New CAT Equipment

3512C Tier 3 Marine Propulsion Engine

The 3512C High Displacement marine engines are now available in a wide range of ratings that meet EPA Marine Tier 3 and IMO II regulations without any additional aftertreatment. These new propulsion, auxiliary, and DEP engines, designed and built from the current 3512C and 3516C platforms, have minimal dimensional and weight changes in comparison. Owning and operating costs are also very similar. For the specific fuel consumption of each rating please refer to the performance data. New features include stainless steel exhaust heat shields, closed crankcase ventilation system, and EPA Tier 3 compliance.

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    • Dimensions & Weights
      Maximum Height
      87.5 in
      Maximum Length
      104.2 in
      Maximum Width
      80.2 in
      Minimum Dry Weight
      16508 lb
      Minimum Height
      87.5 in
      Minimum Length
      104.2 in
      Minimum Width
      80.2 in
    • Engine Specifications
      6.69 in
      Vee 12, 4-Stroke-Cycle Diesel
      3574 in³
      EPA Tier 3, IMO II
      Rotation from Flywheel End
      Counterclockwise or Clockwise
      Speed Range
      1600-1800 rpm
      8.46 in
    • Power Rating
      Power Range
      1340-2366 bhp (1000-1765 bkW)
    Air Inlet System
    • Separate circuit aftercooler core, corrosion resistant coated (air side)
    • Powercore air cleaner
    Control System
    • Dual Caterpillar A4 Electronic Engine Control with Electronic Unit Injector Fuel System
    • Rigid Wiring Harness (10 amp DC power required to drive Electronic Engine Control Module)
    Exhaust System
    • 3500C engines:
    Fuel System
    • Fuel transfer pump
    • Electronically Controlled Unit Injectors
    Lube System
    • Crankcase breather groups, Top mounted
    • Oil filler and dipstick, LH or RH
    • Oil pump, gear type
    • 250 or 1000 hour sump oil pan
    Mounting System
    • 3500C engines:
    Power Takeoffs
    • Accessory drives: Lower RH, lower LH
    • Front housing, two-sided
    Protection System
    • A4 Electronic Monitoring System provides customer programmable engine derating strategies to protect against adverse operating conditions
    • Emergency stop push button (located in Electronic Instrument Panel)
    • Safety shutoff protection:
    • Vibration damper and guard
    • Lifting eyes
    • NOTE: Engines for heat exchanger cooling do NOT include heat exchange
    Flywheel and Flywheel Housing
    • Flywheel, SAE No. 00, 183 teeth
    • Flywheel housing, SAE No. 00
    Cooling System
    • Oil cooler
    • Thermostats and housing, Full open temperature 92 C (198 F)
    • Jacket water pump, gear driven, centrifugal
    • Auxiliary fresh water pump
    • Aftercooler system: If using glycol, up to maximum 20% glycol concentration is allowed
    • Electronic service meter, instrument panel (24V), start/stop switch, emergency stop button, maintenance due light, diagnostic light, warning light, maintenance clear switch, start motor magnetic switch, 15 and 3A breakers
    • Graphical Unit (Color Marine Power Display) for analog or digital of:
    Air Inlet System
    • Air Inlet Adapters
    Charging System
    • Battery Chargers
    • Charging Alternator
    Control System
    • Throttle Control
    Cooling System
    • Coolant Shunt Tank
    • Cooling System Options
    Exhaust System
    • Flexible Fittings
    • Elbows
    • Flanges
    • Flange and Exhaust Expanders
    • Mufflers
    Fuel System
    • Fuel Cooler Heat Exchanger - Sea Water
    • Primary Fuel Filter
    • Fuel Level Switch
    • Rigid Fuel Lines
    • Flexible Fuel Lines
    • Communication Modules
    • Color Marine Power Display System
    • Pilot House Instrument Panels
    • Marine Gear Sensors
    Lube System
    • Sump Pumps
    • Lubricating Oil
    Power Take-Offs
    • Stub Shafts
    • Crankshaft Pulleys
    • Damper Guard
    • Flexible Coupling and Guards
    Marine Society Requirements
    • Green Passport Documentation
    • Spray Shielding
    Protection System
    • Shutoff and Alarm Contactors
    Special Appearance Packages
    • Special Appearance Packages with Chrome Covers
    • Yacht Class Finish
    Starting System
    • Air Starting Motor Options
    • Battery Sets - 24 Volt - Dry
    • Battery Rack
    Mounting System
    • Engine Supports
    • Vibration Isolation Mountings
    • Paint Color Options
    • Shrink Wrap Protection
    • Storage Preservation with Glycol Solution/Vapor Corrosion Inhibitor
    • Export Boxing
    • Export Packaging