Deere PowerTech Engines

Three John Deere Power Systems models—the PowerTech PWX 4.5L and PVX 4.5L engines, and the PowerTech PVX 6.8L model below 174 horsepower—in its lineup of 75 to 174 horsepower off-highway diesel engines are now certified as compliant with U.S. Environmental Protection Agency Interim Tier 4, European Union Stage III B and California Air Resources Board emissions regulations.