Cummins QSL 9 480HP Inboard Propulsion Diesel Engine
$40,088.00
- Description
Description
Cummins QSL9 480HP Inboard Propulsion Diesel Engine
The Cummins QSL9 480HP Inboard Propulsion Diesel Engine is a high-performance marine propulsion engine engineered to deliver dependable power, efficiency, and durability for demanding marine environments. Built on the proven Cummins QSL9 marine engine platform, this 9-liter inline six-cylinder turbocharged diesel engine provides exceptional torque and reliable propulsion for commercial vessels, patrol boats, sportfishing yachts, and heavy-duty workboats.
The Cummins QSL9 series is widely recognized in the marine industry for its robust engineering, advanced fuel system technology, and consistent performance under continuous operating conditions. The 480HP configuration delivers strong mid-range torque and efficient power output, making it ideal for vessels that require dependable propulsion while maintaining excellent fuel efficiency.
At Coastal Wave Marine, the Cummins QSL9 480HP marine diesel engine is supplied as a new genuine Cummins marine propulsion engine, delivered with standard manufacturer accessories and factory configuration options. These engines are prepared for installation in new vessel builds or marine repower projects and are supported by Cummins’ globally recognized engineering standards.
Equipped with an advanced high-pressure common rail fuel injection system, the engine provides precise fuel delivery for improved combustion efficiency and optimized engine performance. Combined with electronic engine control management, the QSL9 engine ensures smooth throttle response, improved fuel economy, and reliable operation across varying marine load conditions.
The turbocharged and aftercooled air system increases air density entering the combustion chamber, allowing the engine to generate higher power output while maintaining efficient operating temperatures. This design improves performance and ensures dependable operation in both commercial and recreational marine applications.
Due to its compact design and high power-to-weight ratio, the Cummins QSL9 480HP marine propulsion engine is also a popular option for vessel repowering projects, where modern fuel efficiency and increased reliability are required.
Through Coastal Wave Marine’s international marine equipment supply network, the Cummins QSL9 engine can be delivered worldwide with secure export packaging, logistics coordination, and documentation suitable for marine installation and international transport.
Cummins QSL9 480HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSL9 Marine Diesel |
| Power Output | 480 HP |
| Engine Type | 4-Stroke Inline 6-Cylinder Diesel |
| Displacement | 8.9 Liters |
| Bore × Stroke | 114 mm × 145 mm |
| Aspiration | Turbocharged and Aftercooled |
| Fuel System | High-Pressure Common Rail (HPCR) |
| Electronic Control | Cummins ECM Electronic Engine Control |
| Cooling System | Heat Exchanger or Keel Cooling Configuration |
| Typical Dry Weight | Approx. 907 kg (≈ 2000 lb) |
| Engine Rotation | Counterclockwise (viewed from flywheel) |
| Application | Inboard Marine Propulsion |
| Engine Condition | New |
| Manufacturer | Cummins Marine |
Key Features of the Cummins QSL9 480HP Marine Propulsion Engine
Reliable High-Power Marine Performance
The 480HP power output delivers strong propulsion performance for vessels operating in commercial, offshore, and recreational environments.
Advanced Electronic Engine Management
Cummins’ electronic control module (ECM) continuously monitors engine performance parameters, optimizing fuel injection and combustion efficiency.
Fuel Efficiency and Operational Economy
The high-pressure common rail fuel system ensures precise fuel delivery, reducing fuel consumption while maintaining reliable propulsion power.
Durable Marine Engineering
The QSL9 engine platform is engineered for continuous marine duty, using heavy-duty internal components designed to withstand vibration, corrosion, and extended operating hours.
Ideal for Repower Projects
The compact dimensions and efficient design make the Cummins QSL9 marine engine a preferred solution for replacing older marine propulsion engines in vessel upgrades.
Typical Vessel Applications
The Cummins QSL9 480HP Inboard Diesel Engine is commonly used in:
Commercial fishing vessels
Offshore service vessels
Patrol and security boats
Passenger transport vessels
Workboats and utility vessels
Sportfishing and recreational yachts
Global Marine Engine Supply
Coastal Wave Marine supplies new Cummins marine engines, propulsion systems, marine generators, and marine gearboxes to customers worldwide. Engines are prepared for international shipment with professional export packaging and documentation suitable for shipyards, vessel operators, and marine service centers.
Available supply services include:
Global shipping and export logistics
Marine transmission pairing options
Engine configuration consultation
Export crating for sea or air freight
Support for vessel repower and new build installations
If you are searching for a Cummins QSL9 480HP Inboard Propulsion Diesel Engine for sale, Coastal Wave Marine provides global access to genuine marine propulsion engines with international delivery support. Contact our team to request pricing, configuration options, and shipping arrangements for your vessel or fleet.

