Your experts for diesel engine repair & parts

Palmer Johnson Power Systems Sun Prairie, WI location is an authorized service provider for several makes & models of Diesel Engines including:



Engine Service for your off-highway equipment

If your equipment's engine ins't doing the job, let PJ Power service your equipment end engine today. We offer product and technical support as well as Service all brands and all types of industrial diesel engines 24/7.

  • Cummins
  • Caterpillar/Cat
  • Deutz
  • Perkins
  • Kubota
  • Mitsubishi
  • Isuzu
  • Yanmar
  • Scania
  • John Deere Diesel
  • Komatsu
  • Hatz
  • IH

Parts for your Engine Repairs

  • Deutz
  • Hats
  • Cummins

Learn more about the Palmer Johnson Power Systems joining forces with Polk Diesel READ MORE>>

Factory Trained Engine Technicians

Parts & Product Support

24/7 Support

Quick Turn-Arounds

Engine Lines

"Tom Adams is amazing - he always helps me and makes me look good!!! Love working with Tom!!!"

Charlene R. – Cullum & Brown