Cat 6CM20C


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Engine Specifications
Minimum Rating 1230 kV·A
Maximum Rating 2050 kV·A
Emissions IMO Tier II
Aspiration Turbocharged-Aftercooled
Bore 7.87 in
Displacement 3442 in³
Engine Control Electronic
Generator Set Control Electronic
Stroke 11.81 in
Weight 41446 lb
Height 126.7 in
Length 239.1 in
Width 66.14 in


Engine Design

Engine Design
World-class reliability and durability - Incorporates years of proven component reliability and - durability in marine industry n Medium speed long-stroke engine design n Ideal configuration for dynamically positioned semisubmersible rigs and drillships n Compact cylinder head design n Nodular cast-iron block with integrated ducts for lubricating oil and charge air n Segmental camshaft design n 25° tilt capability in all directions n Engine design based on the higher requirements of heavy fuel oil n High efficiency turbocharger n Cylinder liner, only cooled outside the engine block n Engine control terminal with analog instrumentation in robust cast casing n Connecting rod, oblique split design n Compact module for lower valve drives and injection pump drives with cam followers n Flexible Camshaft Technology (FCT)

Ease of Installation

Ease of Installation
- Standard modular design allows for ease of installation and reduced complexity - Installation-friendly, due to pumps and filters installed on the engine - Cooling water system with simple plug-in connections - Full range of factory-installed engine attachments allows customization and reduction in installation time

Packaging Concept

Packaging Concept
Assembled, tested, and validated as a package to minimize package vibration and maximize component life

Improved Serviceability

Improved Serviceability
- Large inspection openings allow for convenient access to core engine internals for easier serviceability - Core engine components designed for reconditioning and reuse at overhaul - Worldwide dealer network with factory-trained technicians means that parts and support are never out of reach - Simplified parts spectrum by using single-pipe exhaust gas ducting

Web Site

Web Site
For all your petroleum power requirements, visit



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