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C1.5 Marine Generator Set Engine

Cat® C1.5 Diesel Marine Generator Set has single phase ratings of 50 Hertz at 10.0 ekW and 60 Hertz at 12.0 ekW that meet U.S. EPA Tier 3 and EU IW emission standards. The Cat® C1.5 also has three phase ratings of 50 Hertz at 11.0 ekW and 60 Hertz at 13.0 ekW that meet U.S. EPA Tier 3 and EU IW emissions standards. This generator set is available in 12 or 24 volt as an open gen set or as an enclosed package.



  • Generator Set Specifications
    Spec Value
    Minimum Rating 10 ekW (10 kVA)
    Maximum Rating 13 ekW (16.5 kVA)
    Frequency 50 Hz or 60 Hz
    Speed 1500 rpm (50Hz) or 1800 rpm (60 Hz)
    Emissions/Fuel Strategy 60 Hz meets EPA Tier 3*, 50 Hz meets EU 97/68EC Stage II regulations
  • Engine Specifications
    Spec Value
    Engine Model C1.5, In-line 3, 4-Stroke-Cycle-Diesel
    Aspiration Naturally Aspirated
    Bore 3.31 in
    Stroke 3.5 in
    Displacement 91 in³
    Governor Type Electrical Isochronous
  • Generator Set Dimensions
    Spec Value
    Weight 319 kg/703 lbs (open), 368 kg/811 lbs (enclosed)
    Length 37.4 in/962 mm (open), 40 in/1021 mm (enclosed)
    Width 21 in/533 mm (open), 24 in/608 mm (enclosed)
    Height 27.5 in/699 mm (open), 28 in/710 mm (enclosed)
  • Generator Specifications
    Spec Value
    Excitation AREP
    Insulation Class H
    Voltage Regulation ±0.5%
    Frame Size 1.5

Standard Equipment

Air Inlet System

  • Air cleaner, single element canister type with rain cap (open generator set only)

Control System

  • Electronic isochronous governor

Cooling System

  • Belt-driven centrifugal jacket water pump
  • gear-driven seawater pump
  • heat exchanger with copper nickel tubes
  • expansion tank

Exhaust System

  • Watercooled exhaust manifold and elbow

Fuel System

  • Fuel filter — RH or LH service
  • fuel priming
  • fuel transfer pump
  • flexible fuel lines


  • Single Phase

Lube System

  • Lubricating oil
  • oil filter (RH)
  • dipstick (RH)
  • fumes disposal (closed system)

Mounting System

  • Anti-vibration mounts, connected to drip tray and steel base sitting on PVC foam sound-absorbent pad

Protection System

  • Electronic automatic safety shutdown for low oil pressure, high water temperature, high exhaust (wet exhaust only) temperature, and overspeed

Starting System

  • 12 or 24 volt electronic starting motor, 12 volt 55 amp alternator


  • Single-side service (RH), decals, literature