Twin Disc MG5061 Marine Transmission Parts Catalog

Introduction: Unmatched Reliability for Marine Applications

The Twin Disc MG5061 marine transmission is renowned for its durability, efficiency, and adaptability across various marine applications. Whether you're operating a fishing vessel, workboat, offshore supply ship, or recreational craft, the MG5061 delivers consistent performance and reliability.

At Diesel Pro Power, we offer a complete range of MG5061 parts, including rebuilt transmissions, overhaul kits, clutch plates, seals, and more. Our commitment to quality ensures that your vessel remains operational with minimal downtime.

Rebuilt Twin Disc MG5061 Marine Transmissions for Sale

Our rebuilt MG5061 transmissions are meticulously reconditioned to meet or exceed OEM specifications. Each unit undergoes a rigorous process, including disassembly, inspection, replacement of worn components, reassembly, and testing to ensure optimal performance.

Features of our rebuilt MG5061 transmissions:

• Mechanical selector valve assembly (control valve): Ensures precise gear engagement and smooth operation.

• Pilot housing flange: Facilitates secure mounting to the engine.

• Oil pump: Maintains proper lubrication, reducing wear and extending transmission life.

• Oil level gauge: Allows for easy monitoring of fluid levels.

• Output flange: Provides a reliable connection to the propeller shaft.

Note: Drive ring is sold separately.

Available Gear Ratios:

Selecting the appropriate gear ratio is crucial for optimizing your vessel's performance. We offer the following Twin Disc MG5061 marine transmissions for sale, each tailored to specific operational needs:

• 1.13:1 Ratio: Ideal for high-speed vessels requiring minimal reduction, such as patrol boats and fast ferries.

• 1.28:1 Ratio: Suitable for vessels needing a slight reduction for efficient cruising.

• 1.54:1 Ratio: Balances speed and torque, making it versatile for various marine applications.

• 1.75:1 Ratio: Offers enhanced torque for vessels operating under moderate loads.

• 2.00:1 Ratio: Provides a balance between speed and pulling power, suitable for fishing boats and workboats.

• 2.43:1 Ratio: Delivers increased torque for heavier vessels like trawlers and cargo ships.

• 3.00:1 Ratio: Maximizes torque for demanding applications, including tugboats and large commercial vessels.

Each rebuilt transmission is available for sale and ready to install, ensuring minimal downtime for your operations.

Essential MG5061 Parts for Maintenance and Overhaul

Regular maintenance is key to the longevity and performance of your MG5061 transmission. We provide a comprehensive selection of parts to support your maintenance and overhaul needs.

Overhaul Plate Kit – For Twin Disc MG5061 Transmission

Our overhaul plate kit includes all necessary brass friction plates and steel plates required for a complete clutch rebuild. These components are engineered for durability and precision, ensuring smooth clutch engagement and extended service life.

Gasket and Seal Kit – For Twin Disc MG5061 Transmission

This kit contains main housing gaskets, O-rings, seal rings, and auxiliary gaskets, providing a complete solution for sealing your transmission. High-quality materials ensure leak-free operation and maintain system pressure during maintenance or overhauls.

Clutch Plates – For Twin Disc MG5061 Transmission

We offer individual brass and steel clutch plates for targeted repairs. These plates are manufactured to exact specifications, ensuring reliable performance and compatibility with your MG5061 transmission.

Individual Seals – For Twin Disc MG5061 Transmission

Our selection of input and output shaft seals are designed to prevent fluid leaks and maintain internal pressure. These seals are constructed from high-quality materials to withstand the demanding marine environment.

Oil Strainer – For Twin Disc MG5061 Transmission

The oil strainer plays a crucial role in maintaining clean transmission fluid by filtering out contaminants. Regular replacement ensures optimal lubrication and protects internal components from wear.

Additional MG5061 Components and Accessories

Beyond the core components, we offer a range of additional parts and accessories to support your MG5061 transmission:

• Oil Coolers: Maintain optimal operating temperatures and prevent overheating.

• Pressure Gauges: Monitor system pressure to ensure proper function.

