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The Cat 3512C marine propulsion engine makes your investment work harder. Through a wide range of available power ratings (including High Displacement 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 or China Stage 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.
Request a QuotePower Range1281 - 2552 bhp
Speed Range1200 - 1800 rpm
EmissionsIMO II, China Stage II
AspirationTTA
Bore6.69in
Stroke7.48in
Stroke - HD8.46in
Displacement3161in³
Displacement - HD3574in³
Rotation from Flywheel EndCounterclockwise or Clockwise
ConfigurationV 12, 4-Stroke-Cycle Diesel
Length - Engine111.1in
Maximum Length102in
Maximum Width80.2in
Minimum Dry Weight14400lb
Minimum Width80.2in
Minimum Height75in
Minimum Length102in
Maximum Height75in
Maximum Dry Weight16340lb
Standard
Separate circuit aftercooler core, corrosion resistant coated (air side)
Powercore air cleaner
Optional
Air Inlet Adapters
Standard
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)
Optional
Throttle Control
Standard
3500C engines:
Optional
Flexible Fittings
Elbows
Flanges
Flange and Exhaust Expanders
Mufflers
Standard
Fuel transfer pump
Electronically Controlled Unit Injectors
Optional
Fuel Cooler Heat Exchanger - Sea Water
Primary Fuel Filter
Fuel Level Switch
Rigid Fuel Lines
Flexible Fuel Lines
Standard
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:
Optional
Communication Modules
Color Marine Power Display System
Pilot House Instrument Panels
Marine Gear Sensors
Standard
Crankcase breather groups, Top mounted
Oil filler and dipstick, LH or RH
Oil pump, gear type
250 or 1000 hour sump oil pan
Optional
Sump Pumps
Lubricating Oil
Standard
Rails, engine mounting, ledge type, 203 mm x 203 mm (8 in x 8 in) or Front Trunnion
Optional
Engine Supports
Vibration Isolation Mountings
Standard
Accessory drives: Lower RH, lower LH
Front housing, two-sided
Standard
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:
Optional
Shutoff and Alarm Contactors
Standard
Vibration damper and guard
Lifting eyes
NOTE: Engines for heat exchanger cooling do NOT include heat exchange
Standard
Flywheel, SAE No. 00, 183 teeth
Flywheel housing, SAE No. 00
Standard
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
Optional
Coolant Shunt Tank
Cooling System Options
Optional
Battery Chargers
Charging Alternator
Optional
Stub Shafts
Crankshaft Pulleys
Damper Guard
Flexible Coupling and Guards
Optional
Green Passport Documentation
Spray Shielding
Optional
Special Appearance Packages with Chrome Covers
Yacht Class Finish
Optional
Air Starting Motor Options
Battery Sets - 24 Volt - Dry
Battery Rack
Optional
Shrink Wrap Protection
Storage Preservation with Glycol Solution/Vapor Corrosion Inhibitor
Export Boxing
Export Packaging
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