Cummins QSM11 680HP Marine Diesel Engine
$58,988.00
- Description
Description
Cummins QSM11 680HP Marine Diesel Engine
The Cummins QSM11 680HP Marine Diesel Engine is a heavy-duty inboard marine propulsion engine engineered for vessels requiring exceptional torque, high reliability, and continuous-duty offshore performance. Built on the proven Cummins QSM11 marine engine platform, this 10.8-liter inline six-cylinder turbocharged diesel engine delivers powerful acceleration and dependable propulsion for offshore sportfishing yachts, commercial fishing vessels, patrol boats, passenger vessels, and high-performance cruising yachts.
The Cummins QSM11 series is widely recognized for its durability, high torque output, and advanced electronic fuel management. The engine family delivers power ratings ranging from approximately 295 HP up to more than 700 HP, making the 680HP configuration a powerful mid-to-high output option within the QSM11 propulsion range.
At Coastal Wave Marine, the Cummins QSM11 680HP marine diesel engine is supplied as a brand-new genuine Cummins marine propulsion engine, complete with standard manufacturer accessories and configuration options suitable for new vessel construction, commercial marine fleets, and marine repower installations worldwide.
Engine Architecture and Engineering
The Cummins QSM11 680HP marine propulsion engine is built around a four-stroke inline six-cylinder configuration with a displacement of 10.8 liters, delivering strong torque characteristics and excellent power delivery across the operating range.
The engine incorporates Cummins CELECT electronic fuel injection, a full-authority electronic system that precisely controls fuel delivery to each cylinder. This advanced fuel system optimizes combustion efficiency, improves throttle response, and enhances fuel economy during marine operations.
A turbocharged and seawater-aftercooled air system increases air density entering the combustion chamber, enabling the engine to produce 680 horsepower of reliable propulsion power while maintaining stable operating temperatures.
The engine is also equipped with Cummins Quantum electronic engine management, which continuously monitors parameters such as engine load, fuel pressure, speed, and temperature to optimize performance and provide advanced diagnostic capability.
With its high torque output, robust marine construction, and proven reliability, the Cummins QSM11 680HP inboard diesel engine is widely selected by vessel owners and shipyards searching for Cummins marine engines for sale, 680HP marine diesel engines, or high-performance propulsion engines for offshore vessels.
Cummins QSM11 680HP Marine Engine Specifications
| Specification | Details |
|---|---|
| Engine Model | Cummins QSM11 Marine Diesel |
| Rated Power | 680 HP |
| Engine Configuration | Inline 6-Cylinder, 4-Stroke Diesel |
| Displacement | 10.8 Liters (661 cu in) |
| Bore × Stroke | 125 mm × 147 mm |
| Aspiration | Turbocharged and Aftercooled |
| Fuel System | Cummins CELECT Electronic Injection |
| Electronic Control | Cummins Quantum ECM |
| Rated Speed | Up to ~2300 RPM |
| Cooling System | Heat Exchanger with Seawater Cooling |
| Approx. Dry Weight | ~1188 kg (≈2620 lb) |
| Overall Length | ~1495 mm |
| Overall Width | ~1254 mm |
| Overall Height | ~1143 mm |
| Application | Inboard Marine Propulsion |
| Engine Condition | New |
| Manufacturer | Cummins Marine |
The QSM11 platform uses a turbocharged inline-six architecture and heavy-duty marine construction, allowing the engine to deliver strong torque and long service life in demanding offshore conditions.
Technical Features and Advantages
High-Torque Marine Propulsion Performance
The Cummins QSM11 680HP diesel engine delivers strong acceleration and sustained propulsion power, making it suitable for high-speed vessels and heavy-load marine operations.
CELECT Electronic Fuel Injection
The Cummins CELECT fuel system precisely controls fuel delivery, improving fuel efficiency, combustion performance, and engine responsiveness.
Turbocharged Aftercooled Air System
The turbocharger and seawater aftercooler maximize air intake density, improving combustion efficiency and maintaining consistent horsepower output under heavy loads.
Intelligent Electronic Engine Management
The Cummins Quantum ECM monitors key engine parameters and provides real-time diagnostics to optimize engine operation and protect critical components.
Heavy-Duty Marine Engine Construction
The engine features marine-grade cast-iron components, corrosion-resistant materials, and high-capacity cooling systems, designed for continuous marine operation and long service life.
Typical Vessel Applications
The Cummins QSM11 680HP inboard marine diesel engine is commonly installed in:
Offshore sportfishing yachts
High-performance cruising vessels
Commercial fishing boats
Patrol and security vessels
Offshore service vessels
Passenger transport boats
Marine buyers searching for Cummins marine engines for sale, 680HP marine diesel engines, Cummins QSM11 propulsion engines, or marine repower diesel engines frequently select the QSM11 platform because of its proven durability and strong performance in demanding marine environments.
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 operators 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 vessel repower and new vessel construction
If you are looking to buy a Cummins QSM11 680HP Marine Diesel Engine, Coastal Wave Marine provides genuine Cummins propulsion engines with worldwide delivery and professional marine supply support. Contact our team today to request pricing, availability, and shipping arrangements for your vessel or commercial fleet.