US
Metric

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

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

Engine

Speed Range
2300 rpm
Configuration
In-line 6, 4-Stroke-Cycle Diesel
Aspiration
TA
Bore
5.31 in
135.00 mm
Stroke
5.90 in
150.00 mm
Displacement
787.00 in3
12.90 L
Rotation from Flywheel End
Counterclockwise
Emissions
EPA Tier 3, IMO II, EU Stage IIIA

Dimensions & Weights

Length of Engine
57.60 in
1463.00 mm
Width of Engine
43.70 in
1110.00 mm
Height - Engine
42.70 in
1085.00 mm

Ratings

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

Engine

Emissions
EPA Tier 3, IMO II, EU Stage IIIA
Bore
5.31 in
135.00 mm
Stroke
5.90 in
150.00 mm
Displacement
787.00 in³
12.90 l

Dimensions & Weights

Length - Engine
57.60 in
1463.00 mm
Width - Engine
43.70 in
1110.00 mm
Features

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

Standard 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
Optional Equipment
  • Alternators
    • 24V 120 amp
    • 24V 160 amp
    • 12V 200 amp
  • Electric starting motor
    • 12V
    • 24V