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

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

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  • Length 43.1 in
  • Height 35.1 in
  • Minimum Width 31.4 in
  • Configuration In-line 6, 4-stroke-cycle diesel

Call 440-838-7348 for rate information

Dimensions & Weights

  • Length
    43.1 in
  • Height
    35.1 in
  • Minimum Width
    31.4 in
  • Maximum Width
    33.5 in
  • Minimum Engine Dry Weight
    1609 lb
  • Maximum Engine Dry Weight
    1676 lb

Engine Specifications

  • Configuration
    In-line 6, 4-stroke-cycle diesel
  • Emissions
    U.S. EPA Tier 3 / IMO II emissions certified (commercial), RCD 2016 compliant, EU Stage IIIA compliant, CCNR Stage II through reciprocity with EU Stage IIIA
  • Rated Engine Speed
    2300 - 2700 rpm
  • Bore
    4.13 in
  • Stroke
    5.31 in
  • Displacement
    428 in³
  • Aspiration
    Turbocharged-aftercooled aspiration
  • Governor
    Electronic (A5E2 V2 ECM)
  • Refill Capacity
    Lube Oil System w/Oil filter change: 20 L (5.3 gal)
  • Oil Change Interval
    500 hrs
  • Cooling
    Heat exchanger or keel cooled
  • Flywheel Housing
    SAE No. 03 with SAE 11.5 in flywheel
  • Rotation
    Counterclockwise from flywheel end

Reliability & Durability

Superior response time and acceleration; 12V or 24V electrical system; Gear driven jacket water pump and sea water pump for superior reliability; Maintenance free valve train with hydraulic valve lash adjusters

Easy to use

Compatible with Cat® displays and electronics; Self priming fuel system ensures a smooth start every time

Environment friendly

No visible smoke; Common rail fuel system enables optimum combustion and low emissions; Reduced combustion noise through advanced electronic control; Closed crankcase ventilation system improves engine room cleanliness

Standard Equipment:

  • Cooling System
    • Gear driven jacket water pump
    • Corrosion resistant sea water aftercooler
    • Fuel cooler
  • Exhaust System
    • Watercooled turbocharger and exhaust manifold
  • Fuel System
    • Common rail fuel system
    • Electric fuel priming pump
  • General
    • Vibration damper and guard
    • Self-tensioning multi-vee belt drive
  • Lube System
    • Closed crankcase ventilation system
    • Integral engine oil cooler
  • Mounting System
    • Front and rear engine mounting brackets
  • Starting System
    • Starter motors - 12V or 24V

Optional Equipment:

  • Air Inlet System
    • Various 6" water cooled exhaust elbow configurations
  • Cooling System
    • Engine mounted bilge pumps and auxiliary water pumps with electromagnetic clutch
    • Tube and bundle jacket water heat exchanger and gear-driven sea water pump (rubber impeller)
    • Jacket water heater
    • Cabin heater (calorifier) connections
  • Fuel System
    • SOLAS double wall high pressure fuel lines kit
  • Lube System
    • Left-hand and right-hand oil dipsticks
    • Transmission gear oil cooler (engine mounted)
  • Protection System
    • Additional engine and transmission sensor packages for on or off vessel monitoring
  • Starting System
    • Engine mounted secondary alternator - 24V 100 amp or 12V 175 amp
    • Glow plugs
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