| John Deere Power Systems Releases New 6.8L Marine Propulsion Engine |
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| Written by Product Commentary | |
| Saturday, 22 September 2007 | |
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John Deere Power Systems (JDPS) is pleased to announce the new PowerTech 6.8L marine propulsion engine. The 6068SFM75 offers up to 298 kW (400 hp) and is the newest marine engine offered by John Deere. This new engine model meets EPA Tier 2 and EU emissions requirements and is MARPOL Annex VI compliant. The 6.8L marine engine is available in M1 through M5 ratings.
"We are very happy to be able to offer our marine customers an expanded lineup of marine propulsion engines with more and higher horsepower ratings," said Carl Micu, sales product manager for JDPS. "Now that the newly configured 6.8L engine has an M5 rating, customers can get up to 400 hp out of one of our most popular engines, where before the 6.8L engine topped out at 300 hp." The M5 rating is most suitable for recreational applications, but the engine’s four other ratings, which are suited for both recreational and commercial applications, also offer increased horsepower. The 6068SFM75 offers top-of-class fuel economy for every rating at both full load rated speed and typical cruising speeds. The 6068SFM75 is a new marine engine design based on the heavy-duty John Deere off-highway PowerTech 6.8L engine used in John Deere agricultural and construction and forestry machines. This engine offers new features such as a 4-valve cylinder head, a high-pressure common-rail fuel system with pilot injection, a new seawater aftercooler, a heat exchanger with integrated top tank, a water-cooled exhaust manifold and turbo, as well as a viscous damper and a closed crankcase ventilation system. "We designed the new 6068SFM75 to provide a high power output while maintaining the legendary long-term reliability our customers have come to expect from John Deere marine engines," Micu said. "This new engine lives up to the reputation our marine engines have earned for rugged durability, fuel economy, quiet operation and ease of maintenance." In addition to its M5 rating, the 6.8L engine is available at four other ratings*:
All John Deere marine engines meet emissions requirements, and the engines range in power from 56 to 455 kW (80 hp to 610 hp). |
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| Last Updated ( Saturday, 22 September 2007 ) |
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The M5 rating is for marine applications that operate 300 hours or less per year and have load factors less than 35 percent with 30 minutes out of each 8 hours of operation at full power. At M5, its highest rating, the 6.8L offers 298 kW (400 hp) at 2800 rpm* and consumes 77.6 liters of fuel per hour (20.5 gallons) at full load rated speed. 
