C12

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Key Specifications

 

Power range

340-490 bhp (254-366 bkW)

 

Speed range

1.800-2.300 rpm

 

Emissions

IMO I, IMO II

Except for the power rating of 497 mph (490 bhp) at 2,300 rpm, which complies with IMO I emissions standards, all Cat® C12 diesel marine propulsion engines, with power ratings of 340-490 bhp (254- 366 bkW) at 1,800-2,300 rpm, meet IMO II emissions standards.

One of the main strengths of the C12 engine is its electronic unit injection fuel system, which ensures:

  1. High performance;
  2. a consumer economy;
  3. a low environmental impact.

 

The C12 engine is highly customizable as it provides a vast choice of equipment on demand to satisfy every request and need.

What are you waiting for? Ask for more information.

Why Choosing It

Control system III ADEM

 

It includes the III ADEM control system which allows:

 

  1. multiple control inputs and outputs
  2. capacity for additional functions
  3. additional monitoring features
  4. possibility of expansion for future upgrades

 

Electronic control system

 

The control system is electronic and very advanced. It presents:

 

  1. engine speed control free from regulation
  2. user-defined operating characteristics
  3. warning and protection system
  4. display systems on demand

 

Possibilità di potenziamenti futuri

 

Customization is at its maximum thanks to the control system which provides the possibility of future upgrades to guarantee a longer useful life of the engine.

 

Redesigned exhaust manifold

 

The exhaust manifold is redesigned and allows for smoother passage to facilitate the flow of exhaust gases to the turbocharger. Thanks to it there is more usable energy at lower exhaust temperatures.

 

Easy replacement for 3196

 

It is easily replaceable with the 3196 motors, boasting the same physical dimensions, the same size and the same connection points, as well as the same accessories on demand.

 

Monitoring System on Demand

 

The monitoring system is on demand, as Caterpillar offers various “plug and play” monitoring systems thanks to which it is possible to consult the parameters of the basic operation of the engine, its load factor and the totals relating to the route. You can contact us for further information on our Marine Power Display (MPD), Marine Analog Power Display (MAPD) and Engine Vision Display (EVD) systems.

Warranty and Extended Maintenance Service

For C-12 marine propulsion engines used in commercial applications the warranty provides coverage for 12 months from the date of delivery to the end user. Engines used in non-commercial recreational applications are covered for 24 months, with no limit on hours, from the date of delivery. At the same time, specific engine components are covered for 60 months, without limit of hours, from the date of delivery to the end user. You can purchase an on-demand engine protection policy for up to 60 months from the delivery date through your Cat dealer.

Technical Features

DIMENSIONS AND WEIGHTS

 

NOMINAL POWER

 

Power range 340-490 bhp (254-366 bkW)

TECHNICAL SPECIFICATIONS OF THE ENGINE

 

Speed range 1.800-2.300 rpm
Emissions IMO I, IMO II
Suction TA
Bore 130 mm
Stroke 150 mm
Displacement 12 l
Rotation from the flywheel side side Anticlockwise
Configuration Diesel, 4-stroke, and 6-cylinder in line

DIMENSIONS AND WEIGHTS

 

Width 969 mm
Length 1574 mm
Dry weight 1174 kg
Height 1005 mm

Standard Equipment

The engine includes standard equipment, already included in the purchase package. Let’s see them together.

 

AIR INTAKE SYSTEM

Aftercooler – seawater, corrosion resistant, Vapor suppression/air filter (closed system), Turbocharger, jacket water cooled

CONTROL SYSTEM

Electronic regulation, Cold mode starting strategy, Electrical compensation for fuel temperature, Programmable idle, Electronic diagnostics and fault recording, Engine and transmission monitoring (rpm, temperature, pressure), Air/fuel ratio control, Emergency stop switch (A and B ratings only)

COOLING SYSTEM

Thermostat and box, Jacket water pump; gear driven, Sea water pump; rubber impeller; self-priming; gear driven, Integrated heat exchanger/expansion tank; removable tube bundle; removable copper-nickel pipes, Keel cooling – combined circuit (includes threaded pipe flange kit)

EXHAUST SYSTEM

Water-cooled manifold and turbocharger

FLYWHEELS AND RELATED HOUSINGS

They fly; SAE No. 1; 113 teeth, flywheel housing; SAE No. 1 (10 degree buffer slope), SAE standard rotation

FUEL SYSTEM

Fuel filter; right maintenance at the opening, left maintenance on the starboard; Fuel delivery pump, Fuel priming pump, Flexible fuel lines

INSTRUMENTATION

  • Electric hour meter

LUBRICATION SYSTEM

Crankcase breather, Oil cooler, Oil filter; screwed up; RH maintenance at opening, RH maintenance on starboard, Oil filler neck, Dipstick, RH maintenance at opening, RH maintenance on starboard, Oil pump; with gears

SUPPORT SYSTEM

  • Front support

POWER TAKE-OFFS

Hydraulic pump transmission; SAE A; 11 spline teeth, maximum torque 57 ft-lbs; counterclockwise viewed from rear of engine looking into pump drive and rotations 1.41 x engine speed, Crankshaft Pulley; single groove 345 mm (13.6 in); width 15.88 mm (0.63 in)

PROTECTION SYSTEM

  • Electronic stop; 12 or 24V; to excitement

GENERAL INFORMATIONS

  • Vibration damper, Lifting rings, RH or LH maintenance options, Documentation, Adjustable engine harness, ECAP connection and user harness connector facing upper rear, Electronic installation kit (connectors, pins, sockets)

Equipment on Demand

Upon request, the following equipment can be added to the engine:

 

AIR INTAKE SYSTEM

  • Low air intake pipe, protection (air intake pipe)

CHARGING SYSTEM

  • Charging alternators, voltmeters, voltmeter holder, alternator mounting assembly

COOLING SYSTEM

  • Seawater pump, coolant recovery tank, flange kit

EXHAUST SYSTEM

  • Hose Fitting, Elbow, Dry Elbow, Water Cooled Elbow, Exhaust Connection, Exhaust Outlet Pipe, Exhaust Outlet Flange, Rain Cap, Muffler

FUEL SYSTEM

  • Fuel cooler, fuel fittings, primary fuel filter, primary fuel/water separator

INSTRUMENTATION

  • OEM Wiring Harness, Engine to Engine Wiring Harness, Digital Tachometer, Tachometer Mount, Magnetic Sensor, 4-Hole RH Instrument Cluster, 4-Hole LH Instrument Cluster, Marine Power Display System, Marine Power Display Unit (for additional monitoring stations), Marine Power Bracket Display, wiring, transmission sensors

LUBRICATION SYSTEM

  • Manual extraction pump, transmission oil cooler

SUPPORT SYSTEM

  • Anti-vibration insulators

POWER TAKE-OFFS

  • Crankshaft pulley, front hub carrier, front hub carrier and pulley

STARTING SYSTEM

  • Air Pressure Regulator, Air Start Muffler, Muffler, Starter Switch, Jacket Water Heater, Battery Packs (24V – Dry)

GENERAL INFORMATIONS

  • Wiring Harness Removal, Belt Guard – Alternator, Belt Guard – Alternator Pulley, Filter Cover Kit

PACKAGING

  • Overseas shipping protection, engine protective cover, storage protection, export packaging

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