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336 Excavator

  • Specs Summary
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Cat® C4.4 Marine Generator Set

Cat® C4.4 Diesel Marine Generator Set has three phase ratings of 50 Hertz at 38.0, 51.5, and 69.0 ekW with heat exchanger cooling and at 36.0, 49.0, and 65.0 ekW with radiator cooling that meet EU CCNR2 emissions standards. The C4.4 also has three phase ratings of 60 Hertz at 44.0, 58.5, 76.0, and 99.0 ekW with heat exchanger cooling and of 42.0, 56.0, 72.0, and 95.0 ekW with radiator cooling. C4.4 gen set is available in 12 or 24 volt as an open gen set or as an enclosed package. Single-side servicing improves ease of maintenance and lowers overall owner operating costs. The compact package size is ideal for a wide range of commercial and pleasure craft applications. These ratings also have Marine Classification Society approved packages available.
  • Minimum Rating ( )
  • Maximum Rating ( )
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  • Aspiration ( )
  • Bore 4.13 in (105 mm)
  • Stroke 5 in (127 mm)
  • Displacement 269 in³ (4.4 l)
  • Governor Type ( )
  • Length 68.9 in (1750 mm)
  • Width 47.8 in (1215 mm)
  • Height 39.4 in (1000 mm)
  • Emissions/Fuel Strategy ( )
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  • Insulation ( )
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  • Voltage Regulator ( )
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Standard Equipment

Air Inlet System

  • Air cleaner, single element canister type w/ service indicator and rain cap
  • Dry insulated turbocharger (DIT and DITA models only)
  • Glowplug cold start system

Cooling System

  • Heat exchanger cooled packages w/ Cupro-nickel tube bundle (sized for 50 o C ambient air and 32 o C sea water) or Keel cooled packages (sized for 50 o C ambient air)
  • De-aeration expansion tank
  • Plate-type engine oil cooler
  • Gear driven centrifugal jacket water pump
  • Gear driven self priming sea water pump
  • Caterpillar Extended Life Coolant (heat exchanger cooled packages)

Exhaust System

  • Dry insulated turbocharger
  • Water-cooled exhaust manifolds

Fuel System

  • Primary fuel filter / water separator w/ NPT and BSP connectors (ship loose)
  • Secondary fuel filter (LH)
  • Fuel priming pump electric
  • Energize to run shutoff solenoid

Generator

  • 12 lead reconnectable
  • 3 phase all models
  • Brushless
  • Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
  • 2/3 pitch
  • Broad voltage band
  • IP23 water protection
  • Solid state voltage regulator w/ integral voltage adjustment potentiometer
  • Class H insulation
  • Connection poles

Lube System

  • Lubricating oil
  • Oil filter (LH)
  • Dipstick (LH)
  • Fumes disposal (closed system)

Mounting System

  • Steel base frame with drip pan
  • Anti-vibration mounts

Starting/Charging System

  • Negative isolated ground electric system

General

  • Single side service (LH)
  • Keel cooled gensets do not include the keel cooler(s)

Optional Equipment

Space heater kit

  • 240V AC, 120V AC