John Deere Power Systems is now shipping the new PowerTech 4045SFM85 marine engine to boat owners and builders. A high power-to-weight ratio delivers torque in a compact engine package, making it choice for planing and semi-displacement hulls.
The new 4045SFM85 marine engine has two ratings — an M4 rating with 205 kW (275 hp) at 2600 rpm and M5 rating with 235 kW (315 hp) at 2800 rpm.
According to John Deere Power Systems, these ratings are ideal for light-duty commercial vessels, high-speed governmental applications and high-speed pleasure craft. Both the M4 and M5 ratings are applicable to commercial and recreational applications.
Thorough sea trials for the 4045SFM85 were conducted with an integrated team of John Deere marine application engineers, engine distributors and marine dealers.
“The sea trials offered us the opportunity to evaluate the installation and performance of the 4045S in varied boating applications with an M4 or M5 rating,” said Mike Van Donsel, senior marine application engineer. John Deere partnered with end-users to gather data from a bow picker, crabber, dive boat and recreational vessel.
Mark Milbourne repowered his recreational vessel with the 4045SFM85. “The new 4.5-liter is going to be a really good product for both commercial and recreational boat owners wanting good fuel economy and higher speeds,” he said.
The 4045SFM85 engine ratings meet U.S. Environmental Protection Agency Marine Tier 3 and Recreational Craft Directive II emissions regulations, as well as International Maritime Organization Tier II standards for commercial and recreational applications.
According to John Deere Power Systems to date, this is the only known ABS-certified, 315 hp, 4-cylinder in-board diesel engine that will be type approved by the American Bureau of Shipping, DNV GL, Lloyd’s Register and Bureau Veritas.