West Coast Diesels and Jasper have been working together for years, supplying our mutual customers with high quality re manufactured engines, transmission, differentials, and air/fuel components. Jasper won our business by being honest and always ready to make it right. There are a lot of manufacturers of diesel parts out there, but Jasper stands behind each and everyone of their parts. Please ask us how Jasper and West Coast Diesels can keep your diesel truck on the road.