Every new or remanufactured Goodwrench engine is made to the same exacting engineering standards that go into every new GM vehicle. They’re tested to make sure they’ll perform under the most demanding conditions and backed by a 36-month/100,000 mile transferable limited warranty. Only original replacement parts are used in every GM Goodwrench remanufactured engine. And new design enhancements and product improvements are incorporated into every remanufactured engine. Plus, service is available at over 7,000 GM dealers across the United States and Canada.