3512C (HD) Well Stimulation Engine with Dynamic Gas Blending Kit

Well stimulation operations in the oilfield are complex and demanding. The 3512C (HD) with dynamic gas blending engine for well stimulation operations was specifically developed to lower fuel cost while 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) engines, with ratings: 1678-1864 bkW (2250-2500 bhp) @ 1900 rpm meet IMO Tier II, 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 2150 BHP
Maximum Rating 2500 BHP
Aspiration Turbocharged-Aftercooled
Displacement 3574 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
Length 110.4 in
Width 59.2 in
Height 86.3 in
Weight 14650 lb
Air Inlet System
  • Air-to-air aftercooled (ATAAC) (512DW04, 512DW05, 512DW06, 512DW07)
  • Air cleaners (single element w/service indicator)
Control System
  • With electronic fuel injector fuel system (10 amp DC power required to drive electronic engine control module)
Cooling System
  • ATAAC (512DW04, 512DW05, 512DW06, 512DW07)
  • Torque converter connections
  • Thermostats and housing, jacket water pump, gear-driven centrifugal (gear-driven centrifugal pumps)
  • Connections for radiator cooling
  • Dual outlets: 88.9 mm O.D. (3.5 in) elbow hose connections
Exhaust System
  • Land Well Service Engine:
  • Offshore Well Service Engine:
Flywheels & Flywheel Housing
  • 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 — RH
  • Oil pump
  • Oil filter — RH spin-on type
  • Rear sump oil pan, 250-hour change interval
  • Oil pan drain valve, 3/4" NPT female connection
  • Fumes disposal
  • Scavenger pump
Mounting System
  • Trunion front support
Power Take-Offs
  • ATAAC (512DW04, 512DW05, 512DW06, 512DW07)
  • 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
  • ATAAC (512DW04, 512DW05, 512DW06, 512DW07)
  • Single Air inlet shutoff
  • Paint, Cat yellow
  • Vibration damper and guard
  • Lifting eyes
Air Inlet System
  • Air cleaner
  • Remote air inlet adapters
  • Air inlet heater
Charging System
  • Battery chargers
  • Charging alternators
Control System
  • Throttle position sensors
Cooling System
  • Coolant level sensor
  • Coolant conditioner
  • Connections
Emissions Certifications
  • IMO Certification and European Union Certification
Exhaust System
  • Flexible exhaust fitting
  • Elbows
  • Flange
  • Flange and exhaust adapters
  • Manifold
  • Mufflers
Fuel Systems
  • Flexible fuel lines
  • Fuel cooler
  • Fuel priming pumps
  • Water/fuel separator
  • Fuel level switch
Gauges and Instrument Panels
  • Engine mount premium panel
  • Remote instrumentation
Lube System
  • RH oil filters
  • Oil pan accessories
  • Oil pan front sump — 250 hrs
  • High capacity oil pan — 500 hrs
Power Take-Offs
  • Front Accessory Drives
  • Auxiliary Drive Shaft
  • Auxiliary Drive Pulleys
  • Front Stub Shaft
  • Front Crankshaft Adapter
  • Pulleys
Protection System
  • Corrosion Protection
Starting System
  • Air starting motors
  • Air pressure regulator
  • Air silencer
  • Hydraulic starter
  • Battery sets— 24V
  • Battery cable