3512C (HD) Well Stimulation Engine

Well stimulation operations in the oilfield are complex and demanding. The 3512C (HD) engine for well stimulation operations was specifically developed to reach the highest power nodes while meeting the highest standards in 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) engines, with ratings: 1603-1864 bkW (2150-2500 bhp) @ 1900 rpm meet IMO Tier II, China Stage III, U.S. EPA Marine Tier 2, and U.S. EPA Non-road Tier 2 equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

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Minimum Rating 2250 BHP
Maximum Rating 2500 BHP
Aspiration Turbocharged-Aftercooled
Displacement 58.9 in³
Flywheel and Flywheel Housing SAE No. 0
Flywheel Teeth 151
Stroke 8.5 in
Bore 6.7 in
Emissions Non-current EPA Tier 2 and China Stage III
Length 113.8 in
Width 64.2 in
Height 86.1 in
Weight 14145 lb
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
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
  • 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
  • Rear sump oil pan — 250-hour change interval
  • Oil pan drain valve — 1" NPT female connection
  • Fumes disposal
  • Scavenger pump
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
  • Paint — Cat yellow
  • Vibration damper and guard
  • Lifting eyes
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
  • 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
  • Battery cable and battery rack