Cat C12
Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. There is also a wide range of optional equipment available to meet the needs of your marine commercial or pleasure craft application.
Specifications
Power Rating
| Power Range | 340-490 bhp (254-366 bkW) |
Engine Specifications
| Speed Range | 1800-2300 rpm |
| Emissions | IMO I, IMO II |
| Aspiration | TA |
| Bore | 130 mm |
| Stroke | 150 mm |
| Displacement | 12 l |
| Rotation from Flywheel End | Counterclockwise |
| Configuration | In-line 6, 4-Stroke-Cycle Diesel |
Dimensions & Weights
| Width | 969 mm |
| Length | 1574 mm |
| Dry Weight | 1174 kg |
| Height | 1005 mm |
Spec Sheet - 669 mhp (492 bkW) @ 2300 rpm
Download (PDF)Benefits & Features
Adem iii control system
More control inputs and outputs, capacity for additional features, additional monitoring capabilities, expansion capability for future enhancements
Most advanced electronic control system
Adjustment free control of engine speed, customer defined operating characteristics, protection and warning system, optional display systems available
Future enhancement capability
The electronic control system has additional capacity for future enhancements to ensure a long useful engine life.
Redesigned exhaust manifold
Provides a smoother passage for improved exhaust gas flow to the turbocharger which leads to more usable energy and lower exhaust temperatures.
Easy replacement for 3196
The C12 has the same physical size, same footprint, and the same connection points as the 3196 engine as well the same optional attachments.
Optional monitoring system
Caterpillar offers several “plug and play” monitoring systems which display everything from the basic engine operating parameters to engine load factor and trip totals. Ask your local Caterpillar dealer for additional information on our Marine Power Display (MPD), Marine Analog Power Display (MAPD), and our Engine Vision Display (EVD).
Product support
Trained technicians at over 1800 authorized service locations worldwide support Caterpillar products. Use our Internet Dealer Locator www.cat.com to identify the Caterpillar dealer location nearest to you.
Warranty
C-12 Marine Propulsion engines used in commercial applications are covered for 12 months from the date of delivery to the end user. Engines used in non-revenue producing pleasure craft applications are covered for 24 months, unlimited hours, from the date of delivery. Concurrently, specific engine components are covered for 60 months, unlimited hours, from the date of delivery to the end user.
Extended service coverage (esc)
Optional engine protection coverage for up to 60 months from date of delivery may be purchased through your local Caterpillar dealer.
