3512B COMMERCIAL MARINE PROPULSION ENGINE
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The Cat 3512B marine engine includes the Advanced Diesel Engine Management System II, Control Monitoring Protection System, Customer Communication Module, and Digital Voltage Regulator. Benefits include improved fuel economy, reduced visible and gaseous emissions, enhanced diagnostic and monitoring capabilities, and increased rated output with no reduction in reliability.
SPECIFICATIONS
Power Range1100-2250 bhp (820-1678 bkW)
Speed Range1200-1925 rpm
ConfigurationVee 12, 4-Stroke-Cycle Diesel
power rating
Power Range1100-2250 bhp (820-1678 bkW)
engine specifications
Speed Range1200-1925 rpm
ConfigurationVee 12, 4-Stroke-Cycle Diesel
AspirationTTA
Bore170.0 mm
Stroke190.0 mm
Displacement51.8 L
Rotation (from flywheel end)Counterclockwise or Clockwise
EmissionsIMO I
dimensions
WeightsMinimum Length
2819 mm
Dimensions Weights
maximum length
121 mmDimensions
weights
Minimum Width1703 mm
dimensions
WeightsMaximum Width
1785 mm
Dimensions Weights
minimum height
1806 mmDimensions
weights
Maximum Height2091 mm
dimensions
WeightsMaximum Dry Weight
6537 kg
Dimensions Weights
minimum dry weight
6537 kg
3512B STANDARD EQUIPMENT
- air inlet system
regular duty air cleaners, dual turbochargers, 152 mm (6 in) OD straight connection, corrosion resistant coated separate circuit aftercooler core - control system
dual Advanced Diesel Engine Management (ADEM II) modules with electronically controlled unit injectors - exhaust system
dry gas-tight exhaust manifolds with thermolaminated heat shields, dual turbochargers with watercooled bearings and thermo-laminated heat shields, vertical exhaust outlet, 203 mm (8 in) ID round flanged outlet - fuel system
electronically controlled unit injectors, RH fuel filter with service indicators, fuel transfer pump - instrumentation
RH electronic instrument panel with analog gauges and digital display of data for: oil and fuel pressure, oil and fuel filter differential, system DC voltage, exhaust and water temperature, air inlet restriction; digital display only for: tachometer, service meter, fuel consumption (total and instantaneous); start/stop switch - lube system
top mounted crankcase breather, deep sump oil pan, RH oil filler and dipstick, RH oil filter, gear type oil pump - mounting system
ledge type engine length rails, 203 x 203 mm (8 x 8 in) - power takeoffs
accessory drive on standard rotation engines: lower RH, lower LH; on opposite rotation engines: upper and lower RH and upper and lower LH; twosided front housing - protection system
ADEM II Electronic Monitoring System with customer programmable alarm, shutdown, and deration strategies; emergency stop pushbutton - general
front and rear lifting eyes, Caterpillar yellow paint, vibration damper and guard - flywheel and flywheel housing
SAE No. 00 flywheel (183 teeth) and SAE No. 00 flywheel housing - cooling system
auxiliary fresh water pump on SCAC engines, non-self-priming centrifugal auxiliary sea water pump for heat exchanger engines only, expansion tank, gear-driven centrifugal jacket water pump, oil cooler, keel cooling connections for keel cooled engines, thermostats and housing with 92° C (198° F) full open temperature
3512B OPTIONS
- air inlet system
Air Cleaner Removal
Remote Air Inlet Adapters - charging system
Battery Chargers
Charging Alternators - control system
Throttle Position Sensor
Throttle synchronization - cooling system
Water level switch gauge
Coolant level sensors
Connections
Keel cooling conversions
Heat exchangers
Auxiliary water pumps
Sea water pump removal
Coolant shunt tanks
Air separator
Marine gear cooling - exhaust system
Horizontal Exhaust Outlet
Flexible fittings
Elbows
Flanges
Flange and exhaust expanders
Mufflers - fuel system
Fuel Cooler
Fuel priming pumps
Flexible fuel lines
Rigid Fuel Lines
Primary fuel filter
Fuel level switch - instrumentation
PL1000T Communication Module
PL1000E Communication Module
Customer Interface Box
Thermocouples
Remote panel display
Remote cylinder temperature display
Pilot house instrument panels
Marine gear sensors
Engine vision display system - lube system
Oil Pan
Oil Pan Accessories
Sump Pumps
Prelubrication Options
Lubricating Oil
Lube System - mounting system
Engine supports
Vibration Isolation Mountings - power takeoffs
Flexible coupling and guards
Upper left hand front location:
Upper right hand front location:
Upper right hand rear location:
Lower left hand front location:
Lower left hand rear location:
Front housing accessory drives
UPPER LH ACCESSORY DRIVE
UPPER RH ACCESSORY DRIVE
Front power take offs
Crankshaft pulleys
Damper guard removals - protection system
Air inlet shutoffs
Switches and contactors
Explosion relief valve
Sensors - special appearance
Chrome Plated Relief Valves
Black Air Cleaners - starting system
Starting motors or barring device
Air starting motor options:
Starting aids
Battery sets - 24 volt - Dry
Battery rack - general
Tool set
Caterpillar Datalink wire