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Cat® C7.1 Commercial Propulsion

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Product Description

The Cat® C7.1 commercial propulsion engine delivers responsive, efficient power for commercial vessels operating in demanding conditions. With ratings from 280 to 425 bhp (209 to 317 bkW) at 2300 to 2700 rpm, its compact inline-six configuration supports a range of applications, including tugs, crew boats, push boats and fishing vessels.

Specifications
Us
Metric
Power Rating
Power Range
280 bhp - 425 bhp (209 bkW - 317 bkW)
Engine Specifications
Application
Workboat
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/Optional

Standard Equipment

General
Water-cooled turbocharger and exhaust manifold
Vibration damper and guard
Starter motors – 12V or 24V
Integral engine oil cooler
Closed crankcase ventilation system
Fuel cooler (optional)
Gear-driven seawater pump (rubber impeller)
Common rail fuel system
Self-tensioning multi-vee alternator drive belt
Electric fuel priming pump
Corrosion-resistant sea water aftercooler
Fin and tube-type jacket water heat exchanger
Front and rear engine mounting brackets

Optional Equipment

Fuel System
General
Cooling System
Exhaust System
Lube System
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