Cummins QSL 9 405HP Marine Propulsion Diesel Engine
$38,088.00
- Description
Description
Buy Cummins QSL9 405HP Marine Propulsion Diesel Engine
The Cummins QSL9 405HP Marine Propulsion Diesel Engine is designed for demanding marine propulsion applications where reliability, power density, and fuel efficiency are critical. At Coastal Wave Marine, the Cummins QSL9 405HP marine engine is supplied as a heavy-duty marine inboard diesel engine for commercial vessels, patrol craft, fishing boats, workboats, and performance motor yachts requiring dependable propulsion.
Built on the proven Cummins QSL9 marine diesel platform, this 9-liter inline six-cylinder marine diesel engine delivers strong low-RPM torque and consistent horsepower output for vessels operating under continuous load conditions. The engine incorporates advanced fuel injection technology, electronic engine management, and robust marine cooling systems designed for demanding maritime environments. Buyers searching for a Cummins QSL9 405HP marine diesel engine for sale typically prioritize reliability, gearbox compatibility, fuel economy, and long service intervals.
The Cummins QSL9 405HP marine propulsion engine integrates efficiently with marine transmission systems, shaft-drive propulsion configurations, and commercial vessel propulsion layouts, making it suitable for both repower projects and new vessel installations. Its proven durability and consistent power delivery make the QSL9 series a preferred option among operators requiring high-performance marine inboard diesel propulsion engines.
Cummins QSL9 405HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSL9 Marine Diesel |
| Engine Type | Marine Inboard Diesel Engine |
| Configuration | Inline 6-Cylinder |
| Displacement | 8.9 – 9.0 Liters |
| Rated Power | 405 HP |
| Fuel System | High-Pressure Electronic Fuel Injection |
| Cooling System | Heat Exchanger Cooled Marine System |
| Aspiration | Turbocharged and Aftercooled |
| Engine Control | Electronic Engine Management |
| Propulsion Type | Marine Inboard Propulsion Engine |
| Installation | Shaft-Drive Marine Propulsion |
| Typical Applications | Commercial vessels, patrol boats, fishing boats, workboats, yachts |
Applications
The Cummins QSL9 405HP marine diesel engine is commonly installed in:
Commercial fishing vessels
Patrol and security boats
Crew transfer vessels
Fast displacement motor yachts
Offshore service vessels
Heavy-duty workboats
Request a Quote – Coastal Wave Marine
If you are looking to buy a Cummins QSL9 405HP marine propulsion diesel engine, Coastal Wave Marine provides professional supply, configuration verification, and global delivery support. Our team works with vessel owners, shipyards, and marine operators to ensure the correct marine inboard diesel engine configuration is selected for each application.
Contact Coastal Wave Marine today to request pricing, confirm availability, and receive a detailed quotation for the Cummins QSL9 405HP marine engine, including shipping options and documentation for domestic or international delivery.

