C7.1 High Performance Propulsion Engine

C7.1 Tier 3 / IMO II

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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)

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
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Easy to use

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

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

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

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

Full Specifications Standard Equipment Optional Equipment

Product Specifications for C7.1 Tier 3 / IMO II

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US
Metric

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

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

C7.1 Tier 3 / IMO II Standard Equipment

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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

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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

See how C7.1 Tier 3 / IMO II compares against frequently compared products.

US
Metric

Marine Power Systems C7.1 Tier 3 / IMO II

C7.1 Tier 3 / IMO II

Length: 43.1 in; 1095.0 mm
Height: 35.1 in; 891.0 mm
Minimum Width: 31.4 in; 798.0 mm

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Emissions: EPA Tier 3 Commercial, IMO II, EU IW; EPA Tier 3 Commercial, IMO II, EU IW

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Model Details

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