JZ Diesel Performance LLC 33282 480th Avenue, Jefferson, SD 57038

"This company is professional, and does outstanding work. They took care of every problem I had going on with my semi, and the fact that they were mobile and available on the weekend just made my day. I was able to get back rolling in a couple of hours of them arriving on site of breakdown. Highly recommend!!!!"

"Called at 5:45 pm and he showed up in an hour or so. I Put GAS in my DIESEL truck at the truck stop. He had it fixed and ready in just over an hour! Running great! Thanks and I highly recommend him!"

"Would high recommend! My experience was terrific! I was traveling for work and blow a transmission. He help me get to a rental car. He even picked me up from airport. That told me the kind of guy Zach is. He help guide me in the right direction for the built trans. I did have an extended wait but this wasn’t do to him. This was do to the transmission going out on the week of Christmas. His work is top notch. I live in Ohio and I’ll probably by back when I’m ready for the bigger turbo. Great guy, Great work! Highly recommended!!!!!!"

"Zach @ JZ Diesel was able to get me some hard to find parts for my 2019 Duramax. He also answered any questions I had quickly. I live in Michigan and parts were ordered and shipped in a very reasonable time frame even with COVID slowing things up. I highly recommend these guys!"

"Fantastic diesel service shop. No job too big no job too small for these guys. Im in Utah and get treated just like family from these guys. Zach has gotten me hard to find parts in a matter of days at my door step and has the knowledge and experience to help guide me to what I need! Great people, great service!"