Each Jasper engine carries a 3-year, 100,000-mile warranty. Jasper's engines go through a rigorous quality control process before ever reaching the hands of a buyer. The process involves thoroughly washing the engine internals, assembling and balancing them.
According to the Jasper website, they are able to offer their extended warranty due to the rigorous quality control implemented on each one of their engines. Before leaving the factory, several trained ASE-certified mechanics inspect the engine and ensure everything is in working order.
Their 100,000-mile warranty is also available for commercial vehicles, with a slight stipulation change. Medium and heavy-duty vehicles only have up to 18 months of coverage as oppose to 3 years.