Power System

Cat C18 High Performance Propulsion Engine – Recreational

The C18 marine propulsion engine has ratings for recreational applications that meet U.S. EPA Tier 3, IMO II, and EU Stage IIIA Regulations. This marine engine incorporates the latest core engine system innovations to provide maximum benefits in power density, performance, emissions, and fuel efficiency. Not only is it equipped with engine monitoring and protection features, it is also compatible with Cat display and vessel control systems. With this engine comes the unmatched worldwide marine support network including Cat dealers and hundreds of authorized marine dealers. Their combined experience and expertise, products and services, backup and support allow your recreational pleasure craft to remain precisely that — a pleasure.

The C18 marine propulsion engine has ratings for recreational applications that meet U.S. EPA Tier 3, IMO II, and EU Stage IIIA Regulations. This marine engine incorporates the latest core engine system innovations to provide maximum benefits in power density, performance, emissions, and fuel efficiency. Not only is it equipped with engine monitoring and protection features, it is also compatible with Cat display and vessel control systems. With this engine comes the unmatched worldwide marine support network including Cat dealers and hundreds of authorized marine dealers. Their combined experience and expertise, products and services, backup and support allow your recreational pleasure craft to remain precisely that — a pleasure.

Equipment Highlights

Separate circuit aftercooling system
The primary advantage of the separate circuit aftercooling system (SCAC) is that no sea water circulates through the aftercooler
Emissions
EPA Tier 3 compliant, IMO II and EU IWW compliant
Cooling system
Heat exchanger and Keel cooled options for all ratings
Turbo Configurations
Single turbo configurations for all ratings
Competitive size and weight
Marine Certifications
All major MCS type approvals available from factory

Specs + Downloads

Specs
  • Speed Range: 2300 rpm
  • Emissions: EPA Tier 3, IMO II
  • Aspiration: TA,TTA
  • Bore: 5.7 in
  • Stroke: 7.2 in
  • Displacement: 1106 in³
  • Rotation from Flywheel End: Counterclockwise
  • Configuration: In-line 6, 4-Stroke-Cycle Diesel
  • Power Range: 803 - 1136 bhp, 599 - 847 bkW
  • Maximum Height: 51.2 in
  • Maximum Dry Weight: 4299 lb
  • Maximum Width: 47.4 in
  • Maximum Length: 76 in
  • Minimum Length: 73 in
  • Minimum Dry Weight: 4000 lb
  • Minimum Width: 44.6 in
  • Minimum Height: 47.2 in
  • Application: Yachting
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