DeWitts Radiator, LLC. (DRL) warrants all aluminum radiators to be free from defects in materials and workmanship for as long as you own the vehicle in which it was originally installed. This warranty is extended only to the first purchaser of any such radiator at retail. Proof of purchase must be provided in the way of a sale receipt from DRL or an authorized dealer. If the radiator is used in any racing application this warranty is considered null and void.