Runability Testing
Gas Engines
Daily driver, heavy hauler, performance oriented, marine and even industrial, JASPER has the application to replace your tired old gasoline engine.
Transmissions
JASPER remanufactured automatic and manual transmissions and transfer cases are available for a full range of driving needs and applications.
Differentials
Choose JASPER for a complete line of front and rear axle differential assemblies. Popular applications are available for immediate exchange.
Diesel Engines
JASPER remanufactures a complete line of domestic and import diesel engines for on-highway, off-road and even industrial equipment applications.
Marine Products
Whether it’s an I/O engine, sterndrive, outboard lower unit or outboard powerhead, Jasper Marine has the remanufactured product for you.
Who We Are
JASPER has been remanufacturing quality products since 1942 and today we are the nation's largest remanufacturer of gas and diesel engines, transmissions, differentials, rear axle assemblies, air and fuel components, marine engines, sterndrives, performance engines, and electric motors.
JASPER's 2,300+ Associates and 50 branch and distributor locations are committed to providing you with the perfect product. Our processes and procedures are designed to produce a quality component that will meet or exceed the expectations of every one of our customers.
And, we back up that commitment with a 3 year/100,000 mile warranty on our gas engines, transmissions and differentials. That means you can have confidence in your vehicle's performance for years to come, and confidence in JASPER for life.
Click here for a full warranty disclosure and coverage on our entire product line.
See why JASPER is the best alternative to extend the life of your vehicle