When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
PTO stands for power take off. its like what a tractor uses on the rear end to power hay grinders and other goodies. on trucks if i am correct it is used to power hydrullic systems which will in turn power air compressors and other goodies.