- Description
Description
Cummins QSM11 715HP Marine Diesel Engine
The Cummins QSM11 715HP Marine Diesel Engine is a high-output inboard marine propulsion engine designed for vessels that demand maximum power, exceptional torque, and reliable continuous-duty operation. Built on the robust Cummins QSM11 marine engine platform, this 10.8-liter inline six-cylinder turbocharged diesel engine delivers outstanding propulsion performance for offshore sportfishing yachts, high-performance cruising vessels, commercial fishing boats, patrol vessels, and offshore service craft.
The Cummins QSM11 series is widely recognized across the marine industry for its heavy-duty design, advanced electronic fuel management, and high power-to-weight ratio. The engine family delivers power outputs ranging from approximately 300 HP to 715 HP, making the 715HP configuration the highest-performance rating available within the QSM11 propulsion range.
At Coastal Wave Marine, the Cummins QSM11 715HP 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 worldwide.
Engine Engineering and Performance
The Cummins QSM11 715HP marine propulsion engine features a four-stroke inline 6-cylinder configuration with 10.8-liter displacement, engineered to deliver strong torque output and smooth power delivery across the operating range.
A key feature of the engine is its High-Pressure Common Rail (HPCR) electronic fuel injection system, which precisely controls fuel delivery to each cylinder. This advanced fuel system improves combustion efficiency, throttle response, and fuel economy, while reducing exhaust smoke and emissions during marine operation.
The engine is also equipped with a turbocharged and aftercooled air intake system, increasing intake air density to maximize combustion efficiency and allow the engine to produce 715 horsepower of dependable marine propulsion power.
Integrated Cummins Quantum electronic engine management continuously monitors critical parameters such as engine load, fuel pressure, temperature, and engine speed. This intelligent system optimizes engine performance, enhances reliability, and provides advanced diagnostics for vessel operators.
With its exceptional torque output, heavy-duty marine construction, and high horsepower rating, the Cummins QSM11 715HP inboard marine engine is widely selected by shipyards and vessel owners searching for Cummins marine engines for sale, 715HP marine diesel engines, high-performance marine propulsion engines, or Cummins diesel boat engines for repower projects.
Cummins QSM11 715HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSM11 Marine Diesel |
| Rated Power | 715 HP (≈526 kW) |
| Rated Speed | Up to 2500 RPM |
| Engine Configuration | Inline 6-Cylinder, 4-Stroke Diesel |
| Displacement | 10.8 Liters |
| Bore × Stroke | 125 mm × 147 mm |
| Aspiration | Turbocharged and Aftercooled |
| Fuel System | High-Pressure Common Rail (HPCR) |
| Electronic Control | Cummins Quantum ECM |
| Maximum Torque | Up to ~2305 Nm |
| Cooling System | Heat Exchanger with Seawater Cooling |
| Approx. Dry Weight | ~1188 kg (≈2619 lb) |
| Engine Length | ~1495 mm |
| Engine Width | ~1254 mm |
| Engine Height | ~1143 mm |
| Emissions Compliance | EPA Tier 3, IMO Tier II, EU Stage IIIA |
| Application | Inboard Marine Propulsion |
| Engine Condition | New |
| Manufacturer | Cummins Marine |
The QSM11 platform is engineered with four valves per cylinder and heavy-duty internal components, enabling strong acceleration, high torque performance, and long service life in demanding marine environments.
Technical Features and Advantages
Maximum Output Marine Propulsion
The Cummins QSM11 715HP diesel engine delivers powerful acceleration and sustained propulsion power, making it ideal for high-speed offshore vessels and heavy marine applications.
High-Pressure Common Rail Fuel Injection
The HPCR fuel system ensures precise fuel atomization and optimized combustion, improving fuel efficiency, engine responsiveness, and reduced emissions.
Advanced Electronic Engine Management
The Cummins Quantum ECM monitors engine performance parameters and provides real-time diagnostics for improved reliability and easier maintenance.
Turbocharged Aftercooled Air System
The turbocharger and aftercooler maximize intake airflow density, enabling consistent horsepower output even under heavy marine load conditions.
Heavy-Duty Marine Construction
The engine incorporates marine-grade cast-iron components, corrosion-resistant materials, and heavy-duty cooling systems, designed for long service life and continuous marine duty.
Typical Vessel Applications
The Cummins QSM11 715HP marine diesel engine is commonly installed in:
Offshore sportfishing yachts
High-performance cruising boats
Commercial fishing vessels
Patrol and security vessels
Offshore service and supply boats
Passenger transport vessels
Buyers searching online for Cummins marine engines for sale, 715HP marine diesel engines, Cummins inboard propulsion engines, or Cummins QSM11 marine engines for vessel repower projects frequently choose this platform because of its proven durability, high torque output, and industry-leading reliability.
Global Supply from Coastal Wave Marine
Coastal Wave Marine supplies new Cummins marine propulsion engines, marine generators, marine gearboxes, and complete propulsion systems to shipyards, vessel owners, and commercial marine fleets worldwide.
Our marine supply services include:
Worldwide export shipping and logistics coordination
Professional export crating for sea or air freight
Marine transmission pairing options
Engine configuration consultation
Support for marine repower and new vessel construction
If you are looking to buy a Cummins QSM11 715HP 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 international shipping arrangements for your vessel or commercial fleet.