Great experience! Very professional. These guys really know what they’re doing.

I have been using Duernberger Diesel Service for my last two trucks. They have performed many services from simple maintenance to complex repairs and upgrades on my vehicles. Without a doubt I can say that they are the most knowledgeable and customer oriented shop that I have been to.

I was looking for a rare part for a fuel system build on my Ford Super duty 6.7L Turbodiesel. It was a hard-to-find aftermarket part to go on the fuel pump. I had ordered it from another vendor, and found out a few days before my build was scheduled at the shop that it would not arrive in time. The other vendor promised a delivery date, and sold me a part they didn't have, and had no idea when it would come back in stock or ship out. I started calling around in a panic, and the great crew at Duernberger Diesel saved the day!!!!! They not only had the part in stock, but overnighted it to me as well so I had it in time for the build. Even though it was like, a $75 part, it would have held up a project costing thousands, and I would have lost even more money having the work truck down and out. Having staff like Duernberger go out of their way to provide excellent customer service is getting more and more rare these days. But, it makes a difference. I'll never do business again with the previous failed vendor, who basically blamed their parts supplier and told me to go pound sand. Thanks again Duernberger, you guys are awesome, and I'll be back!!!

Great people to deal with! Got my parts out the door same day and arrived 2 days later and I’m stayed away!! Very good work over there! Thank you will be looking forward to shopping more.

The first time I met with Kyle after having work done at Huckstorf diesel and I was disgusted with there work. Kyle took a look at my truck and found some issues and made my truck run the best it ever had. Most of the problems were in programming set up. I have used Kyle ever since. I would and have recommended his business to many people since Thanks Fred

Kyle and Eric have done an incredible job building the best all around diesel shop in Wisconsin! They have done numerous jobs for me from a simple oil change all the way to building a complete competition sled pulling truck. They are the real deal!!

I was looking to get my motor built in my Cummins and after speaking to Kyle I knew off the bat he was the man for the job! I had a rough idea of what I wanted and we worked together to make it happen! He made great recommendations and never steered me wrong! It was a great pleasure to work with these extremely talented and knowledgeable guys! Thanks again

Kd customs has always treated me great! The team members there are more than helpful with anything I’ve needed from parts, to service, to a performance engine build for my pickup. I have no problem recommending anyone to them for parts or service!

Excellent service!! I order the part I needed from another site and then got a back order notification so I found the part I needed here… called to make sure it was available. I can’t remember who I talked to but they were very professional and a huge help. I placed the order online with no issues and received it before expected which was a huge plus since I was in a rush for it.

Duernberger Diesel is my go to place for any diesel repairs and service. I've had several repairs done by them all in a very timely manner, with absolutely no corners cut. You can always expect the job to be done right the first time for a reasonable price.