New Marine Diesel Engine From Caterpillar

By George Backwell at September 15, 2012 06:27
Filed Under: Company News, General

A new high-speed marine diesel engine was introduced a few days ago by Caterpillar Marine Power Systems. The model C175-16, generally thought to be an improved version of the engine launched last year, is claimed by the manufacturers to be the cleanest-burning engine of its size in the world.

High-speed four-stroke trunk piston engines are widely specified for propelling small, generally specialised, commercial vessels, such as offshore vessels, tugs and workboat applications, which is exactly the market Caterpillar has in mind for the new engine, although this unit might well serve as a main and emergency genset on any size of ship.

High-speed Marine Diesel Engine CATERPILLAR C175-16: Photo credit Caterpillar Marine Power Systems

Engine Details

The 84.67 ltr displacement C175-16 engine, latest in a line of high performance engines designed to meet EPA Tier 3 and IMO Tier II emissions requirements, is rated at 2001/2168 bkW at 1600 rpm. With a bore of 175 mm (6.9 in) and a stroke of 220 mm (8.66 in), the C175-16 is highly efficient while providing increased propulsion output.

The engine features include:

  • Turbocharged and after-cooled aspiration
  • MCS approved monitoring, alarm, and protection system
  • Cross-flow head design
  • Simplified electrical system

The C175-16 engine offers 13% more power capability in the A and B duty cycle propulsion ratings with minimum footprint changes in a design that delivers significant reserve power capabilities for marine applications.

The engine utilises proven ACERT™ Technology. Cat® engines with ACERT™ feature optimised turbocharging and after-cooling to provide reliable maximum power output. This technology  enables higher ratings with lower peak cylinder pressures, exhaust temperatures and smoke levels without undermining fuel consumption in cruise mode.

The engine also features the Cat common rail fuel system enabling low emissions at all levels and requires no after-treatment to comply with regulations. In addition to a 1,000-hour oil change interval, thermo-laminated heat shields save time and money during service.

Dealer Service Verification by GL

Coincidentally, at about the same time as their launch of the new engine, Caterpillar announced plans to implement a certification programme of its global customer service network by classification society Germanischer Lloyd.

Dubbed the ‘Marine Service Assessment’ (MSA),  the initiative aims to achieve a high standard of customer service by implementing a consistent, comprehensive evaluation, improvement and certification process for its dealer service capabilities on a worldwide basis.

GL’s independent assessment of each dealer’s service capability will thus set a benchmark for the entire dealer network and establish a common evaluation standard.


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