Cummins QSB6.7 480HP Marine Engine – Product Overview
The Cummins QSB6.7 480HP Marine Diesel Engine is built for vessel owners, operators, and marine installers who need strong inboard diesel performance from a trusted Cummins platform. With 480 HP, this engine sits in a powerful range for boats that require confident acceleration, reliable cruising ability, and dependable power under load.
The QSB6.7 family is commonly selected for marine applications where operators want a strong balance of power density, diesel efficiency, serviceability, and installation practicality. Compared with smaller 4-cylinder platforms, the Cummins QSB6.7 marine engine offers higher output and stronger torque potential while remaining more compact than many larger heavy-duty engines.
This makes it suitable for sportfishing boats, motor yachts, commercial vessels, patrol craft, utility boats, fishing vessels, workboats, and compatible repower projects.
For customers comparing 480HP marine diesel engines, Cummins QSB engines, marine inboard propulsion engines, and diesel repower options, the Cummins QSB6.7 480HP is a strong and practical choice.
Built for High-Output Inboard Marine Propulsion
The Cummins QSB6.7 480HP Marine Diesel Engine is designed for marine inboard propulsion, making it suitable for vessels that require dependable drivetrain integration and long-term serviceability.
Inboard marine diesel engines are widely used in recreational and commercial applications because they provide strong shaft-drive compatibility, reliable load-handling ability, and practical access for maintenance.
With 480 HP, this engine is suitable for vessels that need more than light-duty propulsion. It can support boats carrying fuel, passengers, fishing gear, safety equipment, commercial tools, cargo, or cruising equipment.
For buyers searching for a Cummins QSB6.7 inboard marine diesel engine, this model offers a powerful and respected propulsion platform.
480HP Cummins Marine Diesel Power
The Cummins QSB6.7 480HP Marine Diesel Engine delivers strong 480HP diesel performance for compatible vessel applications.
A 480HP marine diesel engine is often selected for boats that need reliable acceleration, steady cruising speed, and strong operation under changing sea, wind, and load conditions. This horsepower level is valuable for vessels that require both recreational comfort and professional-grade reliability.
For sportfishing boats, the 480HP output supports offshore running and confident power delivery. For patrol vessels and workboats, it provides dependable response during demanding use. For motor yachts, it offers strong cruising performance with reliable diesel operation.
For customers searching for a Cummins 480HP marine engine, the QSB6.7 offers serious output in a practical marine diesel package.
Proven Cummins QSB6.7 Platform
The Cummins QSB6.7 marine diesel platform is known for combining strong output with a compact and serviceable engine layout.
The QSB6.7 class is commonly associated with strong marine torque, efficient diesel operation, modern control capability, and reliable propulsion performance. It is suitable for customers who want more power than smaller 4.5L engines while avoiding the size and weight of larger commercial diesel platforms.
This makes the Cummins QSB6.7 480HP a smart option for repower buyers, vessel builders, marine technicians, and operators who need dependable power in a manageable installation footprint.
For customers searching for a Cummins QSB6.7 marine diesel engine for sale, this 480HP model provides a strong high-output choice.
Strong Torque for Demanding Marine Loads
The Cummins QSB6.7 480HP Marine Diesel Engine is designed to support strong torque for demanding marine propulsion.
Torque is essential in marine use because boats must push through water resistance, handle load changes, carry weight, accelerate onto plane, maneuver in tight spaces, and maintain cruising performance in changing conditions.
The QSB6.7 platform is well suited for vessels that need practical pulling power and reliable response under load. This makes it useful for sportfishing boats, patrol craft, workboats, commercial vessels, and motor yachts where consistent diesel power matters.
For customers searching for a high-torque Cummins marine diesel engine, the QSB6.7 480HP is a strong option.
Practical Choice for Sportfishing Boats
The Cummins QSB6.7 480HP Marine Diesel Engine is a strong candidate for sportfishing vessels that require dependable diesel propulsion.
Sportfishing boats often carry fuel, ice, tackle, electronics, safety gear, crew, and offshore equipment. A reliable inboard diesel engine helps support confident cruising, acceleration, and operation in changing offshore conditions.
The 480HP output gives compatible sportfishing vessels strong running capability while the Cummins platform supports long-term confidence and serviceability.
For buyers searching for a Cummins diesel engine for sportfishing boats, the QSB6.7 480HP is a highly relevant marine propulsion option.
Practical Choice for Motor Yachts
The Cummins QSB6.7 480HP Marine Diesel Engine is also suitable for compatible motor yachts requiring strong inboard diesel performance.
