About Polk Diesel & Machine:

    Polk Diesel and Machine is serious about your business. We’ve been repairing and maintaining diesel engines since 1962; our senior mechanics and machinists are factory trained to do it right the first time.

You won’t find anyone more dedicated to meeting your needs with expert service, building engines second to none and with prices to fit your budget.

We will match or beat any of O.E.M. distributor’s pricing while providing a superior engine.

We are the authorized dealer for: Cummins, Detroit Diesel, Deutz, Hatz, Isuzu, John Deere, Kubota, Perkins, Yanmar & Allison Transmissions.

We offer competitive rates, quality service, and parts with skilled, factory-trained technicians.

Founder, Al Polk
Founder: Al Polk

Diesel Engine Repair and Parts. Trucks, Farm, RVs, marine, Madison, Green Bay, Wisconsin Polk Diesel

Makes & Models:

We can fix almost any diesel engine – from industrial to farm to your favorite pickup truck or RV. We repair, maintain and service medium and heavy duty trucks including, snow plows, buses, fire trucks, redi mix trucks, garbage packers, gravel trucks, and more.

  • Cummins
  • Caterpillar/Cat
  • Detroit
  • Deutz
  • Duramax
  • Perkins
  • IH
  • John Deere
  • Kubota
  • Mitsubishi
  • Isuzu
  • Yanmar
  • Mack
  • Hatz
  • Case
  • Allis
  • Komatsu
  • Ford
  • GM
  • Dodge
  • Kohler
  • others...

We RARELY meet an engine we can’t fix.



Polk Diesel Madison
(608) 244-4784
5900 Haase Road
DeForest, WI 53532

© Polk Diesel & Machine