3516C (HD) CI/D2 Hazardous Location

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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. 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 3516C (HD) Class I/ Division 2 offshore generator set ratings: 2100 ekW (2963 bhp) @ 60 Hz (1800 rpm).

Engine Specifications

  • Minimum Rating 2625.0 kV·A 2100.0 ekW
  • Maximum Rating 2625.0 kV·A 2100.0 ekW
  • Emissions EPA Tier 2, IMO Tier II EPA Tier 2, IMO Tier II
  • Aspiration Dual Turbocharged-Aftercooled Dual Turbocharged-Aftercooled
  • Bore 6.7 in 170.0 mm
  • Displacement 4760.0 in³ 78.0 l
  • Engine Control ADEM A4 ADEM A4
  • Fuel System EUI EUI
  • Stroke 8.5 in 215.0 mm
  • Weight 38581.0 lb 17500.0 kg


  • Height 100.0 in 2535.0 mm
  • Length 264.0 in 6705.0 mm
  • Width 78.0 in 1986.0 mm

Capacity for Liquids

  • Cooling System - Engine 62.0 gal (US) 234.7 l
  • Lube Oil System - Refill 107.0 gal (US) 405.0 l

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 every aspect of your Cat petroleum product - Worldwide parts availability, service, and warranty - Preventive maintenance agreements available for repairbefore- failure opti

Over 80 Years of Engine Manufacturing Experience

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

Over 80 Years of Engine Manufacturing Experience

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

Web Site

For all your petroleum power requirements, visit

Web Site

For all your petroleum power requirements, visit

3516C (HD) CI/D2 Hazardous Location Standard Equipment


  • Aftercooler core, corrosion resistant (air side)
  • Air cleaner, regular duty with service indicators
  • Dual turbochargers, rear mounted


  • Dual Caterpillar A4 electronic engine control with electronic unit injector fuel system and rigid wiring harness.
  • 24 VDC (less than 10A) to be provided by customer at Power Distribution Panel to power engine electrical system.


  • Jacket water (JW) engine cooling and two-stage jacket water/separate circuit (SCAC) charge air cooling
  • To ensure compliance in use, radiators or heat exchangers must be capable of rejecting sufficient heat to allow proper engine operation at worst site conditions.
  • The radiator or heat exchanger must supply 48C (118 F)
  • SCAC cooling water to the aftercooler inlet of at least 200 gal/min at ambient temperature of 30C and at site conditions (including altitude considerations)


  • Dry gas-tight exhaust manifolds with heat shields, dual turbochargers with water-cooled bearings and heat shields.
  • Exhaust outlet: 305 mm (12 in) round flanged outlet, vertical orientation


  • Flywheel, SAE No. 00, 183 teeth Flywheel housing, SAE No. 00
  • Flywheel housing, SAE No. 00
  • SAE standard rotation


  • Duplex Fuel filter, LH service. Simplex fuel filter, RH service
  • Fuel transfer pump
  • Fuel priming pump, RH
  • Electronically Controlled Unit Injectors
  • Customer connection located at lower right front of engine
  • SOLAS shielding


  • Engine mounted instrument panel with four position switch, over speed shutdown notification light, emergency stop notification light, graphical display unit for analog or digital display of: oil and fuel pressure, oil and fuel filter differential, system DC voltage, exhaust and water temperature, air inlet restriction, service meter, 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 of Caterpillar Diesel Engine Oil 10W30 or 15W40


  • Mounting rails and isolation system based on customer request


  • MCS certified Class I / Divison 2
  • Low Smoke Zero Halogen Wiring Harness


  • A-III Electronic Monitoring System provides customer programmable engine de-ration strategies to protect against adverse operating conditions
  • Emergency stop push button (located in Electronic Instrument Panel) Safety shutoff protection for oil pressure and water temperature, over speed protection


  • Only electrical system is hazardous environment certified
  • NEC 500 Class I Division 2 for gas groups C and D
  • Temperature class is T3 for ambient temperatures from -10 C to 50 C
  • Class I/ Division 2 CMPD


  • Class I / Division 2 designed to customer's specifications
  • Insulation for harsh environment protection

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