• Control Cables: Facilitate smooth gear shifting and control.

• Rubber Couplings: Absorb vibrations and reduce stress on the drivetrain.

• Mounting Hardware: Securely install and maintain your transmission components.

Each part is crafted to meet the highest standards, ensuring reliability and performance in marine environments.

Maintenance Tips for MG5061 Transmission

Proper maintenance is essential for the longevity and efficiency of your MG5061 transmission. Here are some key tips:

• Regular Inspections: Conduct routine checks for signs of wear, leaks, or unusual noises.

• Fluid Checks: Monitor transmission fluid levels and quality, replacing as necessary.

• Seal Replacement: Replace seals during overhauls or if leaks are detected.

• Clutch Adjustment: Ensure clutch components are properly adjusted to prevent slippage.

• Use Quality Parts: Always use OEM or equivalent parts to maintain performance standards.

Adhering to a regular maintenance schedule will help prevent unexpected failures and extend the life of your transmission.

Frequently Asked Questions (FAQs) about the Twin Disc MG5061

1. What types of vessels commonly use the MG5061 transmission?

The MG5061 is versatile and commonly used in fishing boats, workboats, offshore supply vessels, and recreational crafts due to its reliability and performance.

2. How do I choose the correct gear ratio for my vessel?

Selecting the right gear ratio depends on your vessel's operational requirements. Higher ratios provide more torque for heavy loads, while lower ratios offer higher speeds. Consult with a marine transmission specialist to determine the best fit.

3. What is included in the overhaul plate kit?

The overhaul plate kit includes all necessary brass friction plates and steel plates required for a complete clutch rebuild.

4. How often should I replace the oil strainer?

It's recommended to inspect the oil strainer during each maintenance cycle and replace it if signs of clogging or damage are present.

5. Can I purchase individual clutch plates instead of a full kit?

Yes, individual brass and steel clutch plates are available for targeted repairs, allowing you to replace only the components that are worn or damaged.

6. What are the signs that my transmission seals need replacement?

Signs include fluid leaks, unusual noises, or decreased performance. Regular inspections can help identify seal issues early.

7. Do you offer technical support for installation and maintenance?

Absolutely. Our team of experts is available to provide guidance on installation, maintenance, and troubleshooting.

8. Are your rebuilt transmissions tested before sale?

Yes, each rebuilt transmission undergoes rigorous testing to ensure it meets or exceeds OEM performance standards.

9. What warranty do you offer on rebuilt transmissions and parts?

We offer a comprehensive warranty on our rebuilt transmissions and parts. Please contact us for specific warranty details.

10. How quickly can I receive my order?

We offer fast worldwide shipping, with most orders processed within 24 hours to minimize downtime for your operations.

Why Choose Diesel Pro Power for MG5061 Parts?

• Extensive Inventory: We stock a wide range of MG5061 parts, ensuring availability when you need them.

• Quality Assurance: Our parts meet or exceed OEM standards, providing reliability and performance.

• Expert Support: Our knowledgeable team is ready to assist with part selection and technical guidance.

• Fast Shipping: We offer prompt worldwide shipping to keep your operations running smoothly.

• Competitive Pricing: Our pricing is designed to provide value without compromising on quality.

Conclusion

Maintaining the performance and reliability of your Twin Disc MG5061 marine transmission is crucial for your vessel's operation. At Diesel Pro Power, we are committed to providing high-quality parts, expert support, and fast shipping to meet your maintenance and overhaul needs.

Explore our comprehensive selection of MG5061 parts today and experience the Diesel Pro Power difference.

Marine Transmission Specifications & Applications of the Twin Disc MG5061

Overview of the Twin Disc MG5061 Marine Transmission

The Twin Disc MG5061 is a versatile marine transmission designed for light to medium commercial duty and high-performance recreational use. Combining a durable hydraulic clutch system with smooth gear engagement and compact construction, the MG5061 delivers consistent performance for workboats, patrol vessels, pilot boats, and fishing vessels operating in coastal and inland waters.

