Cummins QSC 8.3 575HP Marine Diesel Engine
$51,188.00
- Description
Description
Cummins QSC 8.3 575HP Marine Diesel Engine
The Cummins QSC 8.3 575HP Marine Diesel Engine is a high-performance inboard marine propulsion engine designed for vessels that require maximum power, rapid acceleration, and dependable continuous-duty operation. Built on the robust Cummins QSC 8.3 platform, this 8.3-liter inline six-cylinder turbocharged marine diesel engine delivers exceptional power density and fuel efficiency for sportfishing yachts, offshore cruising vessels, patrol boats, commercial fishing boats, and high-speed workboats.
The Cummins QSC 8.3 marine engine series is widely recognized for its advanced engineering, high horsepower output, and durability under demanding marine operating conditions. With a power range of approximately 493 to nearly 600 horsepower, the platform provides one of the highest power-to-weight ratios in its class for mid-size marine propulsion engines.
At Coastal Wave Marine, the Cummins QSC 8.3 575HP marine diesel engine is supplied as a brand-new genuine Cummins marine propulsion engine, delivered with standard manufacturer accessories and configuration options suitable for new vessel construction, commercial marine fleets, and marine repower installations.
Engine Architecture and Engineering
The Cummins QSC 8.3 propulsion engine features a 4-stroke inline six-cylinder design with a 24-valve cylinder head, engineered to improve airflow efficiency, combustion performance, and torque output. This architecture enhances acceleration while maintaining smooth engine operation across the RPM range.
A key component of the engine’s performance is the High-Pressure Common Rail (HPCR) fuel injection system, which precisely controls fuel delivery to each cylinder. This system improves fuel atomization, combustion efficiency, and throttle response, while also reducing fuel consumption and emissions during marine operations.
The engine also incorporates a turbocharged and aftercooled air intake system, increasing air density entering the combustion chamber to maximize horsepower output while maintaining optimal engine temperatures. Combined with the Cummins Quantum electronic control system, the engine continuously monitors parameters such as fuel pressure, engine load, temperature, and RPM to optimize performance and protect engine components.
These technologies allow the Cummins QSC 8.3 575HP marine propulsion engine to deliver strong mid-range torque and rapid throttle response, making it ideal for vessels that require reliable power during acceleration, cruising, and heavy load conditions.
Cummins QSC 8.3 575HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSC 8.3 Marine Diesel |
| Rated Power | 575 HP |
| Engine Configuration | Inline 6-Cylinder, 4-Stroke Diesel |
| Displacement | 8.3 Liters (505 cu in) |
| Bore × Stroke | 114 mm × 135 mm |
| Aspiration | Turbocharged and Aftercooled |
| Fuel System | High-Pressure Common Rail (HPCR) |
| Electronic Control | Cummins Quantum ECM |
| Peak Torque | Up to ~1627 Nm (≈1200 lb-ft) depending on rating |
| Cooling System | Seawater Heat Exchanger or Keel Cooling |
| Overall Length | ~1422 mm |
| Overall Width | ~977 mm |
| Overall Height | ~982 mm |
| Approx. Dry Weight | ~896 kg (≈1,975 lb) |
| Application | Inboard Marine Propulsion |
| Engine Condition | New |
| Manufacturer | Cummins Marine |
The QSC 8.3 engine architecture uses a turbocharged inline-six configuration with 8.3-liter displacement, delivering high torque and efficient propulsion for heavy marine loads.
Technical Advantages of the Cummins QSC 8.3 575HP
High Power Density
The Cummins QSC 8.3 575HP diesel engine delivers exceptional horsepower relative to engine size, enabling powerful propulsion performance while maintaining compact installation dimensions.
Advanced Electronic Engine Management
The Cummins Quantum ECM system monitors engine load, speed, temperature, and fuel delivery, providing real-time diagnostics and optimized engine operation.
Efficient High-Pressure Common Rail Fuel System
The HPCR fuel injection technology improves combustion efficiency, delivering better fuel economy, smoother engine operation, and reduced exhaust emissions.
Turbocharged Aftercooled Air System
The turbocharger and aftercooler maximize intake airflow and combustion efficiency, allowing the engine to maintain consistent power output under heavy marine loads.
Heavy-Duty Marine Construction
The engine features marine-grade cast-iron construction, gallery-cooled pistons, corrosion-resistant components, and service-friendly maintenance points, ensuring durability in demanding offshore environments.
Typical Vessel Applications
The Cummins QSC 8.3 575HP inboard marine diesel engine is commonly installed in:
Offshore sportfishing yachts
High-performance cruising boats
Commercial fishing vessels
Patrol and security vessels
Offshore service and utility boats
Passenger transport vessels
Buyers searching for Cummins marine engines for sale, 575HP marine diesel engines, Cummins inboard propulsion engines, or Cummins boat engines for repower projects frequently choose the QSC series because of its proven reliability and strong performance across a wide range of marine applications.
Global Supply from Coastal Wave Marine
Coastal Wave Marine supplies new Cummins marine propulsion engines, marine generators, marine gearboxes, and complete marine propulsion systems to shipyards, vessel owners, and commercial marine fleets worldwide.
Our services include:
Worldwide export shipping and logistics coordination
Professional export crating for sea or air freight
Marine transmission pairing options
Engine configuration and repower consultation
Support for shipyards and vessel builders globally
If you are looking to buy a Cummins QSC 8.3 575HP Marine Diesel Engine, Coastal Wave Marine provides genuine Cummins propulsion engines with worldwide delivery and professional marine supply support. Contact our team to request pricing, configuration options, and shipping arrangements for your vessel or marine fleet.