With the requirement to meet stricter air emissions standards, the engines in high horsepower farm tractors continue to undergo one of the most significant transformations in the history of ag equipment. 

While the major U.S. manufacturers have made their intentions clear about how they’ll meet the new regulations, some of the European tractor makers are just now announcing their intentions. JCB, manufacturer of Fastrac tractors will change its engine supplier, and ARGO, maker of McCormick…