All original dates are available. Most common dates, as Harrison tanks were run in batches and dated, were J (Sept), M(Dec) or C(Mar).
Specify serial number when ordering for correct date code. Corvette expansion tanks are date coded based on a production of 1-2 months prior to the assembly date of your Corvette. Made in USA.
Note: Original 1961-1964 Corvettes expansion tanks came with pressed-in tubes. The tubes became an issue as wrestling with heater hose connections would often break loose the connection and cause the tank to leak. GM fixed this problem with their later design and service tanks. All tanks are pressure tested prior to shipping - it's the responsibility of the customer for correct hose installation to ensure the pressed-in tubes do not become damaged. Zip recommends using a light grease to help slide the hose into position when installing on the tube. To eliminate leakage problems and provide a worry-free installation, Zip's replacement Corvette expansion tanks feature welded tubes.
|Model Year||1961, 1962|
- WARNING: Cancer and Reproductive Harm - www.p65warnings.co.gov
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.