Cat and MaK marine propulsion engines, generator sets, controls, parts and repower programs.
Caterpillar Marine Equipment Enhanced
C9.3 Marine Auxiliary Engine
Inline 6-cylinder 9.3 L turbocharged-aftercooled marine auxiliary diesel, 218-325 bkW at 1500/1800 rpm, common rail, IMO II, IMO III with SCR, U.S. EPA Tier 3 and China Stage II; certified by all marine classification societies.
Description
The Cat C9.3 Marine Auxiliary Engine is an inline 6-cylinder, 4-stroke diesel for marine generator and auxiliary drive applications. Electronic control gives strong low-speed torque and throttle response while maintaining fuel efficiency, and a common rail fuel system supports optimum combustion and low emissions.
Key features
- Electronic control system and common rail fuel system
- Right- or left-hand service locations for fuel and oil filters and dipstick
- Compatible with Cat displays; optional remote display panel with start, stop and diagnostics
- 12 V or 24 V electrical system
- Certified by all marine classification societies
- SCR technology for IMO III compliance
Technical data
- Power range: 218-325 bkW
- Frequency / speed: 50/60 Hz, 1500/1800 rpm
- Displacement: 9.3 L (567.5 in³); bore 115 mm, stroke 149 mm
- Emissions: IMO II, IMO III, U.S. EPA Tier 3, China Stage II
- Cooling: heat exchanger, separate or combined keel cooled
- Flywheel housing: SAE No. 1 (113 teeth)
- Lube oil refill with filter: 24.5 L (6.5 gal); oil change interval 500 h
- Dimensions: 1,452 x 978 x 1,093 mm (L x W x H)
Optional equipment
Electric fuel priming pump, fuel cooler, transmission oil cooler, sensor packages, alternators (24 V 70 or 105 A, 12 V 110 A), 12 V or 24 V starters, air starter or dual electric/air starting, instrument panels, PTO drives (V-belt pulley stack, stub shaft), double-wall fuel rail, duplex fuel and oil filters, closed crankcase ventilation.
Specifications
| Emissions | IMO II, IMO III, U.S. EPA Tier 3, China Stage II IMO II, IMO III, U.S. EPA Tier 3, China Stage II |
|---|---|
| Rated Engine Speed | 1500 / 1800 rpm 1500 / 1800 rpm |
| Bore | 4.5 in 115 mm |
| Stroke | 5.8 in 149 mm |
| Aspiration | Turbocharged - Aftercooled Turbocharged - Aftercooled |
| Displacement | 567.5 in³ 9.3 l |
| Cooling | Heat exchanger and separate or combined keel cooled options Heat exchanger and separate or combined keel cooled options |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Configuration | In-Line 6, 4-Stroke-Cycle Diesel In-Line 6, 4-Stroke-Cycle Diesel |
| Oil Change Interval | 500 hours 500 hours |
| Governor | Electronic Electronic |
| Flywheel Housing | SAE No. 1 (113 teeth) SAE No. 1 (113 teeth) |
| 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) |
| Width - Engine | 38.5 in 978 mm |
| Height | 43 in 1093 mm |
| Length - Engine | 57.2 in 1452 mm |
| Engine Dry Weight - Approximate | 2083 - 2474 2083 - 2474 |
| Power Range | 218 bkW - 325 bkW |
| Frequency | 50 / 60 |
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