3512C High Displacement Propulsion Engine

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

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Power Range 1340-2366 bhp (1000-1765 bkW)
Speed Range 1600-1800 rpm
Emissions EPA Tier 3, IMO II
Aspiration TTA
Bore 6.69 in
Stroke 8.5 in
Displacement 3574 in³
Rotation from Flywheel End Counterclockwise
Configuration Vee 12, 4-Stroke-Cycle Diesel
Width 80.2 in
Height 87.5 in
Dry Weight 16508 lb
Length 104.2 in
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