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.
Product Images
Product Videos
Virtual Product Tour (VPT)
360° Exterior View (HTML)
Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 803 - 1136 bhp, 599 - 847 bkW | ||||
| Application | text | Yachting | ||||
| Speed Range | text | 2300 rpm |
Documents & Spec Sheets
Features & Benefits
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
Complete Specifications
Ratings
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 803 - 1136 bhp, 599 - 847 bkW | ||||
| Application | text | Yachting | ||||
| Speed Range | text | 2300 rpm | ||||
| Emissions | text | EPA Tier 3, IMO II | ||||
| Aspiration | text | TA,TTA | ||||
| Bore | measurement | 5.7 | in | 145.0 | mm | |
| Stroke | measurement | 7.2 | in | 183.0 | mm | |
| Displacement | measurement | 1106.0 | in³ | 18.1 | l | |
| Rotation from Flywheel End | text | Counterclockwise | ||||
| Configuration | text | In-line 6, 4-Stroke-Cycle Diesel | ||||
| Maximum Height | measurement | 51.2 | in | 1300.0 | mm | |
| Maximum Dry Weight | measurement | 4299.0 | lb | 1950.0 | kg | |
| Maximum Width | measurement | 47.4 | in | 1204.0 | mm | |
| Maximum Length | measurement | 76.0 | in | 1931.0 | mm | |
| Minimum Length | measurement | 73.0 | in | 1854.0 | mm | |
| Minimum Dry Weight | measurement | 4000.0 | lb | 1814.3 | kg | |
| Minimum Width | measurement | 44.6 | in | 1134.0 | mm | |
| Minimum Height | measurement | 47.2 | in | 1198.0 | mm |
Standard Equipment
AIR INLET SYSTEM
- Aftercooler - sea water, corrosion resistant
- Air cleaner/fumes disposal (closed system)
- Turbocharger, jacket water cooled
- Front-down and rear-down aftercooler condensate drains
CONTROL SYSTEM
- Electronic diagnostics and fault logging
- Cold mode start strategy
- Engine and transmission monitoring (speed, temperature, pressure)
- Electronic fuel/air ratio control
- 70-pin customer connector
- Engine Protection Mode for High Ambient Conditions
- Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA +/-)
COOLING SYSTEM
- Sea water pump, rubber impeller, self-priming, gear driven
- Sea water aftercooled
- Jacket water pump, gear driven
- JW Heat Exchanger - Titanium plate with integral fuel cooler expansion tank, and thermostat housing (fully open temp 92C)
- Coolant recovery system
EXHAUST SYSTEM
- Water-cooled exhaust manifold & turbocharger
- 114.3 mm (4.5 in) ID round flanged exhaust outlet
FLYWHEELS & FLYWHEEL HOUSINGS
- Flywheel Housing, SAE No. 1
- Flywheel, 18 inch, 113 teeth
- SAE standard rotation
FUEL SYSTEM
- Fuel filter, RH service on Port, LH service on Starboard
- Fuel transfer pump
- Fuel priming pump
- Hybrid fuel line design
LUBE SYSTEM
- Crankcase breather
- Oil cooler
- Oil filter, spin-on, low profile, RH service on Port, LH service on
- Oil pan, center sump
- Dipstick, RH service on Port, LH service on Starboard
- Oil pump, gear driven
POWER TAKE-OFFS
- Hydraulic pump drive, SAE A, 11-tooth spline, 46 ft-lbs max torque, counterclockwise as viewed from the front of the engine with 1.41 x engine speed
PROTECTION SYSTEM
- A4 ECM Electronic Engine Monitoring System provides customer programmable engine de-rate strategies to protect against adverse operating conditions
GENERAL
- Front damper guard
- Lifting eyes
- RH or LH service options
- Upper rear-facing customer wiring connector and Service Tool connection
Optional Equipment
CHARGING SYSTEM
- Battery Chargers
- Charging Alternators 24 Volt 70/105 AMP
- Alternator Mounting Group
FUEL SYSTEM
- Primary Fuel Filter / Water Separator
- Primary Fuel Filter
LUBE SYSTEM
- Transmission Oil Cooler
POWER TAKE-OFFS
- Crankshaft Pulleys
STARTING SYSTEM
- Electric Starting Motor - Single 24 Volt
- Battery Sets - 24 Volt - Dry
CONTROL SYSTEM
- MECP I
INSTRUMENTATION
- OEM Wiring Harness
- Engine to Engine Harness
- Instrument Panels
- Transmission Sensors