Twin Disc MG5114 Marine Transmission Parts - Overhaul Plate Kit Section

Twin Disc MG5114 Marine Transmission Parts – Overhaul Plate Kit Section

The Twin Disc MG5114 marine transmission overhaul plate kit is one of the most important service packages for restoring clutch performance and extending the lifespan of the gearbox. Designed specifically for the MG5114 and MG5114A series, this kit includes the precision-engineered friction and steel plates that form the heart of the transmission’s clutch assembly. Over time, these plates wear down due to continuous heat, oil pressure, and torque cycling. Replacing them as part of a scheduled overhaul ensures smooth engagement, reliable torque transfer, and efficient propulsion performance in demanding marine environments.

This section also includes the gasket and seal kit for the MG5114, providing the necessary sealing components to prevent fluid leaks and maintain hydraulic integrity during operation. Together, the overhaul plate kit and gasket set make up a complete internal refresh for the MG5114 series—ideal for shipyards, fleet maintenance programs, and individual vessel owners who demand peak performance and long-term reliability.

Overhaul Plate Kit for Twin Disc MG5114 Marine Transmission

The overhaul plate kit restores the transmission’s clutch pack system—the critical interface that engages and transmits power between the engine and propeller shaft. Each kit includes friction discs and steel plates manufactured to Twin Disc specifications, ensuring exact tolerances for plate thickness and pack height. Proper clutch plate fitment ensures that the MG5114 engages smoothly and delivers full torque without slippage.

Key Features:

• Includes both friction and steel plates, matched for perfect pressure balance and plate clearance
  
  

• Manufactured to OEM-grade tolerances for consistent clutch engagement and disengagement
  
  

• Designed to withstand marine-grade oil temperatures and high-pressure loads
  
  

• Ensures stable clutch pack compression for long-term reliability under heavy use
  
  

• Restores factory-level performance and responsiveness after thousands of operating hours
  
  

When to Replace the Overhaul Plate Kit:

• Clutch slippage or delayed engagement when shifting into gear
  
  

• Noticeable vibration or chatter during acceleration
  
  

• Burnt smell or darkened transmission oil from overheated clutch plates
  
  

• Reduced power transfer to the propeller under load
  
  

• Preventative maintenance after extended service intervals or before major voyages
  
  

Replacing the overhaul plates as part of a complete transmission service ensures smoother engagement, greater fuel efficiency, and improved propulsion control in both forward and reverse operation.

Gasket and Seal Kit for Twin Disc MG5114 Marine Transmission

The gasket and seal kit is designed to complement the overhaul plate kit by providing complete sealing coverage across the MG5114’s critical joints, covers, and hydraulic passages. Proper sealing prevents oil leaks, maintains internal pressure, and protects clutch plates from contamination or oil starvation.

Key Features:

• Comprehensive reseal package including housing gaskets, O-rings, and oil seals
  
  

• Designed for shallow case MG5114 and MG5114SC transmissions with ratios from 0.93:1 to 3:1
  
  

• Heat- and oil-resistant materials provide long-term protection against hydraulic leaks
  
  

• Maintains precise oil pressure balance for consistent clutch engagement
  
  

• Compatible with both standard and shallow-case configurations
  
  

When to Replace Gaskets and Seals:

• Oil seepage from housing edges or around covers
  
  

• Drop in hydraulic pressure readings
  
  

• Visible cracks or deformation in old gasket material
  
  

• Routine replacement during overhaul or clutch service
  
  

Performing a full reseal at the same time as a clutch rebuild ensures leak-free operation and extends the service life of both the oil system and clutch pack.

Benefits of Performing a Full Overhaul on the MG5114

A complete overhaul using both the plate kit and gasket kit restores the MG5114’s original torque handling capacity, smooth clutch action, and hydraulic efficiency. It eliminates oil leaks, ensures even pressure distribution across clutch plates, and helps prevent costly downtime due to slippage or seal failure. A properly rebuilt MG5114 operates quieter, engages more smoothly, and maintains its designed torque load even in heavy-duty service.

Advantages include:

• Reduced downtime and extended service intervals
  
  

• Improved clutch response and smoother shifting
  
  

• Reduced oil leakage and lower maintenance costs
  
  

• Protection against premature wear on internal bearings and gears
  
  

• Enhanced overall propulsion efficiency and vessel handling
  
  

Installation & Maintenance Notes

• Always use clean, OEM-approved transmission oil when refilling after overhaul.
  
  

• Inspect oil coolers and filters before reassembly to prevent contamination.
  
  

• Follow Twin Disc torque specifications for all fasteners to ensure proper sealing and pressure distribution.
  
  

• After installation, monitor oil pressure and temperature to verify system balance.
  
  

Regular service and careful installation help preserve the MG5114’s operational integrity and deliver years of reliable performance.

Why Buy Overhaul Plate Kits for the Twin Disc MG5114 from Diesel Pro Power

When it’s time to rebuild your MG5114 or MG5114A transmission, Diesel Pro Power provides the most trusted, marine-proven overhaul solutions available worldwide. Diesel Pro Power’s overhaul plate kits and gasket sets are designed to meet or exceed OEM standards, ensuring that your transmission performs exactly as intended.

1. Exact MG5114 Compatibility
Every overhaul plate kit and gasket set is specifically engineered for the MG5114 and MG5114A series—guaranteeing perfect fitment, correct clutch pack height, and leak-free sealing in both standard and shallow-case configurations.

2. Marine-Grade Quality
Each component is made from premium friction materials, hardened steels, and oil-resistant gaskets built to endure the constant torque, vibration, and heat of marine operation.

3. Comprehensive Overhaul Solutions
Diesel Pro Power stocks the complete internal service set—including overhaul plate kits, gasket kits, seals, bearings, and other wear parts—allowing you to complete your entire MG5114 rebuild with confidence and consistency.

4. Proven Performance Worldwide
With over 40,000 satisfied marine customers, Diesel Pro Power has earned the trust of captains, shipyards, and fleet operators for supplying quality Twin Disc parts that deliver dependable results in the most demanding conditions.

5. Fast Global Shipping and In-Stock Availability
All MG5114 kits are in stock and ready for immediate dispatch, minimizing vessel downtime and ensuring that your rebuild project proceeds without delays.

6. Expert Technical Support
Not sure which configuration—standard or shallow case—your MG5114 requires? Diesel Pro Power’s technical specialists can confirm compatibility, and help you select all the parts you need for a complete overhaul.

In Summary:
A full Twin Disc MG5114 overhaul plate and gasket kit replacement from Diesel Pro Power restores your transmission’s clutch integrity, seals, and operating performance to factory specifications. Whether you’re refreshing a single gearbox or performing fleet-wide maintenance, these marine-grade kits deliver unmatched durability, precise fitment, and the peace of mind that comes from working with the world’s most trusted Twin Disc parts supplier.