accommodates fluid cooling circuits without modification, and the single-pass core design prioritizes flow rate and thermal efficiency for the 265 and 283 cubic-inch engines commonly found in this generation. Raw finish allows builders to match radiator color to custom coolant systems or apply preferred coating during restoration work.

Restomod and street-rod builders working on 1950s Chevy fullsize cars rely on purpose-built cooling components to manage engine heat during summer cruising and highway runs. This radiator fills that role for owners prioritizing originality in design while upgrading cooling system reliability. Whether undertaking a frame-off restoration or converting a driver-quality original to modern drivability standards, the DeWitts direct-fit approach eliminates guesswork and fitment delays.

DeWitts has established itself as the go-to brand for period-correct and restoration-spec radiators across American muscle and classic vehicles. This 55–57 Chevy unit reflects that expertise, offering builders a bolt-in solution that respects original dimensions while delivering modern cooling performance. Part number 32-1139013A is the industry-standard identifier for this application.