Riggs Cat

C7.1 High Performance Propulsion Engine

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Specification Summary

Power Range
298 bkW - 373 bkW (400 bhp - 500 bhp)
Engine Dry Weight - Approximate
1653 lb
Aspiration
Turbocharged, aftercooled
Bore
4.13 in
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Ratings

Power Range
298 bkW - 373 bkW (400 bhp - 500 bhp)

Engine Specifications

Aspiration
Turbocharged, aftercooled
Bore
4.13 in
Configuration
In-line 6, 4-Stroke-Cycle Diesel
Displacement
427.16 in³
Emissions
EPA Tier 3 Recreational, IMO II, RCD 2016
Rotation from Flywheel End
Counterclockwise
Speed Range
2900 rpm
Stroke
5.31 in

Dimensions & Weights

Engine Dry Weight - Approximate
1653 lb
Height
34.5 in
Length - Engine
54.9 in
Width - Engine
31.4 in
Power Range
298 bkW - 373 bkW (400 bhp - 500 bhp)
Aspiration
Turbocharged, aftercooled
Bore
4.13 in
Configuration
In-line 6, 4-Stroke-Cycle Diesel
Displacement
427.16 in³
Emissions
EPA Tier 3 Recreational, IMO II, RCD 2016
Rotation from Flywheel End
Counterclockwise
Speed Range
2900 rpm
Stroke
5.31 in
Engine Dry Weight - Approximate
1653 lb
Height
34.5 in
Length - Engine
54.9 in
Width - Engine
31.4 in

The C7.1 marine propulsion engineis ideal for recreational boating applications, specifically smaller vessels and motoryachts ranging from 25 -60 feet in size. The engine features a common rail fuel system enabling optimum combustion and low emissions. The engines provide noticeably quiet operation due to reduced combustion noise through advanced electronic control. Additionally, no visible smoke is emitted from the C7.1 engines during operation.