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Overview

The C12.9 marine propulsion engine is ideal for high performance marine applications including yachts, fishing vessels, military vessels, governmental vessels and various other commercial high performance marine applications. The C12.9 is designed to be integrated with both the Cat Three60 Precision Control shaft line maneuvering and engine control solution as well as other marine industry throttle controls. The electronically-controlled C12.9 is offered in two power ratings: 850 mhp at 2300 rpm and 1000 mhp at 2300 rpm. Both ratings meet EPA Tier 3, IMO II, EU Recreational Craft Directive and EU Stage IIIA regulations. In addition to high power density, the C12.9 offers high torque at low engine speeds and fast acceleration throughout the entire engine speed range due to its air system design of integrated series turbochargers and a supercharger.

Ratings

Units:
Power Range 850-1000 mhp, 838-985 bhp, 625-735 bkW 850-1000 mhp, 838-985 bhp, 625-735 bkW Less

Engine

Speed Range 2300 rpm 2300 rpm Less
Emissions EPA Tier 3, IMO II, EU Stage IIIA EPA Tier 3, IMO II, EU Stage IIIA Less
Aspiration TA TA Less
Bore 5.31 in 135.0 mm Less
Stroke 5.9 in 150.0 mm Less
Displacement 787.0 in3 12.9 L Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Configuration In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel Less

Dimensions & Weights

Length of Engine 57.6 in 1463.0 mm Less
Width of Engine 43.7 in 1110.0 mm Less
Height of Engine 42.7 in 1085.0 mm Less

C12.9Standard Equipment

Electronically controlled supercharger

Series turbochargers with heat shield

Watercooled exhaust manifold

Dual aftercoolers

Closed crankcase ventilation system

Thermostats and housing

Gear-driven sea water pump with bronze impeller

Common rail fuel system

Plate-type heat exchanger

Engine oil cooler

Engine-mounted fuel cooler

Vibration damper and guard

Grid heater

Electric fuel priming pump

Seawater pump outlet pressure sensor

Water-in-fuel detection switch

Exhaust gas stack temperature sensor

Coolant level sensor

C12.9Optional Equipment

Alternators
  • 24V 120 amp
  • 24V 160 amp
  • 12V 200 amp

Transmission gear oil cooler

Transmission sensor packages for on- or-off-vessel monitoring

Instrument panel – MECP I

Electric starting motor
  • 12V
  • 24V

Power Density

High power density

Electronic control system

Industry-leading torque and throttle response at low speed

Operation

Smooth, quiet operation throughout the entire operating range

Ventilation system

Closed crankcase ventilation system improves engine room cleanliness

Common rail fuel system

Common rail fuel system enables optimum combustion, low emissions and reduced noise

Engine Control Panel

Available on-engine control panel with “Start,” “Stop,” and display for engine diagnostics

Inlet Air Heater

Inlet air heater for improved cold weather startability

Aftercoolers

Low maintenance (fresh water/coolant) aftercoolers

Electrical Advantages

12V or 24V electrical system

Remote Monitoring

gplink ready for remote engine and vessel monitoring