Gasket Set

Twin Disc MG5065 Marine Transmission Parts – Gasket and Seal Kit Section

The Twin Disc MG5065SC and MG5065A Gasket and Seal Kit is engineered to provide complete sealing coverage for these marine transmission models. With constant exposure to oil pressure, heat cycles, and saltwater environments, the internal and external seals of the MG5065 series naturally degrade over time. This comprehensive kit ensures every sealing surface—from the clutch housing to the output flange—is protected, helping restore leak-free operation and full hydraulic integrity after a rebuild or service.

Twin Disc Gasket Kit for Marine Gear MG5065SC & MG5065A

This gasket and seal kit includes:

• High-performance gaskets for all major housing joints and inspection covers
  
  

• Oil seals for input and output shafts
  
  

• O-rings and washers for internal valve bodies and fittings
  
  

• Rear case sealing components and drain plug gaskets
  
  

Each component is precision-cut and built to withstand marine-grade oil and temperature extremes. When installed properly, this kit restores internal pressure balance and protects against oil leaks that can cause clutch slippage, overheating, or gear damage.

Signs You May Need This Kit

• Drips or oil streaks near the bell housing or output flange
  
  

• Drop in transmission oil level or pressure
  
  

• Visible seepage around inspection covers or filter housings
  
  

• Clutch engagement delays or rough shifting due to hydraulic pressure loss
  
  

Overhaul Plate Kit for Twin Disc Marine Gear MG5065SC & MG5065A

To complement the gasket kit, the Overhaul Plate Kit includes the full set of friction and steel clutch plates needed to restore the clutch pack’s holding capacity. Replacing both the gasket set and overhaul plate kit together ensures a complete internal refresh—sealing leaks, improving power transfer, and returning the MG5065SC or MG5065A to like-new performance.

Why Buy Parts For Your Twin Disc MG5065 From Diesel Pro Power

• Exact MG5065 Fitment: Specifically curated for MG5065SC and MG5065A transmissions—no generic or mismatched components.
  
  

• Marine-Grade Durability: Materials engineered for saltwater environments and high oil temperatures.
  
  

• Trusted Worldwide: Over 40,000 satisfied marine customers depend on Diesel Pro for reliability and technical precision.
  
  

• Fast Global Shipping & Expert Support: Get the right kit fast, with expert guidance available every step of the way.