Seal, drive, Viton, MB


This is a specially made MRB Race-Tour Drive side Viton seal.

Viton resists modern fuels so will not break down in use.

TOP TIP, always grease and oil both the crank drive shoulder and seal and spin the crank as the crank is pulled into the bearing.



Seal, drive, Viton, MB
  • Seal, drive, Viton, MB
  • Seal, drive, Viton, MB
  • Seal, drive, Viton, MB
  • Seal, drive, Viton, MB
  • Seal, drive, Viton, MB

£ 5.72
Price: £ 4.77 Ex Vat

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  • Viton brown rubber separates it from normal black and blue nitrile seals.
  • Two seals available, Drive side and Large mag seal.
  • Marked with the quality MRB Race-Tour branding.


  • Made from special higher wearing Viton rubber.
  • Doesn't break down with unleaded fuels.

Development History

  • After manufacturing, designing and testing hundreds of performance MRB engines, Mark found when stripping these engines after many miles the only thing in common with each engine was the seals were worn out whilst all the performance parts were perfectly alright.
  • This minor failure of seals over many miles lead us to develop these new MRB Viton seals.

Reasons to Buy

  • Longer lasting.
  • Harder wearing.
  • MRB quality.


  • Fit the seal dry on outer edges.
  • Grease or oil inner seal faces before fitting.
  • Oil seal surfaces on crankshaft.
  • Use a crankshaft puller to fit the crankshaft.
  • Spin the crankshaft when drawing into place.

Fitted Pictures ( 1 )


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