Motor yachts need smooth cruising power, dependable operation, efficient performance, and good service access. The QSB6.7 platform provides a practical balance between output, size, and serviceability for many yacht installations.
With 480 HP, this model can support confident cruising and reliable propulsion for vessels that need more performance than lower-horsepower engines.
For customers searching for a Cummins marine diesel engine for motor yachts, the QSB6.7 480HP offers a strong and trusted choice.
Practical Choice for Commercial Vessels
The Cummins QSB6.7 480HP Marine Diesel Engine can also suit commercial vessels that need dependable marine propulsion in a practical engine package.
Commercial craft often operate for long hours and may carry crew, tools, cargo, safety equipment, or specialized working gear. They need engines that deliver steady output, strong torque, and serviceable diesel reliability.
The QSB6.7 platform is a useful fit for commercial operators who want dependable Cummins power without moving into a much larger heavy-duty engine class.
For customers searching for a Cummins commercial marine diesel engine, this 480HP QSB6.7 model is a capable option.
Practical Choice for Patrol Vessels
The Cummins QSB6.7 480HP Marine Diesel Engine is suitable for patrol vessels requiring reliable response, strong acceleration, and dependable marine operation.
Patrol vessels may operate at varied speeds and often carry specialized equipment. They need engines that respond confidently while supporting steady running performance.
The 480HP rating gives compatible patrol craft the power required for serious operation, while the Cummins QSB6.7 platform offers trusted diesel dependability.
For buyers searching for a 480HP patrol boat diesel engine, the Cummins QSB6.7 is a strong candidate.
Practical Choice for Workboats
The Cummins QSB6.7 480HP Marine Diesel Engine is also a practical option for workboats that require strong output and reliable serviceability.
Workboats often face demanding conditions and may operate with heavy tools, equipment, crew, or commercial loads. They need diesel engines that provide dependable torque, steady propulsion, and practical maintenance access.
The QSB6.7 platform offers a useful balance of power and manageable installation size for many workboat applications.
For customers searching for a Cummins workboat marine diesel engine, this QSB6.7 480HP model provides dependable propulsion capability.
Strong Candidate for Marine Repower Projects
The Cummins QSB6.7 480HP Marine Diesel Engine is a strong option for compatible repower projects.
Repowering allows boat owners and commercial operators to replace older engines with a newer platform that may offer better control, improved performance, stronger serviceability, and more dependable operation. The QSB6.7’s 480HP output makes it attractive for vessels that need a meaningful power upgrade while keeping engine size practical.
Repower buyers should confirm engine room dimensions, mount layout, gearbox compatibility, shaft alignment, propeller matching, cooling system requirements, exhaust routing, electrical integration, controls, and duty rating before installation.
For customers searching for a Cummins QSB6.7 repower engine, this 480HP model offers a powerful and trusted solution.
Installation and Fitment Considerations
Before purchasing the Cummins QSB6.7 480HP Marine Diesel Engine, buyers should confirm the final engine configuration and installation requirements.
Important details may include engine mounts, marine gearbox compatibility, shaft-drive setup, cooling system type, exhaust routing, fuel system layout, electrical control integration, control head compatibility, service access, engine room ventilation, and propeller matching.
Because Cummins marine engines can vary by configuration, buyers should verify the exact supplied specification before installation, especially if the engine is being used in a repower project.
Professional installation and proper commissioning help support reliable performance and long-term engine life.
Why the Cummins QSB6.7 480HP Is a Smart Choice
The Cummins QSB6.7 480HP Marine Diesel Engine stands out because it offers 480 HP in a practical Cummins marine diesel platform suitable for a wide range of vessel applications.
Many buyers in this category need strong diesel power, dependable torque, compact installation value, serviceability, and trusted brand reliability. The QSB6.7 platform is designed around those needs.
It is a strong option for sportfishing boats, motor yachts, commercial vessels, patrol craft, workboats, fishing vessels, utility craft, and compatible repower projects.
For customers searching for a Cummins QSB6.7 480HP Marine Diesel Engine for sale, this model delivers trusted Cummins power for demanding marine propulsion.
Who Should Choose This Marine Diesel Engine
The Cummins QSB6.7 480HP Marine Diesel Engine is best for boat owners, commercial operators, marine installers, and repower buyers who need a powerful 480HP marine diesel engine with dependable torque and practical inboard propulsion capability.
It is suitable for sportfishing boats, motor yachts, commercial craft, patrol vessels, workboats, fishing boats, utility vessels, and compatible repower projects.
This engine is especially useful for buyers who want a Cummins QSB6.7 marine engine with strong horsepower, trusted Cummins Marine engineering, inboard propulsion suitability, and practical installation value.
