Twin Disc MG 5050 Marine Transmission Parts for Australia - Overhaul Plate Kit Section

Twin Disc MG5050 Marine Transmission Parts — Overhaul Plate Kit Section (MG5050 · MG5050A · MG5050SC)

This section gives you a fast, catalog-style path to the three essentials for servicing the Twin Disc MG5050 family: the Overhaul Plate Kit, the Gasket & Seal Kit, and the Rubber Blocks. Each item below is organized the same way—what the part is, what it includes, and the signs you might need to change it—so you can validate the repair plan before opening the gear. All guidance is focused on MG5050, MG5050A, and MG5050SC units; simply confirm your model, ratio, and tag details, then use the concise fitment and installation notes to select the right kit and complete the job with confidence. For quick, correct sourcing, Diesel Pro Power pre-verifies kit contents against MG5050-series builds, packages components to arrive clean and installation-ready, and supports every order with experienced, marine-focused help—trusted by 40,000+ satisfied customers.

Overhaul Plate Kit

What it is
A matched clutch plate pack designed to restore proper torque transfer and smooth engagement in MG5050-series gears.

What it includes

• Friction plates (forward and reverse)
  
  

• Steel separator plates matched to MG5050 stack specs
  
  

• Any model-specific spacers/shims required by the pack design
  
  

Signs you might need to replace

• Engine RPM rises without proportional vessel speed (slip under load)
  
  

• Harsh, chattering, or delayed shift-in to forward or reverse
  
  

• Burnt odor or darkened oil; friction material visible in screen/filter
  
  

• Normal line pressure but weak hold or quick temperature rise in operation
  
  

Fitment notes

• Fits MG5050, MG5050A, and MG5050SC (shallow case) variants; confirm ratio and tag data before ordering
  
  

• Internal pack counts can vary by build—verify model, ratio, and serial to match the correct stack height
  
  

Installation notes

• Pre-soak friction plates in approved oil; maintain exact plate order/orientation
  
  

• Measure and record stack height and clutch clearances; compare to spec
  
  

• Inspect clutch drum/hub splines and piston seals; address wear before reassembly
  
  

• Pressure-test forward and reverse after installation at idle and raised RPM
  
  

Gasket & Seal Kit

What it is
A complete sealing set for MG5050-series service work to restore leak-free operation and hydraulic integrity.

What it includes

• Input/output shaft oil seals (per build)
  
  

• O-rings and backup rings for control valves and service plugs
  
  

• Cover and inspection plate gaskets
  
  

• Sealing washers as required for MG5050 family configurations
  
  

Signs you might need to replace

• Oil seepage at shafts, inspection covers, or control housings
  
  

• Erratic or low apply pressures caused by internal bypass/leakdown
  
  

• Any time the housing is opened for clutch service or internal inspection
  
  

• Evidence of water intrusion or emulsified oil
  
  

Fitment notes

• Compatible with MG5050, MG5050A, and MG5050SC; confirm serial/build to ensure lip-seal dimensions match your unit
  
  

Installation notes

• Clean sealing surfaces; remove old gasket material without scratching
  
  

• Lightly lubricate O-rings; use guide sleeves to protect lip seals over splines/keyways
  
  

• Verify breather condition—restricted breathers can force oil past good seals
  
  

Rubber Blocks (Mounting/Isolation)

What it is
Resilient rubber isolation blocks used to support and cushion the transmission assembly, controlling vibration and shock loads.

What it includes

• Rubber block(s) sized for marine gear mounting points
  
  

• In some installations, associated hardware is separate—verify your setup
  
  

Signs you might need to replace

• Excessive vibration or new drivetrain harshness at typical cruising RPM
  
  

• Visible cracking, flattening, or oil-soaked rubber that’s gone soft
  
  

• Misalignment recurring after alignment was previously corrected
  
  

Fitment notes

• Select blocks specified for MG5050-series mounting geometry; verify hole spacing and load rating for your installation
  
  

• Replacing aged or oil-damaged blocks helps protect fresh clutch work by reducing shock loading
  
  

Installation notes

• Support the gear safely; replace blocks in matched sets when possible
  
  

• Re-check engine/gear alignment after installation to manufacturer tolerance
  
  

Why Buy MG5050 Overhaul Parts from Diesel Pro Power

Product Matching & Verification

What it means for you
Accurate kit selection the first time. Provide model (MG5050/MG5050A/MG5050SC), ratio, and serial/build data; we confirm pack design and seal dimensions before fulfillment.

Marine-Grade Quality & Packaging

What it means for you
Friction and steel plates arrive protected and flat; seals are fresh and correctly bagged to prevent contamination prior to installation.

Technician-Ready Descriptions

What it means for you
Clear “what it is / what it includes / signs you might need it” formatting reduces bench time and helps validate the repair plan before you open the case.

One-Stop Convenience

What it means for you
Pair the Overhaul Plate Kit with the Gasket & Seal Kit and Rubber Blocks so you complete the service without mid-job sourcing delays.

Practical Support

What it means for you
Need confirmation on stack height targets, shallow-case notes, or seal orientation? Have your tag data ready—our team helps you verify details quickly and keep the job moving.