 Jasper Engines and Transmissions. Quality, remanufactured engines, transmissions, and differentials with a three-year, 100,000-mile warranty. Now, this warranty, of course, is covered at the place of installation. But did you know it's also covered throughout the country at other Jasper dealers? And the warranty is transferable. If you decide to sell your car or your light truck during the three-year, 100,000-mile Jasper warranty,