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Caterpillar
3512C
The Cat® 3512C marine propulsion engine delivers results under hard working conditions. This engine family is designed to maximize the performance of your invested dollars with a wide range of available power ratings, standard and reverse rotation configurations, no required aftertreatment, and efficient fuel consumption. This engine is available as IMO II or China Stage II emissions compliant making it an excellent propulsion engine choice for Tug, Governmental, and other workboat applications.
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Details
Specifications
Power Rating
| Spec | Value |
|---|---|
| Power Range | 1281 - 2552 bhp 1281 - 2552 bhp |
Engine Specifications
| Spec | Value |
|---|---|
| Speed Range | 1200 - 1800 rpm 1200 - 1800 rpm |
| Emissions | IMO II, China Stage II IMO II, China Stage II |
| Aspiration | Twin Turbocharged Aspirator 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 Counterclockwise or Clockwise |
| Configuration | V 12, 4-Stroke-Cycle Diesel V 12, 4-Stroke-Cycle Diesel |
Dimensions & Weights
| Spec | Value |
|---|---|
| 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