C7.1

C7.1

C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

Power Range 280 bhp - 425 bhp (209 bkW - 317 bkW) 280 bhp - 425 bhp (209 bkW - 317 bkW)
Speed Range 2300 - 2700 rpm 2300 - 2700 rpm
Emissions U.S. EPA Tier 3, IMO II, RCD II, China II U.S. EPA Tier 3, IMO II, RCD II, China II

Technicial Specifications

Power Rating
Power Range 280 bhp - 425 bhp (209 bkW - 317 bkW) 280 bhp - 425 bhp (209 bkW - 317 bkW)
Engine Specifications
Speed Range 2300 - 2700 rpm 2300 - 2700 rpm
Emissions U.S. EPA Tier 3, IMO II, RCD II, China II U.S. EPA Tier 3, IMO II, RCD II, China II
Configuration In-line 6, 4-stroke-cycle diesel In-line 6, 4-stroke-cycle diesel
Displacement 428 in³ 7.01 l
Aspiration Turbocharged-aftercooled Turbocharged-aftercooled
Governor Electronic (A5E2 V2 ECM) Electronic (A5E2 V2 ECM)
Flywheel Housing SAE No. 03 SAE No. 03
Bore 4.13 in 105 mm
Stroke 5.31 in 135 mm
Refill Capacity 20 L (5.3 gal) 20 L (5.3 gal)
Oil Change Interval 500 hrs 500 hrs
Rotation Counterclockwise from the flywheel end Counterclockwise from the flywheel end
Cooling Heat exchange or keel cooled Heat exchange or keel cooled
Dimensions & Weights
Dry Weight 1676 lb 760 kg
Height 34.5 in 876 mm
Length 43.1 in 1095 mm
Width 31.4 in 798 mm

Advantages and Features

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

Standard Equipment

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

Optional Equipment

  • Fuel System
    • SOLAS double wall high-pressure fuel lines
  • General
    • Engine-mounted secondary alternator - 24V 55 amp or 12V 100 amp
    • Analogue gauge displays
    • Glow plugs
    • Mechanical throttle converter for repower
  • Cooling System
    • Transmission gear oil cooler (engine mounted)
    • Jacket water heater
    • Cabin heater (calorifier) connections
  • Exhaust System
    • Various 5" and 6" water cooled exhaust elbow configurations
  • Lube System
    • Right-hand and high-level left-hand oil dipsticks
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