MG 507 Twin Disc Marine Transmission Parts - Gasket Set Section

Twin Disc MG507 Marine Transmission Parts – Gasket and Seal Kit Section

The Twin Disc MG507 and MG507A Gasket and Seal Kit is the essential sealing solution for one of the most widely used marine gears in mid-range propulsion systems. Whether installed in a workboat, trawler, or private vessel, the MG507 endures continuous thermal cycles, high oil pressure, and exposure to marine contaminants. Over time, its internal gaskets and seals naturally wear, leading to leaks, pressure loss, or poor clutch response. This precision-engineered kit restores full hydraulic integrity, prevents oil seepage, and ensures the gearbox maintains proper fluid containment for dependable performance.

Twin Disc Gasket and Seal Kit for Marine Gear MG507 & MG507A

This comprehensive kit includes:

• Gaskets for all main housings, inspection covers, and service ports
  
  

• Input and output shaft oil seals designed for long-term marine operation
  
  

• O-rings, compression washers, and sealing rings for hydraulic circuits
  
  

• Drain plug and filler port gaskets for complete leak protection
  
  

Each component is built to OEM-level specifications for correct fit and long-lasting reliability under continuous propulsion load. When installed, this kit restores full pressure balance, keeps transmission oil clean and contained, and prevents premature clutch wear caused by fluid loss.

Signs You May Need This Kit

• Transmission oil leaks around the bell housing, filter base, or output flange
  
  

• Drop in hydraulic oil pressure or delayed clutch engagement
  
  

• Visible oil film near inspection plates or beneath the gearbox
  
  

• Clutch chatter or inconsistent gear shifting due to fluid seepage
  
  

Replacing the gasket and seal kit at recommended service intervals helps prevent costly repairs and extends the life of your MG507 or MG507A transmission.

Rubber Block for Twin Disc Marine Gears

The rubber block is a vital vibration-absorbing component. The MG507 requires 20 of these. It cushions the drivetrain between the engine and transmission, absorbing torsional loads that occur under acceleration or propeller thrust changes. Over time, rubber hardens or cracks due to heat and oil exposure, allowing vibration to transfer directly to the gearbox. Installing a new rubber block restores smoother power transfer, reduces drivetrain noise, and protects internal components from excessive wear.

Twin Disc Oil Filter for Marine Transmission MG507

The oil filter for the MG507 transmission is designed to maintain hydraulic oil purity by capturing metal particles and contaminants before they circulate through clutch packs and bearings. Clean oil flow is crucial for precise clutch engagement and thermal stability. Replacing this filter during each service interval—or alongside gasket and seal replacement—prevents friction surface scoring and extends component life.

Benefits of Regular Filter Replacement:

• Keeps oil free of abrasive debris
  
  

• Supports consistent clutch pressure and smooth engagement
  
  

• Reduces risk of overheating and wear inside the transmission
  
  

• Extends the service life of gaskets and internal seals
  
  

Why Buy Parts For The Twin Disc MG507 from Diesel Pro Power

• Exact Fit for MG507 & MG507A: Every seal, gasket, and filter is engineered to factory-level tolerances for these specific models.
  
  

• Marine-Proven Materials: Resistant to oil, heat, and saltwater corrosion for dependable performance in all conditions.
  
  

• Complete Overhaul Solutions: Kits include every sealing surface component, minimizing downtime and ensuring a one-time installation.
  
  

• Trusted Worldwide: Over 40,000 marine customers rely on Diesel Pro Power for precision-fit Twin Disc parts and expert support.
  
  

• Fast Global Shipping: All MG507 kits and accessories are in stock and ready to ship with same-day processing.