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With excellent power-to-weight ratios, our engines give boat designers and fitters all the flexibility they need when it comes to new boat design or re-power installations for pleasure craft.

They offer excellent reliability and fuel economy, while being clean, quiet and smooth in operation. Low noise, rapid starting and low emissions are achieved with advanced combustion systems that allow for precise, multiple injections within each combustion cycle, reducing fuel use and lowering emissions.


6 cylinder

6.6 litre

225 kW at 2400 rpm

Peak torque 1050 Nm at 1400 rpm

Designed to meet U.S. EPA Tier 2, IMO2, and CCNR Stage 2 emissions standards

Based on 1106 range

Power Rating

Minimum Power 301.7 HP 225.0 kW Less
Maximum Power 301.7 HP 225.0 kW Less
Maximum Torque 774.4 lb-ft @ 1400 rpm 1050.0 Nm @ 1400 rpm Less
Rated Speed 2400 rpm 2400 rpm Less

Emission Standards

Emissions Meets EPA Tier 2, IMO2 and CCNR stage 2. Meets EPA Tier 2, IMO2 and CCNR stage 2. Less


Bore 4.1 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 402.8 in³ 6.6 l Less
Aspiration Turbocharged aftercooled Turbocharged aftercooled Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Combustion System Direct injection Direct injection Less
Compression Ratio 16.2:1 16.2:1 Less
Cooling System Liquid Liquid Less
Cycle 4 stroke 4 stroke Less
Number of Cylinders 6 inline 6 inline Less
Total Coolant Capacity 6.9 gal (US) 26.3 l Less
Total Lubricating Capacity 3.9 gal (US) 15.0 l Less


Note 1 Final dimensions dependent on selected options Final dimensions dependent on selected options Less

Engine Dimensions*

Dry Weight 1543.2 lb 700.0 kg Less
Height 33.1 in 841.0 mm Less
Length - Flywheel Housing 45.6 in 1159.0 mm Less
Wet Weight 1627.0 lb 738.0 kg Less
Width 30.0 in 763.0 mm Less

Clean, quiet, smooth operation

Turbocharger wastegate system to optimise low engine speed performance and provide smoother and faster boat acceleration at planing speed.

Ease of installation

Engines designed to permit a wide range of operating angles in both conventional and vee-drive installations.

Ease of maintenance

Easy access to all routine service points and service intervals of 500 hours ensures our engines are in use for longer.

Excellent power-to-weight ratio

Engines that are the most compact packages in their class, offering boat design flexibility both for new builds and for repower installations.

Lower operating costs

Engines with exceptionally low fuel consumption. And engines designed to be fuel tolerant, including kerosene, jet aviation fuel and B20 biofuel (RME).

Reliability and durability

High-capacity heat exchanger with cupro-nickel tubestack ensures low operating temperatures for reliability and durability. Gear-driven engines and raw water pumps give reliable cooling and leak-free operation

M300C Standard Equipment

Air inlet system
  • CuNi sea water charge air cooler
  • Dry wrapped turbocharger
  • Filtered crankcase breather
  • Watercooled exhaust manifold, with integral header tank

Control system
  • 12 volt starter motor
  • 90 amp 12 volt alternator
  • Electronic governor
  • Insulated electrics
  • J1939 fault diagnostics

Cooling system
  • Gear driven centrifugal jacket water pump
  • Gear driven self priming auxiliary water pump

Flywheels and flywheel housing
  • SAE3 backend

Fuel system
  • Common rail fuel system
  • Primary and secondary fuel filter, with integrated water in fuel alarm

  • 500 hour service interval
  • US Coast Guard, MCA & RCD approved oil and fuel lines

Oil system
  • Integral oil cooler
  • Oil filter, high level dipstick, and twin oil fillers
  • Shallow sump