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Caterpillar

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

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

Photos

Videos

  • Meet the new C7.1 Commercial Propulsion Engine
  • C7.1 Marine Propulsion Engine Walkaround

Features

Specifications

  • Dimensions & Weights
    Spec Value
    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
  • Power Rating
    Spec Value
    Power Range 208 bkW (280 bhp) @ 2300 rpm
  • Engine Specifications
    Spec Value
    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 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

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