About Us

DK Diesel began doing business in 1973. Owners, John Dagel and Al Kasperson operated out of a small building in Watertown, SD until March 1984 when growth required a move to their current larger facility. Two additional stalls were added in 1992 to accommodate the continued growth. In May of 2000 the current owners, Rex Gerber, Jr. and Blaine Wollman purchased DK Diesel from Dagel and Kasperson. Together they brought 22 years of combined experience to the company. DK Diesel currently employs 7 full-time employees at its Watertown location. In 2003, Rex & Blaine decided to expand DK Diesel’s service area and purchased a fuel injection shop in Montevideo, MN. DK Diesel of Montevideo currently employs 3 full-time technicians and offers the same quality of workmanship customers have come to expect at the Watertown location.

In the spring of 2008, Rex and Blaine decided to take on two more large projects that would broaden the growth and coverage area of DK Diesel. The first project was a 5000 square foot addition to the Watertown location. Two additional stalls were added that would allow large farm equipment access to the shop to be easier repaired.

The second project was the purchase of a diesel shop located in Fort Dodge, Iowa. DK Diesel of Fort Dodge (formerly Midwest Diesel) employs 6 full-time employees and provides the same quality workmanship as DK Diesel’s other two locations.

DK Diesel is built on one basic idea, and that is to provide area diesel owners with service that is truly exceptional.

With three locations in the Midwest, we know DK Diesel can provide you with any diesel need that you may have.