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Power Systems
Marine Power Systems
Commercial Propulsion Engines
C7.1 Tier 3 / IMO II Propulsion Engine

Commercial Propulsion Engines

Cat C7.1 Tier 3 / IMO II

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

C7.1 High Performance Propulsion Engine

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	7.01 l
Aspiration	Turbocharged-aftercooled
Governor	Electronic (A5E2 V2 ECM)
Flywheel Housing	SAE No. 03
Bore	105 mm
Stroke	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	760 kg
Height	876 mm
Length	1095 mm
Width	798 mm

C7.1 Marine Propulsion Engine- Commercial Applications

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Benefits & 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

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Power Systems
Marine Power Systems
Commercial Propulsion Engines
C7.1 Tier 3 / IMO II Propulsion Engine

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C7.1 High Performance Propulsion Engine

Cat C7.1 Tier 3 / IMO II

Commercial Propulsion Engines

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Cat C7.1 Tier 3 / IMO II Commercial Propulsion Engines