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Minimum Rating1470 kV·A (1030 ekW)
Maximum Rating1700 kV·A (1360 ekW)
EmissionsEPA Tier 2, IMO II
Engine ControlADEM A3
Cat 3500 offshore generator sets are specifically designed for drilling and production operations offshore. Decades of experience powering offshore vessels and platforms make have evolved into a product that offers proven performance, low emissions, high durability, and low owning and operating costs.Applications for 3500 offshore generator sets include main power, essential services power, and emergency power on-board drilling and production rigs and vessels.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 3512C offshore generator set. Ratings: 1030-1360 ekW (1470-1700 kVA) @ 60 Hz (1200/1800 rpm). Meets IMO Tier II emission standards.


Minimum Rating1470 kV·A (1030 ekW)
Maximum Rating1700 kV·A (1360 ekW)
EmissionsEPA Tier 2, IMO II
Engine ControlADEM A3
Fuel SystemEUI
Stroke7.5 in (190 mm)
Oil Change Interval500 h (500 h)
Displacement3161 in³ (51.8 l)
Bore6.7 in (170 mm)
Weight33300 lb (14975 kg)
Length214.5 in (5448 mm)
Width71.9 in (1825 mm)
Height91 in (2313 mm)
Lube Oil System - Refill84 gal (US) (318 l)
Cooling System - Engine41.5 gal (US) (157 l)

Benefits and Features

- Developed specifically to meet the demands of oil and gas applications - Proven reliability and durability - Robust diesel strength design prolongs life and lowers owning and operating costs - Market-leading power density - Designed to perform in oilfield conditions, including high ambient and high altitude applications - Long overhaul life proven in oilfield applications - Core engine components designed for reconditioning and reuse at overhaul

- Inner-outer base mounting configuration simplifies rig integration - Wide range of attachments enable configuration flexibility - Inner base three-point generator mounting maintains factory alignment - Single lifting point simplifies installation work

- ADEM A3 engine management system provided engine control, monitoring, and protection.

- E-stop pushbutton on instrument panel - Air shutoff and explosion relief valves available - Configurable alarm, derate, and shutdown set points - Extra alarms, inputs, and outputs available

For any petroleum application, trust Caterpillar to meet your project needs with custom factory generator sets and mechanical packages. Cat engines, generators, controls, radiators, and transmissions can be custom designed and matched in collaboration with our local dealers to create unique solutions. Custom packages are globally supported and are covered by a one year warranty after startup.

- More than 2,200 dealer outlets- Cat factory-trained dealer technicians service everyaspect of your Cat petroleum product- Worldwide parts availability, service, and warranty- Preventive maintenance agreements available for repairbefore-failure options- S•O•SSM program matches your oil and coolant samplesagainst Caterpillar set standards to determine:• Internal engine component condition• Presence of unwanted fluids• Presence of combustion by-products• Site-specific oil change interval

Ownership of these manufacturing processes enablesCaterpillar to produce high quality, dependable products.

For all your petroleum power requirements, visit

Standard Equipment

  • Corrosion resistant separate circuit aftercooler core, regular dutyair cleaners, dual turbochargers
  • Caterpillar A-III electronic engine control, Electronic UnitInjection fuel system, rigid wiring harness
  • Auxiliary fresh water pump, centrifugal non-self-priming auxiliarysea water pump, gear driven centrifugal jacket water pump,expansion tank, engine oil cooler, thermostats and housing
  • Dry gas-tight exhaust manifolds with heat shields, dualturbochargers with water-cooled bearings and heat shields,vertical exhaust outlet
  • Flywheel, SAE No. 00, 183 teethFlywheel housing, SAE No. 00
  • Fuel filter, RH, with service indicators
  • Fuel transfer pump
  • Electronically Controlled Unit Injectors
  • Engine mounted instrument panel with four position switch, overspeed shutdown notification light, emergency stop notificationlight, graphical display unit for analog or digital display of: oil andfuel pressure, oil and fuel filter differential, system DC voltage,exhaust and water temperature, air inlet restriction, servicemeter, engine speed, fuel consumption (total and instantaneous)
  • Top mounted crankcase breather, RH oil filter, RH oil filler,gear type oil pump, deep sump oil pan, recommended use ofCaterpillar Diesel Engine Oil 10W30 or 15W40
  • Industrial type engine mounting rails)
  • Accessory driveLower RH, Lower LHFront housing, Two-sided
  • A-III Electronic Monitoring System provides customer programmableengine de-ration strategies to protect against adverse operatingconditions
  • Emergency stop push button (located in Electronic Instrument Panel)Safety shutoff protection for oil pressure and water temperature, overspeed protection
  • Vibration damper and guardPaint, Caterpillar Yellow engine with black rails.Lifting eyes

Optional Equipment

  • Air Cleaner Removal
  • Remote Air Inlet Adapters
  • Battery Chargers
  • Charging Alternators
  • Load Sharing module
  • Local speed throttle control
  • Water level switch gauge
  • Coolant level sensors
  • Connections
  • Keel Cooling Conversions
  • Radiator cooling conversion
  • Heat exchangers
  • Auxiliary water pumps
  • Sea water pump removal
  • Air separator
  • Exhaust outlet
  • Flexible fittings
  • Elbows
  • Flanges
  • Flange and exhaust expanders
  • Mufflers
  • Fuel Cooler
  • Fuel priming pumps
  • Flexible fuel lines
  • Rigid Fuel Lines
  • Primary fuel filter
  • Fuel level switch
  • PL1000T Communication Module
  • PL1000E Communication Module
  • Customer Interface Box
  • Thermocouples
  • Remote panel display
  • Remote cylinder temperature display
  • Oil Pan
  • Oil pan accessories
  • Sump pumps
  • Prelubrication Options
  • Lubricating oil
  • Centrifugal Oil Filter
  • Vibration isolators
  • Rails
  • Flywheel guard
  • Flexible coupling
  • Coupling hub
  • Front housing accessories
  • Upper left hand front location
  • Upper left hand rear location
  • Upper right hand front location:
  • Upper right hand rear location
  • Lower left hand front location
  • Front housing accessory drives
  • Front power take-offs
  • Crankshaft pulleys
  • Damper guard removals
  • Air inlet shutoffs
  • Switches and contactors
  • Explosion relief valve
  • Sensors
  • Engine Parts Kits
  • Starting motors or barring divice
  • Air starting motors options
  • Starting aids
  • Battery sets - 24 volt - Dry
  • Battery rack
  • Tool set
  • Caterpillar datalink wire