Propulsion engines

C7.1

C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

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Power Rating
Power Range 280 bhp - 425 bhp (209 bkW - 317 bkW)
Engine Specifications
Speed Range 2300 - 2700 rpm
Emissions U.S. EPA Tier 3, IMO II, RCD II, China II
Configuration In-line 6, 4-stroke-cycle diesel
Displacement 428 in³
Aspiration Turbocharged-aftercooled
Governor Electronic (A5E2 V2 ECM)
Flywheel Housing SAE No. 03
Bore 4.13 in
Stroke 5.31 in
Refill Capacity 20 L (5.3 gal)
Oil Change Interval 500 hrs
Rotation Counterclockwise from the flywheel end
Cooling Heat exchange or keel cooled
Dimensions & Weights
Dry Weight 1676 lb
Height 34.5 in
Length 43.1 in
Width 31.4 in

General

  • Marine Classification Society (MCS) Approval
  • Water-cooled turbocharger and exhaust manifold
  • Closed crankcase ventilation system
  • Integral engine oil cooler
  • Self-tensioning multi-vee alternator drive belt

Fuel System

  • Common rail fuel system
  • Starter motors - 12V or 24V
  • Fuel cooler
  • Electric fuel priming pump

Starting System

  • Corrosion-resistant sea water aftercooler

Mounting System

  • Vibration damper and guard
  • Front and rear engine mounting brackets

Cooling System

  • Gear-driven seawater pump (rubber impeller)
  • Fin and tube-type jacket water heat exchanger
  • C7.1 Marine Commerical Prop Spec Sheet (209 bkW - 317bkW)
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations