Classes

Two Wheel Drive Trucks - These are the Funny Cars of tractor pulling - the wheel standers. You are as likely to see a Ford Thunderbird in this division as you are to see a T-bucket, you could see a Chevrolet S-10 or a Willy's Jeep. Regardless of the vehicle bodies, they will all be powered by a big block V-8 with a super charger in most cases, but with a sprinkling of turbo-chargers. This division competes at a weight of 6,200 lbs.

Modified Tractors - Modified Tractors can use virtually any number and type of engines and compete at a maximum weight of 7,500 pounds.You will see competitors in this division run 3 to 4 super charged V-8's, 2 allison aircraft engines, or 3 turbine engines. These engine combinations will produce between 6,000 to 8,000 horsepower, making it one of the most powerful motorsports in the world. You will actually feel the power when you watch them live!

Heavy Super Stock Diesel Tractors - You might call the Super Stock an unlimited version of the farm appearing tractor classes. Although they may appear on the outside, but produce many times over their factory rated horsepower. As the name implies, diesel is the only fuel allowed in the Super Stock Diesel division. These IH, Agco, and John Deere machines produce around 2,500 to 3,000 horsepower with their stock engine having up to four turbo chargers flowing the air mixture.

Super Semis - Tractor Pulling is called the Heaviest Motorsport on Earth and the Super Semis are the heavyweights of tractor pulling. Weighing in at 20,000 lbs., these behemoths overshadow everything else on the pulling track and for that matter, anything else in motorsports. When they come thundering down the track, the heavier the load gets, the harder they pull. Sometimes you wonder if they'll ever stop. The Super Semis are one of the most popular divisions of NTPA pulling.

Super Stock Open Tractors - The "Super Stock Open" class generates more power than any NTPA "stock" division. From their tube frame component chassis to their highly modified engine, these aren't your granddad's John Deere, Case-IH, or various other brand models found in agriculture - hardly! These machine can create in excess of 5,000 horsepower weighing 8,000 lbs. In the "Open" division, most of the engines have been modified to run on methanol fuel, although rarely fans will see a diesel fueled Super Stock joining in the fray. Unlike all other forms of NTPA "Stock" classes, the alcohol tractors do not blow plumes of black smoke..