Twin Disc MG 506 Marine Transmission Parts for Canada - Gasket Set Section

Twin Disc MG506 Marine Transmission Parts – Gasket Set Section

The gasket and seal system in a Twin Disc MG506 marine transmission is the foundation of its reliability. Whether the transmission is in a fishing vessel, tugboat, or private cruiser, these sealing components prevent internal fluid loss, stop cross-contamination between gear chambers, and maintain precise hydraulic pressure for consistent clutch performance. Over time, even small gasket leaks can lead to transmission slippage, clutch wear, and internal corrosion. The Twin Disc MG506 Gasket and Seal Kit is designed to restore these critical barriers in one comprehensive package, ensuring your gear stays tight, dry, and ready for years of dependable operation.

Twin Disc Gasket and Seal Kit for MG506 & MG506-1

The complete gasket and seal kit for the MG506 and MG506-1 includes all the critical soft components required to reseal both the clutch housing and the hydraulic control system. It covers every sealing surface exposed during an overhaul or service inspection, including cover gaskets, O-rings, oil seals, shaft seals, and specialized sealing washers. Each piece is precision-cut or molded to OEM-equivalent dimensions, ensuring a perfect fit that eliminates seepage and maintains internal oil pressure.

This kit is recommended anytime you split the gear case, replace clutch discs, or notice oil weeping from inspection covers or output shafts. Common symptoms that suggest replacement include hydraulic pressure loss, milky or foamy oil, visible gasket deterioration, or persistent drips around the output flange or input coupling. Resealing with this kit not only restores performance but also protects costly internal components—such as bearings and clutches—from damage caused by oil loss or contamination.

The MG506’s medium-duty profile makes it a favorite in small workboats and pleasure craft, and this kit is specifically curated to match its sealing geometry, whether it’s a straight or shallow case configuration. Using this kit ensures that both the front and rear housings are correctly sealed without guesswork or the need to source individual pieces.

Rubber Block for Twin Disc Marine Gears

Also featured in this section is the Twin Disc rubber block, an often-overlooked but vital component used across multiple models—including the MG506, MG507, and MG509. The rubber block serves as a vibration isolator, cushioning the transmission from engine torque pulses and hull vibrations. It helps maintain alignment between the transmission and propeller shaft, reducing mechanical stress and extending the life of couplings, seals, and bearings.

Replacing worn or hardened rubber blocks is essential during any reseal or rebuild. A failed isolator can lead to driveline misalignment, increased noise, and premature gasket wear from housing flex. Diesel Pro Power provides these blocks built from high-grade marine elastomers engineered to withstand constant oil exposure, saltwater conditions, and high-load environments typical of marine propulsion systems.

Why Buy Your Twin Disc MG506 Gasket and Seal Kit from Diesel Pro Power

• Exact Fit, No Guesswork: Every gasket and seal kit is specifically designed for the Twin Disc MG506 and MG506-1—no mismatched seals or missing components.
  
  

• Complete Kits: Includes all O-rings, seals, and gaskets needed to fully reseal your marine gear in one purchase. No need to source individual pieces.
  
  

• Trusted by Professionals: Over 40,000 satisfied customers worldwide depend on Diesel Pro Power for quality, reliability, and fast service.
  
  

• Fast, Reliable Shipping: All parts are stocked and ready to ship immediately, minimizing vessel downtime and keeping your operation moving.
  
  

• Expert Support: Our team knows Twin Disc gears inside and out. We can confirm fitment, help identify your model, and offer guidance for installation.
  
  

• Marine-Grade Quality: Built to meet or exceed OEM standards, ensuring long-lasting seals that resist oil, pressure, and saltwater exposure.
  
  

• One Trusted Source: From gasket kits to rubber blocks and overhaul plates, Diesel Pro Power provides everything you need to keep your MG506 running strong—all in one place.