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AirGen / John Deere Equipment

  • Off Highway Diesel Engines
    Dealer services photo

    Job-proven performance

    We have an unparalleled track record for providing hard-working, reliable, and efficient engines that don’t let you down, even in the most extreme conditions. Whatever you throw at them — vibration, extreme temperatures, dust — John Deere engines keep working day after day.

    Biggest emissions reductions yet

    The move to Interim Tier 4/Stage III B emissions regulations is unquestionably the most significant to date. The regulations call for a 90 percent reduction in particulate matter (PM) along with a 50 percent drop in nitrogen oxides (NOx). Final Tier 4/Stage IV emissions regulations, which will be fully implemented by 2015, will take PM and NOx emissions to near-zero levels.

Built on proven PowerTech Plus technology

  • First in the field John Deere was the first engine manufacturer to take advantage of cooled exhaust gas recirculation (EGR) and variable geometry turbocharger (VGT) technologies in off-highway applications, introducing them with Tier 3/Stage III A emissions regulations. Our engines have a proven record of emissions reduction, best-in-class fuel economy, and rugged reliability. By choosing EGR first, we proved that we could meet emissions regulations and deliver high performance without the continuing cost and inconvenience of selective catalytic reduction (SCR). When it comes to off-highway performance, other engine manufacturers can only follow in our tracks.
  • Off-highway durability The jobs that John Deere PowerTech engines tackle every day are as varied as the equipment they power. That’s why John Deere Interim Tier 4/Stage III B engines integrate many technologies designed to meet the unique needs of off-highway equipment. PowerTech 4.5L, 6.8L, 9.0L, and 13.5L engines use our proven PowerTech Plus technology, which includes 4-valve cylinder heads, cooled EGR, VGT, air-to-air aftercooling, high-pressure fuel systems, and wet-type cylinder liners.