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C7.1 Tier 3 / IMO II

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Overview

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

Dimensions & Weights

  • Length 43.1 in 1095.0 mm
  • Height 35.1 in 891.0 mm
  • Minimum Width 31.4 in 798.0 mm
  • Maximum Width 33.5 in 850.0 mm
  • Minimum Engine Dry Weight 1609.0 lb 730.0
  • Maximum Engine Dry Weight 1676.0 lb 760.0

Power Rating

  • Minimum Rating 280.0 BHP 208.0 bkW
  • Maximum Rating 425.0 BHP 317.0 bkW

Engine Specifications

  • Configuration In-line 6, 4-stroke-cycle diesel In-line 6, 4-stroke-cycle diesel
  • Emissions U.S. EPA Tier 3 / IMO II emissions certified (commercial), RCD 2016 compliant, EU Stage IIIA compliant, CCNR Stage II through reciprocity with EU Stage IIIA U.S. EPA Tier 3 / IMO II emissions certified (commercial), RCD 2016 compliant, EU Stage IIIA compliant, CCNR Stage II through reciprocity with EU Stage IIIA
  • Rated Engine Speed 2300 - 2700 rpm 2300 - 2700 rpm
  • Bore 4.13 in 105.0 mm
  • Stroke 5.31 in 135.0 mm
  • Displacement 428.0 in³ 7.01 l
  • Aspiration Turbocharged-aftercooled aspiration Turbocharged-aftercooled aspiration
  • Governor Electronic (A5E2 V2 ECM) Electronic (A5E2 V2 ECM)
  • Refill Capacity Lube Oil System w/Oil filter change: 20 L (5.3 gal) Lube Oil System w/Oil filter change: 20 L (5.3 gal)
  • Oil Change Interval 500 hrs 500 hrs
  • Cooling Heat exchanger or keel cooled Heat exchanger or keel cooled
  • Flywheel Housing SAE No. 03 with SAE 11.5 in flywheel SAE No. 03 with SAE 11.5 in flywheel
  • Rotation Counterclockwise from flywheel end Counterclockwise from flywheel end

Reliability & Durability

Superior response time and acceleration; 12V or 24V electrical system; Gear driven jacket water pump and sea water pump for superior reliability; Maintenance free valve train with hydraulic valve lash adjusters

Easy to use

Compatible with Cat® displays and electronics; Self priming fuel system ensures a smooth start every time

Environment friendly

No visible smoke; Common rail fuel system enables optimum combustion and low emissions; Reduced combustion noise through advanced electronic control; Closed crankcase ventilation system improves engine room cleanliness

C7.1 Tier 3 / IMO II Standard Equipment

COOLING SYSTEM

  • Gear driven jacket water pump
  • Corrosion resistant sea water aftercooler
  • Fuel cooler

EXHAUST SYSTEM

  • Watercooled turbocharger and exhaust manifold

FUEL SYSTEM

  • Common rail fuel system
  • Electric fuel priming pump

GENERAL

  • Vibration damper and guard
  • Self-tensioning multi-vee belt drive

LUBE SYSTEM

  • Closed crankcase ventilation system
  • Integral engine oil cooler

MOUNTING SYSTEM

  • Front and rear engine mounting brackets

STARTING SYSTEM

  • Starter motors - 12V or 24V

C7.1 Tier 3 / IMO II Optional Equipment

AIR INLET SYSTEM

  • Various 6" water cooled exhaust elbow configurations

COOLING SYSTEM

  • Engine mounted bilge pumps and auxiliary water pumps with electromagnetic clutch
  • Tube and bundle jacket water heat exchanger and gear-driven sea water pump (rubber impeller)
  • Jacket water heater
  • Cabin heater (calorifier) connections

FUEL SYSTEM

  • SOLAS double wall high pressure fuel lines kit

LUBE SYSTEM

  • Left-hand and right-hand oil dipsticks
  • Transmission gear oil cooler (engine mounted)

PROTECTION SYSTEM

  • Additional engine and transmission sensor packages for on or off vessel monitoring

STARTING SYSTEM

  • Engine mounted secondary alternator - 24V 100 amp or 12V 175 amp
  • Glow plugs

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