Caterpillar expands C18 range

18 Aug 2010
Caterpillar C18 ACERT propulsion engine

Caterpillar C18 ACERT propulsion engine

Building on the success of the Cat C18 ACERT marine engine, Caterpillar Marine Power Systems is offering an additional rating for the inline engine to expand the power range available.

The 685kW rating for the C18 ACERT propulsion engine is claimed to provide best-in-class torque to maximise acceleration and speed. Along with the 747kW and 847kW ratings currently offered on the C18 ACERT engine, the additional rating will meet current industry demand for high power and is one of several marine engines Caterpillar will bring to the market over the next few years.

According to David Shannon, sales manager for Caterpillar Marine Power Systems, “We are pleased to extend the power ratings of the C18 ACERT engine series, as this has historically been one of the most popular and highest performing Cat marine engines.”

The C18 ACERT propulsion engine is an inline six-cylinder, four-stroke, 18.1-litre high speed diesel engine, which is electronically governed, turbo-charged and after-cooled. Cat says that the smaller, narrower package will provide improved ease of service with more room between engines compared to the existing engine ratings. The smaller footprint will also open additional opportunities where hull space may have prevented the installation of a C18 ACERT engine.

A crucial feature of the new engine rating is the claimed best-in-class power and torque, which Cat says results in faster speeds and better acceleration, with data from preliminary tests showed the C18 ACERT engine outpacing the competition for both power and torque curves.

Another benefit is an improvement in overall fuel economy. In fact, compared with the existing 847kW C18 ACERT, the new 685kW rating will increase fuel efficiency by some 25%. Additionally, the C18 ACERT engine will continue to be compliant with all major global emissions regulations, including IMO, EPA Tier 2, and EU 94/25/EC Recreational Craft Directive.

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