For over 30 years, J & R has been seen as a leader in the engine rebuild and repair business.

Our considerable experience in engine service and rebuild has earned us a reputation for providing quality service to the Oil and Gas Drilling Industry.

We are a reliable independent source for service and replacement engines and specialize on CAT diesel and gas engines and generator sets. J & R stand behind all their work and offer warranties on the engines and generators sets we rebuild.

Our service offerings include:

  • Quality Rebuilt, Low Hour, and Used Caterpillar Power
  • CAT engine expertise
  • Field Service
  • Exchange engines
  • Compressor rebuilds and make ready
  • Cylinder head rebuilding
  • Load testing capabilities
  • Used parts
    • Caterpillar
    • Waukesha
  • New and reconditioned parts
    • Caterpillar
    • Waukesha



J & R currently employs 30 professionals made up of eight lead engine technicians with over 130 years comprised experience, a parts department with over 30 years experience, and a support team with 40 years in the industrial business.


J & R is located in a 25,000 square foot facility on nine acres in Oklahoma City, Oklahoma. This facility supports areas for vat and clean after tear down, a 6000 square foot parts department, assembly and re-work, cylinder head rebuild that includes surfacing capabilities and a Serdi 100 valve machine, full dyno testing, and a separate clean and paint room.


Since its inception in October of 2004, J&R has been striving for the highest quality backed with the strongest integrity in the rebuild and repair of industrial engines. Built on a foundation of an employee base and group of knowledge that dates back to 1976, J & R Industrial continues to excel in customer service and satisfaction.