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65 396, 67-69 L88, 70-72 ZR1 Reproduction Aluminum Radiator

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100% correct reproduction radiator features original-design core, tank and top and bottom plates.

This radiator was first used on the 1965 396 big block Corvettes. This option (L78) was late in coming out and was not available until about February of 1965. The first few cars used an early version (GM 3005936), which features a straight upper hose connection from the small block radiator. The tube was changed to a curved upper neck about VIN number 16000. GM then changed the part number to 3007436 and it was used on the majority of the 2,157 1965 big blocks produced.

The same (3007436) radiator returned in 1967-1969 for the L88 option. The small block ZR-1 option cars and the LT-1 with the heavy-duty (M22) transmission was also equipped with this radiator. Correct part number (3007436) is stamped into top plate along with correct date code to match your Corvette. Made in USA.

Specify serial number when ordering for correct date code. Radiators are date coded based on a production of 1-2 months prior to the assembly date of your Corvette. If you desire a specific date code - please call a Zip Corvette salesperson (1-800-962-9632) to make a specific request.

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 32-955

(GM Part 3007436)

usaiconThis item is proudly Made in the USA

Technical Articles:

Model Years

More Information
Generation C2, C3
Model Year 1965, 1966, 1967, 1968, 1969
Additional Item Information
  • OE GM PART #: 3007436 *GM part # provided for lookup purposes only.
  • Manufacturer Part Number: 32-955
  • P65 Warning WARNING: Cancer and Reproductive Harm -


Based in Michigan, DeWitts Radiator is the only aftermarket radiator manufacturer in the US which owns an aluminum Nocolok blazing furnace. With a twelve-person crew, DeWitts builds custom and direct fit radiators for 1955-present Corvettes from start to finish at their Howell, MI plant. No epoxy is used in the making of their radiators, and their construction methods eliminate seams and possible leak points. Their Lifetime Warranty is industry leading, and Zip only recommends DeWitts Radiators to our customers.

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