C175-16 Offshore Generator Set

Offshore Drilling and Production Generator Sets C175-16

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Key Specs

Minimum Rating
2619 kV·A
1833 ekW
Maximum Rating
3325 kV·A
2660 ekW
Available in IMO Tier II/ EPA Marine Tier 2 configurations
Available in IMO Tier II/ EPA Marine Tier 2 configurations


Caterpillar can help you navigate the challenges in the oil and gas industry, including global competition, tightening emission standards, and high productivity demands. The Cat® C175 delivers more reliable power in less space than any other generator set in its class. As efficient as it is powerful, this compact package will make a huge impact on your rig's performance. The proven success of the 3500 series engines forms the foundation of the Cat C175 diesel engine. Low owning and operating costs, high endurance components, and outstanding serviceability add to the innovations. The Cat Alarm and Protection System integrates with dual ADEM A4 engine control modules to provide redundant engine control, generator set protection, and a simple operator interface. Cat generator sets are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat C175-16 offshore generator set. Ratings: 1833-2660 ekW 2619-3325 kVA) @ 50/60 Hz (1500/1200/1800 rpm). U.S. EPA Marine Tier 2 certified and IMO Tier II emissions compliant.

Product Specifications for C175-16

Minimum Rating 2619 kV·A 1833 ekW
Maximum Rating 3325 kV·A 2660 ekW
Emissions Available in IMO Tier II/ EPA Marine Tier 2 configurations Available in IMO Tier II/ EPA Marine Tier 2 configurations
Stroke 8.66 in 220 mm
Weight 53599 lb 24312 kg
Oil Change Interval 1000 h 1000 h
Fuel System Common Rail/EUI™ Common Rail/EUI™
Engine Control Dual ADEM™ A4 Dual ADEM™ A4
Generator Set Control MPD 3 / Cat® Alarm and Protection System MPD 3 / Cat® Alarm and Protection System
Bore 6.89 in 175 mm
Displacement 5167 in³ 85 l
Aspiration Turbocharged/2-stage aftercooled Turbocharged/2-stage aftercooled
Speed 1200/1500/1800 rpm 1200/1500/1800 rpm
Height 50 Hz - 2928 (115 in) / 60 Hz - 2916 mm ( 115 in) 50 Hz - 2928 (115 in) / 60 Hz - 2916 mm ( 115 in)
Width 50 Hz - 2413 mm (95 in) / 60 Hz - 2125 mm (84 in) 50 Hz - 2413 mm (95 in) / 60 Hz - 2125 mm (84 in)
Length 50 Hz - 6782 mm (267 in) / 60 Hz - 6742 mm (265 in) 50 Hz - 6782 mm (267 in) / 60 Hz - 6742 mm (265 in)
Cooling System - Engine 92 gal (US) 77 l
Lube Oil System - Refill 250 gal (US) 946 l

C175-16 Standard Equipment

Air Inlet System

  • Dual turbochargers
  • Corrosion-resistant aftercooler core
  • Air cleaners — single or dual element

Exhaust System

  • Dry exhaust manifolds with thermo-laminated heat shields
  • Dual turbochargers with water-cooled bearings and thermo-laminated heat shields
  • Vertical exhaust outlet
  • Flange and exhaust expanders

Cooling System

  • Separate-circuit-aftercooler (SCAC) and jacket water (JW) circuit cooling system
  • Gear-driven centrifugal pumps, one for each circuit
  • SCAC electronic thermostat, outlet-controlled with aftercooler inlet temperature sensing
  • JW electronic thermostat, outlet-controlled with outlet temperature sensing
  • Engine oil cooler in JW circuit

Fuel System

  • Cat common rail high-pressure fuel system with electronically controlled unit injectors
  • Duplex primary fuel filter with water separator
  • Duplex secondary/tertiary fuel filters
  • Electric fuel priming pump
  • Gear-driven low pressure transfer pump
  • Gear-driven high pressure transfer pump
  • Double-walled high pressure fuel lines
  • Fuel pressure, temperature, and leak detection sensors

Lubrication System

  • Engine-driven, gear-type oil pump
  • Integral lube oil cooler
  • Front-mounted oil drain lines and valve
  • Oil sampling valve
  • Filler and dipstick
  • Four-canister simplex oil filter
  • Prelube pump — electric, air, or custom
  • Fumes disposal with crankcase breathers
  • Crankcase explosion relief valves

Engine Control and Protection

  • Dual ADEM A4 engine control unit (ECU) for redundancy
  • Software monitors engine parameters and performs alarm, derate, and shutdown functions
  • Rigid wiring harness
  • Marine Power Display 3.0 (MPD 3.0)


  • Inner-outer base with vibration isolators


  • Kato brushless permanent magnet 6P6.6-3200 HR
  • 2-bearing, close-coupled arrangement
  • 60 Hz, 600V, 0.7 PF
  • UL/CSA listed, IP23

Flywheel and Coupling

  • Flywheel housing, SAE No. 00
  • Flywheel, SAE No. 00
  • ABS certified, non-certified, or custom-coupling and coupling mounting
  • Free-standing or close-coupled generator set arrangements

Starting System

  • Turbine air starter or
  • Dual electric starting motors or
  • Air and electric starting motors (redundant)


  • Power distribution box — 24V or custom
  • 20A battery charger
  • Cat yellow paint
  • Offshore oil field sub-base
  • Integral spring isolators with limit stop
  • Lift provisions on base
  • Oil drain extension
  • Engine length drip pan with drain
  • Torsional dampened driveline couplings

C175-16 Optional Equipment

Air Inlet System

  • Air cleaner service indicator

Cooling System

  • 9 kW, 240V, 60 hz jacket water heater
  • Custom jacket water heater

Fuel System

  • Four canister duplex oil filter

Engine Control and Protection

  • Cat Alarm and Protection System
  • Communication module PL1000T/E
  • Direct-rack control
  • Thermocouples
  • Metal particle detector
  • SOLAS spray shielding


  • Custom I-beam base with vibration isolators


  • Custom generator


  • TVA report
  • Special tests
  • Project-specific installation drawings
  • P&ID-electrical drawings
  • Spare parts kit
  • Barring group
  • Engine lifting group
  • Custom generators and radiators

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C175-16 Offshore Generator Set

C175-16 Offshore Generator Set

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