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John Deere Power Systems announces new auxiliary marine engines

By John Deere Power Systems

Waterloo, Iowa-based John Deere Power Systems has introduced three new marine auxiliary engines.

The new 4045SFM85 offers high power-to-weight ratio for repowering and new boat construction. The 4.5L engine can be installed in planing and semi-displacement hulls.

In addition, John Deere Power Systems has introduced the new 6090HFM85 and 6135HFM85 marine engines specifically designed for radiator-cooled marine gen-set and auxiliary applications.

The new PowerTech 4045SFM85 has two ratings for light-duty commercial vessels, high-speed governmental applications and high-speed pleasure craft, which includes an M4 rating with 205 kW (275 hp) at 2600 rpm and M5 rating with 235 kW (315 hp) at 2800 rpm.

The PowerTech 4045SFM85 engine will be available for order in early 2018. The engine joins the existing lineup of John Deere Marine Tier 3 propulsion engines. The 4045SFM85's ratings will 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.

The engine is pending approval by American Bureau of Shipping, DNV GL, Lloyd’s Register and Bureau Veritas and will be the only ABS-certified, 315 hp, 4-cylinder in-board diesel engine.

“We’re excited to offer type approvals for this power range in the near future,” said Heather Balk, marine market planner for John Deere Power Systems. “Type approvals offer piece of mind to boat owners that this new engine from John Deere will pass marine authority safety tests and design reviews.”

The engine uses a waste-gated turbocharger that provides more torque capability at the low and middle rpm range, which is most notable during vessel acceleration, and features replaceable cylinder liners, making it possible to rebuild the engine for extended service life.

Additional features of the 4045SFM85 engine include standard front fuel service, optional left-hand or right-hand oil filter options for twin engine applications, an upgraded valve train that delivers a 40 percent increase in power and a 9 percent reduction in total engine weight for a 53 percent increase in power density compared to the 4045AFM85.

The new PowerTech 6090HFM85 is rated for variable speed at 242 kW (325 hp) at 2000 rpm and for generator drive and constant speed auxiliary at 262 kW (351 hp) at 1800 rpm. The PowerTech 6135HFM85 is rated for variable speed at 373 kW (500 hp) at 2000 rpm and for a generator drive and constant speed auxiliary at 458 kW (614 hp) at 1800 rpm.

“We’re excited to offer these additional air-cooled ratings, which are designed specifically for the marine gen-set and marine auxiliary engine markets, to the current 9.0L and 13.5L radiator-cooled, dry exhaust manifold engines,” Balk said.

The PowerTech 6090HFM85 and 6135HFM85 engines will be available for order by early 2018.

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