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C12

Commercial Propulsion Engines

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.

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Power Range 340-490 bhp (254-366 bkW)
Speed Range 1800-2300 rpm
Emissions IMO I, IMO II
Aspiration TA
Availability Contact Dealer
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C12
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FEATURES & BENEFITS

ADEM III Control System

More control inputs and outputs, capacity for additional features, additional monitoring capabilities, expansion capability for future enhancements Read more

Most Advanced Electronic Control System

Adjustment free control of engine speed, customer defined operating characteristics, protection and warning system, optional display systems available Read more

Future Enhancement Capability

The electronic control system has additional capacity for future enhancements to ensure a long useful engine life. Read more

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. Read more

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. Read more

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. A... Read more

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 Caterpil... Read more

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... Read more

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. Read more

SPECIFICATIONS FOR C12

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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

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