New CAT Equipment

C9 ACERT High Performance Marine Propulsion Engine

Cat® C9 ACERT Diesel Marine Propulsion Engine, with ratings of 510-575 mhp (503-567 bhp) at 2500 rpm, meets IMO II emission standards.

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Product Specs


Power Range 503-567 bhp (375-423 bkW)


Speed Range 2500 rpm
Emissions IMO II
Aspiration TA
Bore 4.41 in
Stroke 5.87 in
Displacement 538 in³
Rotation from Flywheel End Counterclockwise
Configuration In-line 6, 4-Stroke-Cycle Diesel

Dimensions & Weights

Length 47.2 in
Width - Engine 38.3 in
Approximate Engine Dry Weight 2086 lb
Height 38.7 in