C9.3 Commercial Propulsion Engine

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The C9.3 ACERT propulsion engine has a B rating of 375 bhp (280 bkW) at 1800 rpm, a C rating of 416 bhp (310 bkW) at 2100 rpm, and a D rating of 476 bhp (355 bkW) at 2300 rpm. The C9.3 propulsion, auxiliary, and generator set engines have a common rail fuel system for optimal combustion and lower emissions. Cooling system options for the propulsion and auxiliary engines include heat exchanger with sea water aftercooling, and keel with combined circuit or separate circuit aftercooling. The genset packages are available with heat exchanger, keel, or radiator cooling. These products are EPA Tier 3 and IMO II certified. In addition the propulsionengine ratings are EU Stage IIIA certified and auxiliary and gen sets are also CCNR Stage II certified.

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Power Range	375-476 bhp (280 - 355 bkW)

Aspiration	Turbocharged - Aftercooled
Bore	4.5in
Configuration	In-line 6, 4-Stroke-Cycle Diesel
Cooling	Heat exchanger and separate or combined keel cooled options
Displacement	567.5in³
Emissions	IMO II, U.S. EPA Tier 3, China Stage II
Flywheel Housing	SAE No. 1 (113 teeth)
Governor	Electronic
Oil Change Interval	500 hours
Refill Capacity	Lube Oil System w/oil filter change: 24.5 L (6.5 gal)
Rotation from Flywheel End	Counterclockwise
Speed Range	1800 - 2300 rpm
Stroke	5.8in

Dry Weight - Approximate	2447lb
Height	43in
Length - Engine	57.2in
Width - Engine	38.5in

Standard Equipment:

Water-cooled turbocharger and exhaust manifold
Electronic control system
Thermostats and housing
Gear-driven Sea water pump (self-priming)
Common rail fuel system
Shell and tube jacket water heat exchanger
Corrosion-resistant Sea water aftercooler
Engine oil cooler
Vibration damper and guard
Primary fuel filters

Optional Equipment:

Alternators - 24V 70 or 105 amp, 12V 110 amp
Closed crankcase ventilation
Transmission gear oil cooler (engine mounted for HEX)
Additional engine and transmission sensor packages
Instrument panels
Electric starting motors - 12V or 24V
Air starting motor
Dual electric starting motors or combined electric/air
Electric fuel priming pump
Fuel cooler
PTO Drives - V-belt pulley stack, stub shaft
Duplex fuel and oil filters
Double wall fuel rail

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12:56 06 Aug 25

Hydraulic pump shop is unmatched. I made the mistake of going somewhere else before bringing my pump here. These guys were more than helpful and friendly. Went out of their way to help me find a solution for my problem even when it didn’t benefit them. This is how businesses should be run. I won’t go anywhere else.

Brian Hrudka

16:45 12 Feb 25

Too bad Poole Cat Field Service is better at invoicing than actually getting my machines moving.

A prompt and courteous technician arrived, and correctly diagnosed two problems with my mini Ex. Thank you. I corrected those problems, but machine still did not work.

He diagnosed a fuel problem as a clogged filter, rather than a bad fuel pump which I managed to diagnose. I also figured out, via help on the internet, that the fuel shut-off solenoid was bad.

Machine runs fine now. So my advice is to check the internet, before letting Poole charge you $870 for a two hour field visit. And you can find a perfectly fine aftermarket fuel pump for $20 rather than the $250 that Poole charges... and it arrives faster,

Jacey Price

21:04 05 Dec 24

Need to teach a tech how to drive a service truck. Around 2:48 on highway 40 east, the truck pictured (plate ending in 8236) flew across 3 lanes of traffic to meet the Cleveland rd exit. Almost hit a semi and caused me to swerve with my children in the car. Glad making the exit was more important than children’s lives.