Welcome to Dubuque Diesel Injection Service. We specialize in the sales and repair of diesel injection pumps, diesel injectors, and turbochargers. Our goal is to provide simply the highest quality diesel parts and service to our customers. Since 1987, we have been fixing and improving the performance of diesel agricultural and heavy equipment as well as diesel trucks and cars.

Our highly skilled diesel technicians retain over 100 years combined experience in the diesel field and are Factory Certified to troubleshoot, service, and repair diesel fuel systems. We carry an extensive line of OEM replacement parts as well as high performance parts for Chevy / GMC Duramax, Dodge Cummins, and Ford Powerstroke trucks.  Furthermore, we have exactly what you need to fix or increase the performance of your John Deere, Case IH, Allis Chalmers, or any other make of tractor, combine, or farm equipment.  Supporting our technicians is our extensive inventory and services offered which includes the following:

  • Instantly Exchange Worn Diesel Injection Pump, Injectors, or Turbo For New/ Reman Unit
  • Drive In Diesel Diagnostics, Diesel Repair, & Free Repair Quotes and Estimates
  • Fast In House Testing & Repair of Your Diesel Injection Pump or Diesel Injectors
  • Thousands of Diesel Parts & Products In Stock To Get What You Need Quickly