C7.1

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Meet the new C7.1 Commercial Propulsion Engine Meet the new C7.1 Commercial Propulsion Engine
C7.1 Marine Propulsion Engine Walkaround C7.1 Marine Propulsion Engine Walkaround
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SPECS SUMMARY

Power Range 400 - 500 bhp (298 - 373 bkW)
Speed Range 2900 rpm
Emissions IMO II, U.S. EPA Tier 3, RCD II, China II
Rotation from Flywheel End Counterclockwise
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.

Specifications

Power Range 400 - 500 bhp (298 - 373 bkW)
Speed Range 2900 rpm
Emissions IMO II, U.S. EPA Tier 3, RCD II, China II
Rotation from Flywheel End Counterclockwise
Bore 4.13 in (105 mm)
Stroke 5.31 in (135 mm)
Aspiration Turbocharged - Aftercooled
Displacement 428 in³ (7.01 l)
Configuration In-line 6, 4-Stroke-Cycle Diesel
Width - Engine 31.4 in (798 mm)
Height 34.5 in (876 mm)
Engine Dry Weight - Approximate 1676 lb (760 kg)
Length - Engine 43.1 in (1095 mm)

Benefits and Features

  • 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

Standard Equipment

  • Water cooled turbocharger and exhaust manifold
  • Common rail fuel system
  • Fuel cooler
  • Electric fuel priming pump
  • Corrosion resistant sea water aftercooler
  • Gear driven sea water pump (rubber impeller)
  • Fin and tube type jacket water heat exchanger
  • Starter motors - 12V or 24V
  • Closed crankcase ventilation system
  • Integral engine oil cooler
  • Vibration damper and guard
  • Self-tensioning multi-vee alternator drive belt
  • Front and rear engine mounting brackets

Optional Equipment

  • Transmission gear oil cooler (engine mounted)
  • 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
  • Jacket water heater
  • Cabin heater (calorifier) connections
  • 6" water cooled exhaust elbow
  • Isolation mounts
  • Right-hand and high level left hand oil dipsticks