3512C

Bore: 6.69 in / 170 mm
Stroke: 7.48 in / 190 mm
Stroke - HD: 8.46 in / 215 mm

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.

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3512C Propulsion Engine Specsheet

Specifications
Equipment

Power Rating
Power Range	1281 - 2552 bhp

Engine Specifications
Speed Range	1200 - 1800 rpm
Emissions	IMO II, China Stage II
Aspiration	Twin Turbocharged Aspirator
Bore	6.69 in / 170 mm
Stroke	7.48 in / 190 mm
Stroke - HD	8.46 in / 215 mm
Displacement	3161 in³ / 51.8 l
Displacement - HD	3574 in³ / 58.6 l
Rotation from Flywheel End	Counterclockwise or Clockwise
Configuration	V 12, 4-Stroke-Cycle Diesel

Dimensions & Weights
Maximum Length	102 in / 2590 mm
Maximum Width	80.2 in / 2037 mm
Minimum Dry Weight	14400 lb / 6532 kg
Minimum Width	80.2 in / 2037 mm
Minimum Height	75 in / 1904 mm
Minimum Length	102 in / 2590 mm
Maximum Height	75 in / 1904 mm
Maximum Dry Weight	16340 lb / 7411 kg
Length - Engine	111.1 in / 222.2 mm

Standard Equipment

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
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:
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
- Rails, engine mounting, ledge type, 203 mm x 203 mm (8 in x 8 in) or Front Trunnion
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

Optional Equipment

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

3512C

Standard Equipment

Optional Equipment

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