Cummins QSL 9 455HP Marine Diesel Engine
$40,988.00
- Description
Description
The Cummins QSL9 455HP Marine Diesel Engine is a high-performance inboard marine propulsion engine designed to deliver dependable power, durability, and fuel efficiency for demanding marine environments. Built on the proven Cummins QSL9 marine engine platform, this 9-liter inline six-cylinder turbocharged diesel engine provides strong torque and consistent propulsion performance for commercial vessels, workboats, and high-performance recreational boats.
Engineered for reliability, the Cummins QSL9 455HP marine propulsion engine combines advanced high-pressure common rail fuel injection technology with electronic engine management to optimize combustion efficiency and deliver precise fuel control. This system improves throttle response, reduces fuel consumption, and enhances operational efficiency during extended marine operations.
At Coastal Wave Marine, the Cummins QSL9 455HP Marine Diesel Engine is supplied as a brand-new genuine Cummins marine engine, delivered with standard manufacturer accessories and factory configuration options. These engines are designed for seamless installation in new vessel builds as well as marine repower projects, offering a reliable propulsion solution trusted by marine professionals worldwide.
The engine’s turbocharged and aftercooled air system maximizes air intake density, enabling the engine to generate strong horsepower output while maintaining efficient operating temperatures. Combined with Cummins’ robust engineering and durable internal components, the QSL9 platform is built to withstand the demanding conditions of continuous marine duty.
Another advantage of the Cummins QSL9 marine diesel engine series is its high power-to-weight ratio and compact engine footprint, allowing vessel builders and marine engineers to optimize engine room space while maintaining powerful propulsion performance. These characteristics make the 455HP configuration ideal for vessels requiring efficient and dependable power delivery.
Through Coastal Wave Marine’s global marine engine supply network, the Cummins QSL9 propulsion engine can be delivered worldwide with professional export packaging, logistics coordination, and documentation suitable for international shipping and marine installation.
Cummins QSL9 455HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSL9 Marine Diesel |
| Power Output | 455 HP |
| Engine Type | 4-Stroke Inline 6-Cylinder Turbocharged Diesel |
| Displacement | 8.9 Liters |
| Bore × Stroke | 114 mm × 145 mm |
| Aspiration | Turbocharged and Aftercooled |
| Fuel System | High-Pressure Common Rail Injection |
| Electronic Control | Cummins Electronic Control Module (ECM) |
| 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 455HP Marine Propulsion Engine
Powerful and Reliable Marine Performance
The 455 horsepower output provides dependable propulsion power for commercial vessels and high-performance recreational boats operating in coastal and offshore waters.
Advanced Fuel Injection Technology
The high-pressure common rail fuel system delivers precise fuel injection, improving combustion efficiency and overall engine performance.
Electronic Engine Control
Cummins’ ECM engine management system continuously monitors engine parameters to optimize fuel delivery and maintain consistent propulsion performance.
Built for Continuous Marine Duty
The QSL9 platform is engineered with durable internal components designed to withstand demanding marine conditions, extended operating hours, and vibration typical of marine propulsion systems.
Ideal for Repower Projects
The compact design and high power density of the Cummins QSL9 marine diesel engine make it an excellent option for replacing older propulsion engines in vessel repower installations.
Typical Vessel Applications
The Cummins QSL9 455HP Marine Diesel Engine is commonly installed in:
Commercial fishing vessels
Offshore service boats
Patrol and security vessels
Passenger transport vessels
Workboats and utility vessels
Sportfishing yachts
Global Marine Engine Supply
Coastal Wave Marine supplies new Cummins marine engines, propulsion systems, marine generators, and marine gearboxes to vessel owners, shipyards, and commercial operators worldwide. Engines are prepared for international delivery with appropriate export packaging and documentation.
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 or new build installations
If you are looking for a Cummins QSL9 455HP Marine Diesel Engine for sale, contact Coastal Wave Marine to request pricing, configuration options, and international delivery arrangements. Our team can assist with selecting the right Cummins marine propulsion engine for your vessel or fleet.

