Marine Power Systems

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

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

Power Rating

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

Engine Specifications

Configuration In-line 6, 4-stroke-cycle diesel In-line 6, 4-stroke-cycle diesel Less
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 Less
Rated Engine Speed 2300 - 2700 rpm 2300 - 2700 rpm Less
Bore 4.13 in 105.0 mm Less
Stroke 5.31 in 135.0 mm Less
Displacement 428.0 in³ 7.01 l Less
Aspiration Turbocharged-aftercooled aspiration Turbocharged-aftercooled aspiration Less
Governor Electronic (A5E2 V2 ECM) Electronic (A5E2 V2 ECM) Less
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) Less
Oil Change Interval 500 hrs 500 hrs Less
Cooling Heat exchanger or keel cooled Heat exchanger or keel cooled Less
Flywheel Housing SAE No. 03 with SAE 11.5 in flywheel SAE No. 03 with SAE 11.5 in flywheel Less
Rotation Counterclockwise from flywheel end Counterclockwise from flywheel end Less

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