Engine Room



Main Engine

The power behind MOKEN’s long-range cruising capability.

  • Keel cooled, non-electronic, M4 rating, 150 HP John Deere 4045TFM50 engine with ZF220 (3:1) gearbox. Engine hours (as of June 2020): 1808.
  • Racor 75/500MAX Turbine Series dual fuel filter/water separator with vacuum gauge.
  • MAG 1000 magnetic particle separator to engine Racor filter.
  • K&N air filter.
  • Two 140A, 24 VDC Leece Neville alternators with Balmar MC-624 regulator with alternator and battery temperature sensors.
  • Gulf Coast O-1 oil by-pass system.
  • Aqualarm cooling water flow detector with helm alarm.
  • Flowscan fuel flow to helm station gauge.
  • Trolling valve on the gearbox to allow slow speed running.
  • Second John Deere instrument panel in engine room.
  • Wet / Dry exhaust with thermal blanket and water muffler.
  • Exhaust, raw water and cooling lines upgraded to Trident silicone hoses.
  • Engine mounts upgraded to Isoflex polymer.


The large capacity generator, combined with wind and solar power options, ensures lots of power for extended life on the hook.

  • Northern Lights 9 Kw at 60 Hz (7 Kw at 50 Hz) genset in a sound shield enclosure. Engine hours (as of June 2020): 825.
  • Racor 500MA Turbine Series fuel filter/water separator with vacuum gauge.
  • Exhaust and raw water lines upgraded to Trident silicone hoses.
  • 220V power outlet installed on the aft deck to run a dive compressor directly off the generator.

Fuel System

Large diesel fuel tanks and fuel polishing provide extended cruising range and reliability.

  • Five diesel tanks under salon sole with helm tank monitor and one 422 GAL tank under marina deck, 2000 GAL total.  Separate tank for Dickinson diesel heater with sight gauge.
  • Single 3 inch diesel fill point with 1 inch breathers into SS side rails.
  • Fuel fill distribution manifold with stainless steel ball valves at each end of fuel lines.
  • Fuel transfer manifold for trim or polishing into utility tank.
  • Fuel polishing system with Walbro FRB-16-2 pump and gulf coast F-1 fuel filter.

Water Systems

Water where and when we want it. And keeping it from where it shouldn’t be.

  • Neoprene coated metallic tubing for all fresh water systems.
  • Stainless ball-type seacocks on all thru-hulls below the waterline.
  • Double stainless clamps on all hoses below the waterline.
  • Jabsco PAR-MAX 4 freshwater pump with Jabsco 1 litre accumulator and filter with additional 8 litre accumulator.
  • Jabsco 6 GPM/70 PSI washdown freshwater pump.
  • Two Rule 2000 GPH electric bilge pumps with audible alarms.
  • One Rule 3700 GPH electric bilge pump with audible alarm.
  • Edson 2″ manual bilge pump, 30 GPM in pilothouse.
  • Village Marine NF-600, 600 GPD reverse osmosis water maker.
  • Isotemp Basic 40, 11 GAL stainless electric hot water tank with engine water heat exchanger.
  • Two 125 GAL freshwater tanks with helm tank monitor.
  • Jabsco 50840 series low pressure cyclone centrifugal pump for REAL heaters.

Other Equipment

  • Max Power 24 VDC 12 HP bow thruster.
  • Sea chest for main sea water inlets: main engine, generator, air conditioning system and drain for ease of servicing.
  • Constant velocity joint, thrust bearing and PPS drip-less shaft seal on 2 inch SS prop shaft.
  • PPS drip-less shaft seal on rudder shaft.
  • Capilano hydraulic steering pump at helm station with dual Capilano steering cylinders.
  • Line cutting “Spurs” on prop shaft.
  • Quiet, large capacity engine room intake and exhaust blowers with noise isolated vents. Intake blower is reversible for engine room cooling.
  • Dual redundant IWAKI MD-100RM magnetic drive air conditioning pumps-selectable in engine room.
  • Reverso oil change for main engine, generator and gear box.