This transmission is available in both straight and down-angle output configurations and supports both left- and right-hand engine rotation. Its compact footprint and compatibility with a wide range of diesel engines in the 300–450 horsepower range make it an excellent choice for repowers, new builds, and marine operators looking for reliable, easily serviceable propulsion systems.

Key Specifications of the Twin Disc MG5061

• Type: Marine transmission with oil-cooled hydraulic clutch

• Horsepower Rating (Approximate):

• Continuous Duty: Up to 350 HP @ 1800 RPM

• Intermittent Duty: Up to 450 HP @ 2300 RPM

• Maximum Input Speed: 2500 RPM

• Reduction Ratios Available:

• 1.51:1

• 1.93:1

• 2.48:1

• 2.96:1

• 3.52:1

• Input Housing: SAE No. 2 or SAE No. 3

• Flywheel Compatibility: 11.5", 14"

• Clutch Type: Hydraulically actuated, oil-cooled multi-disc clutch

• Cooling System: Standard oil-to-water heat exchanger; oil-to-air optional

• Lubrication: Internal oil pump with full pressure-fed lubrication system

• Oil Capacity: Approximately 6–8 quarts depending on configuration

• Dry Weight: Approximately 350–425 lbs

• Mounting Options: Available in straight or down-angle output

• Rotation Compatibility: Bi-directional input (clockwise or counterclockwise engine rotation)

• Optional Features:

• Hydraulic or mechanical PTO

• Trolling valve for low-speed operation

• Flexible or rigid mounting options

Common Marine Applications for the MG5061

The MG5061 is well-suited for small to mid-size commercial vessels and high-performance recreational boats requiring smooth shifting, high durability, and dependable operation. It’s commonly used in:

• Pilot and Patrol Boats: Offers quick shift response and quiet operation in harbor security and enforcement roles.

• Fishing Boats (Inshore and Coastal): Supports mid-range diesel engines operating under daily load conditions.

• Passenger Ferries and Tour Boats: Delivers low-vibration performance for vessels with frequent stop-start operations.

• Utility and Workboats: Used in tenders, harbor line boats, and crew transport craft.

• Recreational Cruisers: A popular choice for pleasure yachts needing a balance of torque, size, and smooth shifting.

Most Common Engine Models Paired with the Twin Disc MG5061

The MG5061 is typically matched with marine diesel engines producing between 300 and 450 horsepower. Its SAE No. 2 or 3 housing compatibility, gear ratio flexibility, and compact profile make it easy to integrate into many existing and new propulsion systems.

Cummins Marine Engines

• Cummins QSB 5.9

• Cummins QSB 6.7

• Cummins ISC 8.3 (light duty ratings)
  These engines provide high torque at low RPMs and are frequently paired with MG5061 transmissions in pilot boats, patrol craft, and fast ferries.

Caterpillar Marine Engines

• Caterpillar 3116 / 3126

• Caterpillar C7
  These Caterpillar engines offer compact power and strong mid-range performance, aligning well with the MG5061's hydraulic clutch and gear strength.

John Deere Marine Engines

• John Deere 6068SFM75

• John Deere 6090SFM85
  Widely used in ferries, tugs, and utility boats, these engines are a strong match for the MG5061 when continuous mid-duty performance is needed.

Detroit Diesel Marine Engines

• Detroit Diesel 6V53

• Detroit Diesel 6-71 (light-duty ratings)
  Frequently used in commercial boats from the 1970s–1990s, these engines remain a popular pairing for MG5061 in refit applications.

Advantages of the Twin Disc MG5061 Transmission

• Reliable Hydraulic Clutch System: Oil-cooled multi-disc clutch ensures smooth gear engagement and long service life.

• Flexible Installation Options: Available in straight or down-angle outputs for ease of alignment in tight engine rooms.

• Wide Gear Ratio Range: Offers excellent customization for hull type, speed profile, and propeller load.

• Durable Under Load: Rated for continuous duty in vessels operating in commercial or high-performance environments.

• Mechanical Simplicity: Easy to maintain and repair in the field or during scheduled maintenance intervals.

Ideal Use Cases for the MG5061