About Hagedorn Racing Engines

Terry and wife Sheila stay very busy daily with running the farm, the Hagedorn Motorsports program, and Sheila works at USDA helping folks.  In the spring and summer they take to their passion as truck pullers and their two 4WD pulling trucks to compete on the national circuit. 

Terry also besides running Thompson Service Center (local auto repair facility) builds racing engines for customers all over the United States.

Terry Wins National Title

Terry Hagedorn Truck Pulling MotorsportsThe Optima Batteries Pro Modified Four Wheel Drive Truck class is a hotly fought for class on the Lucas Oil Pro Pulling League Champions Tour and it in many cases delivers twenty or more competitors to the starting line. Whenever those twenty or so challengers play in a game in which inches determine a victor, the ability to repeat as champion is all the more difficult. Terry Hagedorn was able to take his Missouri-based “Untamed Spirit” back to the top of the class for 2014 and it was a huge battle until the last hook.

With only ten sessions of competition accessible to the Pro Mod Four Wheel Drive competitors, Hagedorn worked hard to stay on top of the class. That consistency throughout the season as well as three wins paid off as Terry managed to hold off a late season charge by Pete McKeeth and the “Jus’ Ruttin’” Silverado by seven points.

Hagedorn will once again be highlighted in Pro Pulling Magazine for his endeavour together with all of the points champions over the Champions Tour, TS Performance Silver Series, Prairie Brands Western Series, and Ag Protect 1 Mid West Region.

Terry and Sheila, have been competing in pro truck pulling since 1989.  In August 2011, Hagedorn competed in the Lucas Oil Indy Super Pull in Indianapolis, where he took first and third place wins, in his two power pulling trucks – Gun Powder and Lead and the Untamed Spirit.

Gunpowder & Lead Pulling Truck Hagedorn MotorsportsOther wins include the 2011 Lucas Oil Speedway, the 2006 championship trophy he won at the Grand Outlaw National Tractor and Truck Pull in Chickasha, Okla., and the Lucas Oil Championship three years ago. Terry and Shelia compete in the Speedco Modified 4x4 Trucks.

Terry has always liked motor sports, and finding a wife with the same passion, is definitely a plus. This year, the circuit carried them as far east as South Carolina; as far north as Wisconsin; and as far south as Texas. They have been to New York and even pulled up in Canada a few times.

Untamed Spirit Pulling Truck Lucas Oil Champion Hagedorn MotorsportsWhen Hagedorn isn't competing, he owns and operates Hagedorn Racing Engines, which has been in business since 1980.

Be sure and say hi if you happen to an event where they are pulling.  Just ask around for Terry "High Gear" Hagedorn.



We have been pulling since 1998 and met Terry in 1999 when we had questions due to being new pullers. We needed to know how to set our fuel so we pulled a plug out after our run. One of our competitors said to take it to Terry Hagedorn he will help. When we took the plug to Terry he read it and told us how to adjust our fuel. We have been going to Terry for the last 15 years. He has helped us set up our fuel at the track, set our truck up, build our frame, refresh our motor each year and build our motor bigger and better. He has also, helped set up our clutch, rear end, front end, tire pressure, and assist us in choosing just the right gear to run on the different tracks. There has been many phone calls over the years late at night with, "What do we need to do?" Terry replies "Well," and fixes the issue at hand over the phone. Terry has lead us to championships over the years. He keeps his phone close after every pull and is excited to hear how we finished. We have been very pleased with the vast knowledge of our motor builder and would highly recommend Terry in any motorsports arena.

Bobby and Jodi Crawford - True Grit