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C7.1 High Performance Propulsion Engine
High Performance Propulsion and Maneuvering Solutions
High Performance Propulsion and Maneuvering Solutions (5)
3512C High Displacement Propulsion Engine 
Cat C18 High Performance Propulsion Engine – Recreational 
Cat C32 Marine Propulsion Engine High Performance Applications 
Cat C18 High Performance Propulsion Engine Overview
The C7.1 marine propulsion engineis ideal for recreational boating applications, specifically smaller vessels and motoryachts ranging from 25 -60 feet in size. The engine features a common rail fuel system enabling optimum combustion and low emissions. The engines provide noticeably quiet operation due to reduced combustion noise through advanced electronic control. Additionally, no visible smoke is emitted from the C7.1 engines during operation.
Key Features & Benefits
- Common rail fuel system enables optimum combustion and low emissions
- Reduced combustion noise through advanced electronic control
- 12V or 24V electrical system
- Compatible with Cat® displays and electronics
- Closed crankcase ventilation system improves engine room cleanliness
Key Features & Benefits
- Common rail fuel system enables optimum combustion and low emissions
- Reduced combustion noise through advanced electronic control
- 12V or 24V electrical system
- Compatible with Cat® displays and electronics
- Closed crankcase ventilation system improves engine room cleanliness
- Gear-driven jacket water pump and sea water pump for superior reliability
- Maintenance free valve train with hydraulic valve lash adjusters
- Self-priming fuel system ensures a smooth start every time
Ratings
- Power Range
- 298 bkW - 373 bkW (400 bhp - 500 bhp)
- Power Range
- 400 - 500 bhp (298 - 373 bkW)
Engine Specifications
- Speed Range
- 2900 rpm
- Emissions
- EPA Tier 3 Recreational, IMO II, RCD 2016
- Aspiration
- Turbocharged, aftercooled
- Bore
- 4.13in
- Stroke
- 5.31in
- Displacement
- 427.16in3
- Rotation (from flywheel end)
- Counterclockwise
- Configuration
- In-line 6, 4-Stroke-Cycle Diesel
- Aspiration
- Turbocharged - Aftercooled
- Bore
- 4.13in
- Configuration
- In-line 6, 4-Stroke-Cycle Diesel
- Displacement
- 428in³
- Emissions
- IMO II, U.S. EPA Tier 3, RCD II, China II
- Rotation from Flywheel End
- Counterclockwise
- Speed Range
- 2900 rpm
- Stroke
- 5.31in
Dimensions & Weights
- Length of Engine
- 54.9in
- Height
- 34.5in
- Width of Engine
- 31.4in
- Engine Dry Weight - Approximate
- 1676lb
- Height
- 34.5in
- Length - Engine
- 43.1in
- Width - Engine
- 31.4in
Standard/Optional Features
Standard Equipment:
-
- Standard Equipment
-
- Water cooled turbocharger and exhaust manifold
- Common rail fuel system
- Corrosion resistant sea water aftercooler
- Closed crankcase ventilation system
- Starter motors - 12V or 24V
- Fuel cooler
- Integral engine oil cooler
- Vibration damper and guard
- Electric fuel priming pump
- Self-tensioning multi-vee alternator drive belt
- Gear driven sea water pump (rubber impeller)
- Fin and tube type jacket water heat exchanger
- Front and rear engine mounting brackets
Optional Equipment:
-
- Optional Attachements
-
- Alternators - 24V 140 amp - 12V 175 amp
- Transmission gear oil cooler (engine mounted)
- Instrument Panels
- Glow plugs
- Jacket water heater
- 6" water cooled exhaust elbow
- Isolation mounts
- Primary fuel filter/water separator (remote mount)
- Selection of factory-fitted marine transmissions and oil hoses
- Cabin heater (calorifier) connections
- Triple groove PTO pulley (crankshaft mounted)
- Flexible fuel hoses
- Right-hand and high level left hand oil dipsticks
Take The Virtual Product Tour To Explore The Features And Benefits of the C7.1 High Performance Propulsion Engine
See how C7.1 compares against frequently compared products
C7.1 High Performance Propulsion and Maneuvering Solutions
- Configuration
- In-line 6, 4-Stroke-Cycle Diesel
- Bore
- 4.13 in
- Stroke
- 5.31 in
C7.1 High Performance Propulsion and Maneuvering Solutions
- Configuration
- In-line 6, 4-Stroke-Cycle Diesel
- Bore
- 4.13 in
- Stroke
- 5.31 in
C18 High Performance Propulsion and Maneuvering Solutions
- Configuration
- In-line 6, 4-Stroke-Cycle Diesel
- Bore
- 5.7 in
- Stroke
- 7.2 in
