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3512C HD (Offshore) Well Service Engines

The 3512C (HD) offshore engine for well stimulation operations was specifically developed to operate in harsh environments offshore while meeting the highest standards in performance, durability, reliability, and emissions. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. 3512C (HD) offshore engines, with ratings: 1678-1864 bkW (2250-2500 bhp) @ 1900 rpm meet IMO Tier II and U.S. EPA Marine Tier 2 emission standards.

3512C HD (Offshore)

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The Cat® 3512C HD (Offshore) is built for reliable performance in the oil and gas range, backed by Al-Bahar's regional service and support network.

Maximum Rating
2500 BHP
Emissions
IMO Tier II and EPA Marine Tier 2
Displacement
58.9 in³
Minimum Rating
2150 BHP
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  • Specifications
  • Features
  • Standard Equipment

Specifications

General Specifications specifications
Maximum Rating 1864 bkW
Displacement 3596 l
Minimum Rating 1603 bkW
Aspiration Turbocharged-Aftercooled
Flywheel and Flywheel Housing SAE No. 0
Flywheel Teeth 151
Stroke 215 mm
Bore 170 mm

Features

Cooling System

Separate Circuit Aftercooler (SCAC)

Engine-Mounted Transmission Oil Cooler —

Integration with engine cooling system allows ease of installation and a tighter overall engine package

Advanced Digital Engine Management

ADEM A3 engine management system integrates speed control, air/fuel ratio control and ignition/detonation controls into a complete engine management system with integrated digital ignition, engine protection and monitoring

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.

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Standard Equipment

Air Inlet System
  • Heavy-duty air cleaners (dual element/service indicator)
  • Four center-mounted turbochargers
Control System
  • Cat® ADEM A3 ECU — LH
  • With electronic fuel injector fuel system (10 amp DC power required to drive electronic engine control module)
Cooling System
  • Separate Circuit SCAC system
  • Torque converter connections
  • Thermostats and housing, jacket and separate circuit water pump, gear-driven centrifugal
Exhaust System
  • Land well service engine
  • Exhaust manifold, dry, slip joint with stainless steel wire seal
  • Four turbochargers with watercooled bearings (center mounted)
  • Exhaust outlet, dual 203 mm (8 in) round flange
Flywheel and Flywheel Housings
  • Flywheel, SAE No. 0, 151 teeth
  • Flywheel housing, SAE No. 0
Fuel System
  • Primary fuel filter
  • Fuel priming pump
  • Fuel filter — RH spin-on type
  • Fuel transfer pump
  • Electronically controlled unit injectors
Instrumentation
  • No standard instrumentation
  • Optional, remote instrumentation available
  • Service meter
Lube System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filler and dipstick — LH
  • Oil pump
  • Oil filter — RH spin-on type
Mounting System
  • Trunion front support
Power Take-Offs
  • Accessory drive — lower LH
  • Front housing — two-sided
Protection System
  • ADEM A3 ECU system to provide customer programmable engine deration strategies to protect against adverse operating conditions
  • Emergency stop logic inputs provided at 40-pin customer interface connection
  • Dual air inlet shutoff
  • Oil pressure monitor
General
  • General
  • Vibration damper and guard
  • Lifting eyes

Optional Equipment

Charging System

  • Charging alternators

Control System

  • Local speed throttle control
  • Throttle position sensors
  • Governor conversion

Cooling System

  • Coolant regulator conversion
  • Water level switch gauge
  • Coolant level sensors and coolant conditioner

Exhaust System

  • Flexible exhaust fitting
  • Elbows, flange, exhaust adapters
  • Manifold and mufflers

Fuel Systems

  • Flexible fuel lines
  • Water/fuel separator
  • Fuel level switch

Instrumentation

  • Remote panel display and remote cylinder temperature display
  • Gauges and instrument panels

Lube System

  • Oil pans and filters
  • Deep sump oil pan and front sump pan

Power Take-Offs

  • Front crankshaft adapter
  • Flywheel stub shaft

Protection System

  • Sensors
  • Shutoff controls

Starting System

  • Air starting motors
  • Electric starting motors
  • Hydraulic starter
  • Ether starting aids
  • Battery sets — 24V