84-89 Direct Fit Aluminum Radiator

Direct Fit high performance aluminum Corvette radiators are available for all C4 Corvette models. Each radiator is designed to fit into the factory mounting, without any modifications. And your 1984-1989 Corvette will no longer be plagued with plastic end tanks and seals that are prone to leaking.

Direct Fit radiators are completely manufactured and assembled right here in the United States. Along with that comes the quality that you would expect from a company that takes pride in turning out Corvette radiators. Each Direct Fit Corvette radiator begins life as an aluminum core with two 1" wide cooling tubes. This configuration more than doubles the cooling capacity by increasing the "tube to fin" contact area over replacement 4-row copper radiator. This can only be achieved with an aluminum radiator since the aluminum material does not dramatically affect the radiators weight. Tanks are press formed and inlet/outlets are correctly configured for a drop-in installation. Each core is then brazed in a controlled atmosphere furnace; which eliminates the need for epoxy, ensuring leak free, and trouble free service for many years to come.

Are two rows really better than three or four? In the era of copper and brass radiators, more rows meant better cooling due to increased surface area. However, with aluminum radiators, the game has changed. Engineers found that reducing fin height and using wider tubes increased tube-to-fin contact, enhancing performance while cutting weight. The U.S. standard for performance aluminum radiators is 1" wide tubes, while imported radiators often use smaller 16mm tubes. This means a 2-row aluminum radiator with 1" tubes offers better cooling than a 3-row imported design.  When researching, focus on tube width for a clearer picture of efficiency and origin.

Note: First design AC condensers used in 1984 & early 1985 will have to be upgraded to the 1986 design in order to allow clearance for this radiator due to it's thicker design. This radiator includes its own mount cushions as the factory 1984-1989 Corvette mounting cushions will not work with the Direct Fit aluminum radiator.

Dewitts aluminum radiators are warrantied to be free from defects in materials and workmanship for as long as you own the Corvette in which it was originally installed. This warranty is extended only to the first retail purchaser of any such radiator. Proof of purchase must be provided in the way of a sale receipt from DRI or an authorized dealer. If the radiator is used in any racing application this warranty is considered null and void.

Radiators used without an adequate proportion of premium quality antifreeze coolant and distilled water are not covered by this warranty. DRI radiators require a correct proportion of quality coolant, which contains aluminum corrosion inhibitors in the formula and distilled water. All Corvette cooling systems must include a radiator pressure cap with the proper pressure rating. Distilled water and premium antifreeze must be used with all Corvette aluminum radiators!

Dewitt Item Number 32-1139084A