J&J and Jasper Engines

Jasper Engines

Diesel Engines

JASPER remanufactures a complete line of domestic and import diesel engines for on-highway, off-road and even industrial equipment applications. 


Ask J&J for information on JASPER's complete line of front and rear axle differential assemblies. Many popular applications are available for immediate exchange and improvement.


Manual or Automatic transmissions and transfer cases are remanufactured by JASPER. J&J is certified to handle any transmission installation for whatever your driving needs or applications.

Jasper Process

From Cleaning to Quality Control to the Warranty, Jasper Engines follow a strict process for the Engines, differentials and Transmissions exchanges. Ask J&J about the extensive "Do it Right" process for every Jasper Engine.

Stern Drives

Every sterndrive from JASPER receives (where applicable to unit design) all new bearings, gaskets, U-joints, seals, upper water pump housing, and water pump impeller to assure the performance and reliability of your remanufactured sterndrive*

Why Jasper?

Jasper has been remanufacturing quality products since 1942. They are the nation's largest remanufacturer of engines, transmissions, differentials, and stern drives. Jasper procedures and processes are designed to produce a quality component that will meet or exceed expectations.

J&J and Jasper Engines

J&J is an authorized installer of JASPER engines and transmissions. Learn how you can make an economical, sound decision that will enable you to enjoy your present vehicle for years to come. 

J&J will help you all along the way.

Jasper Engines & Transmissions