Power Rating
| Power Range | 375-476 bhp (280-355 bkW) 375-476 bhp (280-355 bkW) |
My Account
Sign In
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
Register Now
One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Welcome Back!
My Account Dashboard
Account Information
Site Settings
Security
Commercial Propulsion Engines C9.3 ACERT
Request A Price Find DealerKey Specs
- Power Range
- 375-476 bhp (280-355 bkW)
- 375-476 bhp (280-355 bkW)
- Speed Range
- 1800, 2100, 2300 rpm
- 1800, 2100, 2300 rpm
- Rated Engine Speed
- 1800, 2100, 2300 rpm
- 1800, 2100, 2300 rpm
Overview
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.
Features At A Glance
- 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
Product Specifications for C9.3 ACERT
Engine Specifications
| Speed Range | 1800, 2100, 2300 rpm 1800, 2100, 2300 rpm |
| Rated Engine Speed | 1800, 2100, 2300 rpm 1800, 2100, 2300 rpm |
| Emissions | IMO II, U.S. EPA Tier 3, China Stage II IMO II, U.S. EPA Tier 3, China Stage II |
| Configuration | In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel |
| Displacement | 567.5 in³ 9.3 l |
| Aspiration | Turbocharged-aftercooled Turbocharged-aftercooled |
| Governor | Electronic Electronic |
| Bore | 4.5 in 115 mm |
| Stroke | 5.8 in 149 mm |
| Refill Capacity | Lube Oil System w/oil filter change: 24.5 L (6.5 gal) Lube Oil System w/oil filter change: 24.5 L (6.5 gal) |
| Oil Change Interval | 500 hrs 500 hrs |
| Flywheel Housing | SAE No. 1 (113 teeth) SAE No. 1 (113 teeth) |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Cooling | Heat exchanger and separate or combined keel cooled options Heat exchanger and separate or combined keel cooled options |
Dimensions & Weights
| Length - Engine | 57.2 in 1452 mm |
| Engine Dry Weight - Approximate | 945-1122 kg (2083-2474 lbs) 945-1122 kg (2083-2474 lbs) |
| Width - Engine | 38.5 in 978 mm |
| Height | 43 in 1093 mm |
C9.3 ACERT Standard Equipment
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
C9.3 ACERT Optional Equipment
Optional Attachments
- 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
See how C9.3 ACERT compares against frequently compared products.
Marine Power Systems
C9.3 ACERT
Selected
- Power Range
- 375-476 bhp (280-355 bkW)
- 375-476 bhp (280-355 bkW)
- Speed Range
- 1800, 2100, 2300 rpm
- 1800, 2100, 2300 rpm
- Rated Engine Speed
- 1800, 2100, 2300 rpm
- 1800, 2100, 2300 rpm
Marine Power Systems
C7.1 Tier 3 / IMO II
- Power Range
- 280 bhp - 425 bhp (209 bkW - 317 bkW)
- 280 bhp - 425 bhp (209 bkW - 317 bkW)
- Speed Range
- 2300 - 2700 rpm
- 2300 - 2700 rpm
- Emissions
- U.S. EPA Tier 3, IMO II, RCD II, China II
- U.S. EPA Tier 3, IMO II, RCD II, China II
Marine Power Systems
C12
- Power Range
- 340-490 bhp (254-366 bkW)
- 340-490 bhp (254-366 bkW)
- Speed Range
- 1800-2300 rpm
- 1800-2300 rpm
- Emissions
- IMO I, IMO II
- IMO I, IMO II
Use the comparison tool to compare detailed specs of Cat and competitor models.
Compare All Modelsassignment Product Brochures and More Are Ready to Download!
Caterpillar product brochures and other informational documents are available for your growing business.