Grand National Divisional Sponsors

Please support the many sponsors of the National Tractor Pullers Association. Without our sponsors the NTPA would not be able to provide the same level of exciting pulling action.

If you would like to sponsor the NTPA, advertise online, or pursue numerous other options, please contact Dan Schroer.

NTPA Grand National Divisional Sponsors

Hi Torque

Hi-Torque®—NTPA GN Super Farm Tractor Sponsor

Hi Torque IMI Performance Products, Inc. sponsors the Grand National Super Farm division. Headquartered in Whittier, California, Hi Torque manufactures the highest quality gear reduction starter motors on the market today. Their units are expertly designed and coupled to an original DENSO product. Their U.S. Patented design maximizes the clearance considerations necessary for their customer’s difficult-to-fit application.

For more information about Hi Torque, visit


Doctor Preload

Doctor Preload®—NTPA GN Super Semi Truck Sponsor

Doctor Preload sponsors the Grand National Super Semi division. Headquartered in Fonda, New York, Doctor Preload is a product of Temper Axle, a company that has earned the trust of truck, bus, and specialty fleets around the world. They are backed by parent company, Temper Corporation, a leader in specializing bearing adjustment solutions for over 40 years. The company designs and manufactures products for a wide range of applications and industries.

For more information about Doctor Preload, visit


KPXA®—GN Modified Mini Sponsor

KPXA sponsors the Grand National Modified Mini division. Headquartered in Thomasville, North Carolina, KPXA has an incredible variety of racing engine services including 3-D Modeling, cylinder boring, block end truing, welding, cylinder honing, valve grinding, and many more high performance services.

For more information about KPXA, visit

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