Buyers who require a complete engine-and-gearbox package, exact emissions certification, specific cooling configuration, engine control package, rotation detail, or duty rating should confirm the final Cummins Marine specification before purchase.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Cummins QSB6.7 480HP Marine Diesel Engine |
| Brand / Manufacturer | Cummins Marine |
| Engine Model | Cummins QSB6.7 |
| Product Type | Marine diesel engine |
| Power Output | 480 HP |
| Engine Platform | Cummins QSB6.7 marine diesel platform |
| Application | Marine inboard propulsion |
| Typical Vessel Types | Sportfishing boats, motor yachts, commercial craft, patrol vessels, workboats, fishing vessels |
| Recommended Use | Recreational, commercial, patrol, fishing, workboat, yacht, and repower applications |
| Installation Type | Confirm final configuration before purchase |
| Cooling System | Confirm final configuration before purchase |
| Fuel System | Confirm final configuration before purchase |
| Electronic Control | Confirm final configuration before purchase |
| Engine Condition | Confirm final listing details before purchase |
| Main Benefits | 480 HP output, trusted Cummins platform, strong diesel torque, inboard propulsion suitability, repower value |
Key Product Details and Specifications
The Cummins QSB6.7 480HP Marine Diesel Engine is built on the Cummins QSB6.7 marine diesel platform.
It delivers 480 HP for compatible marine propulsion applications.
It is suitable for sportfishing boats, motor yachts, patrol vessels, workboats, commercial vessels, fishing boats, utility craft, and repower projects.
The engine is designed for buyers who need dependable Cummins Marine diesel power in a practical inboard propulsion package.
This model is a strong choice for customers comparing Cummins QSB marine engines, 480HP marine diesel engines, and marine repower diesel engines.
Exact final specifications, including cooling system, control package, emissions rating, dry weight, rotation, gearbox compatibility, and installation accessories, should be confirmed from the supplied engine listing or Cummins Marine documentation before purchase.
Buy With Confidence
When buying the Cummins QSB6.7 480HP Marine Diesel Engine, customers should confirm vessel type, duty rating, engine room dimensions, mount layout, gearbox compatibility, shaft alignment, cooling configuration, exhaust routing, fuel system requirements, electronic control integration, electrical setup, controls, emissions requirements, and service access.
This model is a strong choice for buyers who want a Cummins QSB6.7 marine diesel engine with 480 HP, strong torque, practical installation value, and trusted Cummins Marine performance.
Customers can compare this product with related Cummins QSB engines, Cummins QSC and QSL marine engines, inboard marine gearboxes, fuel filtration systems, cooling system components, exhaust parts, controls, mounts, propeller matching services, and repower accessories.
Professional installation is recommended. Correct engine alignment, gearbox matching, cooling setup, fuel delivery, exhaust routing, control integration, mount installation, propeller matching, and final commissioning help support reliable performance and long-term engine life.
Frequently Asked Questions
What is the Cummins QSB6.7 480HP Marine Diesel Engine used for?
The Cummins QSB6.7 480HP Marine Diesel Engine is used for marine propulsion in sportfishing boats, motor yachts, commercial vessels, patrol craft, workboats, fishing boats, utility boats, and compatible repower projects.
How much power does the Cummins QSB6.7 480HP engine produce?
This model delivers 480 HP.
Is the Cummins QSB6.7 480HP suitable for repower projects?
Yes, the Cummins QSB6.7 480HP can be a strong option for compatible marine repower projects, provided the vessel’s engine room, mounts, gearbox, shaft, cooling system, exhaust routing, controls, and duty rating are properly matched.
What vessel types can use the Cummins QSB6.7 480HP?
Typical applications include sportfishing boats, motor yachts, patrol vessels, workboats, fishing vessels, commercial craft, utility boats, and selected passenger or service vessels.
Is this a marine inboard diesel engine?
The Cummins QSB6.7 480HP Marine Diesel Engine is commonly suited for marine inboard propulsion, but buyers should confirm the final supplied configuration before purchase.
What should buyers confirm before installation?
Buyers should confirm gearbox compatibility, cooling configuration, shaft alignment, propeller matching, exhaust layout, electrical integration, control package, engine mounts, duty rating, emissions documentation, and service access.
Is the Cummins QSB6.7 480HP good for sportfishing boats?
Yes, this engine can suit compatible sportfishing boats that need strong diesel power, dependable torque, and reliable offshore propulsion.
Is the Cummins QSB6.7 480HP good for commercial vessels?
Yes, it can be suitable for compatible commercial vessels, workboats, fishing boats, and patrol craft when the final engine configuration matches the vessel’s duty requirements.
