3508C Offshore Generator Set

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 3508C offshore generator set. Ratings: 639-779 ekW (799-974 kVA) @ 50 Hz (1500 rpm). Meets IMO Tier II emission standards.

Product Design

- 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

Ease of Installation

- 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

Advanced Digital Engine Management

- 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

Custom Packaging

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.

Product Support Offered Through the Global Cat Dealer Network

- 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

Over 80 Years of Engine Manufacturing Experience

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

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com.

Documents & Brochures

Standard Equipment

  • Aftercooler core — corrosion resistant coating
  • Air cleaners — dual element, installed
  • Air inlet shutoff
  • Caterpillar A-III electronic engine control
  • Rigid wiring harness (MCS)
  • Outlet controlled thermostat and housing
  • Jacket water pump — gear-driven, flanged single outlet
  • Aftercooler fresh water cooling pump — gear-drivencentrifugal
  • SCAC pump circuit with thermostat
  • Single water outlet connection
  • Dry gas-tight exhaust manifolds with heat shields, dualturbochargers with water-cooled bearings and heat shields
  • Flexible exhaust fitting/weldable exhaust flange
  • Flywheel, SAE No. 00
  • 183 teeth
  • Flywheel housing, SAE No. 00
  • MCS approved coupling and generator hub
  • Fuel filter — LH
  • Fuel transfer and priming pumps
  • Electronically Controlled Unit Injectors
  • Flexible fuel lines
  • Hard fuel return line for MCS requirements
  • Graphic unit (Marine Power Display), LH for analogor digital display of: engine oil and fuel pressure,engine water temperature, system DC voltage, airinlet restriction, RH & LH exhaust temperature, oil andfuel filter differential, service meter, engine speed,instantaneous fuel consumption, total fuel consumed
  • Operator programmable display, monitoring, alarms andshutdowns
  • Crankcase breather — top mounted
  • Deep sump oil pan — 1000 hour
  • Lube oil
  • Oil drain and valve
  • Oil filler and dipstick
  • Oil filter — cartridge-type, LH
  • Oil pump — gear-type
  • Engine and generator three-point mounted into outer base
  • Oil drain extension
  • Oil drip pan
  • 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
  • Air starting motor — RH
  • Electric start control
  • Air silencer
  • Vibration damper and guard
  • Lifting eyes
  • Paint, Cat yellow

Additional information

Offering Type

Engine Specifications - Minimum Rating

639.0 ekW ( 799.0 kV·A )

Engine Specifications - Maximum Rating

779.0 ekW ( 974.0 kV·A )

Engine Specifications - Emissions


Select Up To 3 Models To Compare