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C7.1 High Performance Propulsion Engine

At a glance data:

Power Range:
400 - 500 bhp (298 - 373 bkW)
Speed Range:
2900 rpm
Rotation from Flywheel End:
Counterclockwise
Bore:
4.13in

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.

Category:
High Performance Propulsion and Maneuvering Solutions

Brand:
Caterpillar

Ratings

Power Range:
400 - 500 bhp (298 - 373 bkW)

Engine Specifications

Speed Range:
2900 rpm
Rotation from Flywheel End:
Counterclockwise
Bore:
4.13in
Stroke:
5.31in
Aspiration:
Turbocharged - Aftercooled
Displacement:
428in³
Configuration:
In-line 6, 4-Stroke-Cycle Diesel
Emissions:
IMO II, U.S. EPA Tier 3, RCD II, China II

Dimensions & Weights

Width - Engine:
31.4in
Height:
34.5in
Engine Dry Weight - Approximate:
1676lb
Length - Engine:
43.1in

Standard Equipment

exhaust system

  • Water cooled turbocharger and exhaust manifold

fuel system

  • Common rail fuel system
  • Fuel cooler
  • Electric fuel priming pump

cooling system

  • Corrosion resistant sea water aftercooler
  • Gear driven sea water pump (rubber impeller)
  • Fin and tube type jacket water heat exchanger

starting system

  • Starter motors - 12V or 24V

general

  • Closed crankcase ventilation system
  • Integral engine oil cooler
  • Vibration damper and guard
  • Self-tensioning multi-vee alternator drive belt

mounting system

  • Front and rear engine mounting brackets

Optional Equipment

optional attachements

  • Transmission gear oil cooler (engine mounted)

general

  • Alternators - 24V 140 amp - 12V 175 amp
  • Instrument Panels
  • Glow plugs
  • Primary fuel filter/water separator (remote mount)
  • Selection of factory-fitted marine transmissions and oil hoses
  • Triple groove PTO pulley (crankshaft mounted)
  • Flexible fuel hoses

cooling system

  • Jacket water heater
  • Cabin heater (calorifier) connections

exhaust system

  • 6" water cooled exhaust elbow

mounting system

  • Isolation mounts

lube system

  • Right-hand and high level left hand oil dipsticks