Auxiliary Engines

Cat C9.3 Auxiliary Engine

C9.3 Marine Auxiliary Engine

Power Rating

Power Range

292 bhp - 436 bhp (218 bkW - 325 bkW)

Engine Specifications

Rated Engine Speed	1,500, 1,800 rpm
Aspiration	Turbocharged-aftercooled
Stroke	149 mm
Bore	115 mm
Displacement	9.3 l
Rotation from Flywheel End	Counterclockwise
Configuration	In-Line 6, 4-Stroke-Cycle Diesel
Emissions	IMO II, IMO III, U.S. EPA Tier 3, China Stage II
Cooling	Heat exchanger and separate or combined keel cooled options
Oil Change Interval	500 hrs
Governor	Electronic
Flywheel Housing	SAE No. 1 (113 teeth)
Refill Capacity	Lube Oil System w/oil filter change: 24.5 L (6.5 gal)

Dimensions & Weights

Width - Engine	978 mm
Height	1093 mm
Length - Engine	1452 mm
Engine Dry Weight - Approximate	2083-2474 lbs (945-1122 kg)

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Key features & benefits

Electronic control system provides industry-leading torque and throttle response at low speeds, while maintaining fuel efficiency at high speeds
Common rail fuel system enables optimum combustion and low emissions
RH and LH locations service options for fuel and oil filters, as well as dipstick location for easily accessible service
Compatible with Cat® displays
Available remote-mounted display panel with start, stop, and engine diagnostics
12V or 24V electrical system
Certified by all marine classification societies
Utilizes SCR technology enabling IMO III emissions compliance while lowering operational costs