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

C7.1 High Performance Propulsion Engine

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

Specifications

Units for specifications

Power Rating

Power Range 280 bhp - 425 bhp (209 bkW - 317 bkW)

Engine Specifications

Speed Range 2300 - 2700 rpm
Emissions U.S. EPA Tier 3, IMO II, RCD II, China II
Configuration In-line 6, 4-stroke-cycle diesel
Displacement 428 in³ 7.01 l
Aspiration Turbocharged-aftercooled
Governor Electronic (A5E2 V2 ECM)
Flywheel Housing SAE No. 03
Bore 4.13 in 105 mm
Stroke 5.31 in 135 mm
Refill Capacity 20 L (5.3 gal)
Oil Change Interval 500 hrs
Rotation Counterclockwise from the flywheel end
Cooling 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

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

Videos

  • Meet the new C7.1 Commercial Propulsion Engine
  • C7.1 Marine Propulsion Engine Walkaround
C7.1 High Performance Propulsion Engine

Documents