High Performance Propulsion and Maneuvering Solutions

3512C High Displacement Propulsion Engine

Power Range

1340-2366 bhp (1000-1765 bkW)

Speed Range

1600-1800 rpm


EPA Tier 3, IMO II


The Cat 3512C marine propulsion engine makes your investment work harder. Through a wide range of available power ratings, no required aftertreatment technology, and nominal rated BSFC fuel consumption - it will drive down your total cost of ownership. With a redesigned piston bowl shape to improve combustion, and improved fuel delivery, this engine is IMO II emissions compliant and committed to sustainable environmental development. Single-source support, the Caterpillar warranty, and industry-leading one-year warranty on parts make the 3512C a fully integrated marine power solution

    Dimensions & Weights


    104.2 in

    Dry Weight

    16,508 lb


    87.5 in


    80.2 in


    Speed Range

    1600-1800 rpm


    EPA Tier 3, IMO II




    6.69 in


    8.5 in


    3,574 in³

    Rotation from Flywheel End



    Vee 12, 4-Stroke-Cycle Diesel


    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
    • 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:
    • General
      • 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
    • Instrumentation
      • 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
    • Instrumentation
      • 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
    • Packing
      • Shrink Wrap Protection
      • Storage Preservation with Glycol Solution/Vapor Corrosion Inhibitor
      • Export Boxing
      • Export Packaging

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