Marine Propulsion Engines

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 Range280 bhp - 425 bhp (209 bkW - 317 bkW)
Speed Range2300 - 2700 rpm
EmissionsU.S. EPA Tier 3, IMO II, RCD II, China II
ConfigurationIn-line 6, 4-stroke-cycle diesel
C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

Specifications

Power Range280 bhp - 425 bhp (209 bkW - 317 bkW)
Speed Range2300 - 2700 rpm
EmissionsU.S. EPA Tier 3, IMO II, RCD II, China II
ConfigurationIn-line 6, 4-stroke-cycle diesel
Displacement428 in³ (7.01 l)
AspirationTurbocharged-aftercooled
GovernorElectronic (A5E2 V2 ECM)
Flywheel HousingSAE No. 03
Bore4.13 in (105 mm)
Stroke5.31 in (135 mm)
Refill Capacity20 L (5.3 gal)
Oil Change Interval500 hrs
RotationCounterclockwise from the flywheel end
CoolingHeat exchange or keel cooled
Dry Weight1676 lb (760 kg)
Height34.5 in (876 mm)
Length43.1 in (1095 mm)
Width31.4 in (798 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
  • 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 seawater pump (rubber impeller)
  • Fin and tube-type jacket water heat exchanger
  • Front and rear engine mounting brackets

Optional Equipment

  • Marine Classification Society (MCS) Approval ABS, BV, CCS, CRS, *DNV-GL, IRS, LR, Class NK, PRS, RINA (*DNV-GL approval available for keel-cooled engines only)
  • SOLAS double wall high-pressure fuel lines
  • Engine mounted bilge pumps and auxiliary water pumps with electromagnetic clutch
  • Engine-mounted secondary alternator - 24V 55 amp or 12V 100 amp
  • Analogue gauge displays
  • Transmission gear oil cooler (engine mounted)
  • Glow plugs
  • Jacket water heater
  • Various 5" and 6" water cooled exhaust elbow configurations
  • Cabin heater (calorifier) connections
  • Right-hand and high-level left-hand oil dipsticks
  • Mechanical throttle converter for repower