Twin Disc MG5111 Marine Transmission Parts for Australia - Gasket and Seal Kit Section

Twin Disc MG5111 Marine Transmission – Gasket and Seal Kit Section

The Twin Disc MG5111 and MG5111A marine transmissions rely on precise sealing and friction components to deliver smooth, reliable performance under continuous marine operation. Below you’ll find the two key service components that technicians typically replace together during overhaul: the Overhaul Plate Kit and the Gasket and Seal Kit. Each is designed to restore critical systems—clutch engagement, oil retention, and pressure balance—to factory-level performance.

Overhaul Plate Kit For Twin Disc MG5111 

The Overhaul Plate Kit for the Twin Disc MG5111 and MG5111A transmissions contains all the clutch pack components required to restore precise power transfer between the engine and propeller shaft. This kit is designed for complete clutch replacement and is often installed during major service intervals or whenever gear engagement becomes inconsistent.

What the Kit Includes:

• Friction plates – Transfer torque through hydraulic pressure and clutch engagement.
  
  

• Steel reaction plates – Provide structural support and even pressure distribution across the clutch pack.
  
  

• Separator and alignment plates – Maintain proper spacing and balance during operation.
  
  

• Retaining hardware and surface-prepped discs – Ensure reliable operation under heavy marine load conditions.
  
  

Signs You May Need This Kit:

• Slipping or delayed clutch engagement under load.
  
  

• Rough or uneven shifting between gears.
  
  

• Loss of torque or propulsion despite normal engine RPM.
  
  

• Burning odor or discolored transmission oil (from excessive clutch friction).
  
  

• Vibration or chatter during engagement.
  
  

Replacing the worn clutch components with this overhaul plate kit restores crisp, consistent engagement and helps eliminate performance loss caused by worn or warped plates. Most technicians pair this with a Gasket and Seal Kit to complete a full internal refresh, improving both mechanical and hydraulic reliability in one service.

Gasket and Seal Kit For Twin Disc MG5111

The Gasket and Seal Kit for the Twin Disc MG5111 and MG5111A ensures proper sealing across all critical oil and pressure interfaces in the transmission. This kit is essential for maintaining fluid retention, preventing cross-leaks, and ensuring the clutch pack operates under consistent hydraulic pressure.

What the Kit Includes:

• High-temperature gaskets for transmission covers and housings.
  
  

• O-rings and sealing rings for shafts and hydraulic passages.
  
  

• Lip and shaft seals to prevent oil leaks at input and output ends.
  
  

• Internal sealing components for clutch piston assemblies and pressure ports.
  
  

Signs You May Need This Kit:

• Oil drips or residue forming beneath the transmission.
  
  

• Soft or slipping clutch engagement due to hydraulic pressure loss.
  
  

• Visible gasket wear or hardening during inspection.
  
  

• Low transmission oil levels without external leaks elsewhere.
  
  

• Excessive heat buildup or whining noise from fluid loss.
  
  

Installing this gasket and seal kit restores the MG5111’s ability to maintain full oil pressure and eliminates fluid loss that can cause overheating or premature clutch wear. When used together with the overhaul plate kit, it creates a complete reseal and rebuild solution—extending the service life of your Twin Disc MG5111 and ensuring reliable, leak-free performance.

Why Buy Your MG5111 Parts from Diesel Pro Power

When it’s time to overhaul or reseal your MG5111, Diesel Pro Power provides the confidence that comes from precision, expertise, and availability:

• Exact Compatibility: Every gasket, seal, and clutch plate kit is curated exclusively for MG5111 and MG5111A marine gears.
  
  

• Marine-Proven Quality: Parts are engineered to meet or exceed OEM performance for sealing, wear resistance, and temperature tolerance.
  
  

• Immediate Availability: Diesel Pro Power keeps all MG5111 kits in stock and ready to ship—reducing downtime and avoiding costly delays.
  
  

• Technical Support You Can Trust: Our team specializes in Twin Disc marine transmissions, helping you choose the right components for your maintenance plan.
  
  

• Trusted by Professionals Worldwide: With over 40,000 satisfied customers across 180 countries, Diesel Pro Power is the preferred source for Twin Disc parts.
  
  

Ordering your MG5111 overhaul and gasket kits from Diesel Pro Power means investing in precision-engineered components backed by real-world expertise—ensuring your marine transmission stays sealed, reliable, and ready for the next voyage.