SKU: CCRGMB57AK
UPC: 846861013137
MPN: GMB57AK
The 84-87 Buick Regal Grand National Radiator AT from Cold Case Radiators is a purpose-built cooling solution designed specifically for the second-generation Grand National platform. This radiator is ideal for owners upgrading cooling systems on 1984–1987 Buick Regal Grand Nationals equipped with automatic transmissions, ensuring optimal performance during sustained driving and weekend cruises.
Constructed with all-aluminum cores and tanks, this radiator significantly reduces weight compared to vintage copper-brass designs while enhancing heat transfer efficiency. The automatic transmission (AT) variant features integrated transmission oil cooler passages, which help maintain stable ATF temperatures under load. This design addresses the thermal demands of high-performance Buick engines, providing the cooling capacity serious drivers expect from a premium aftermarket radiator.
Aluminum construction resists corrosion and pairs seamlessly with modern coolant formulations, eliminating the maintenance headaches associated with older radiators that are prone to scale buildup and leaks. Whether restoring a stock Grand National or building a modern restomod, this radiator fits the factory envelope while delivering greater surface area for superior thermal performance.
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