Danuser offers three different types of PTO systems that start at 20HP tractors and up. Danuser is the only American Made PTO system on the market today. The gear sets are larger in diameter, thicker, and will outlast and outperform the competition. The output spindles are available with 2” round and 2-9/16” round. The gearboxes are protected with shear bolts and no slip clutches.