Valve Stem Seals – 50cc-149cc


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A pair of genuine 'YX Racing' valve stem oil seals to fit 50cc - 149cc horizontal engines.

2 oil seals for the inlet valve and the exhaust valve

  • Valve stem oil seals keep unwanted oil from entering the combustion chamber.
  • It is used to replace the old or broken engine valve stem seal, easy to install.
  • Suitable for replacing your broken one.

Outside diameter - 10.2mm
Inside diameter - 4.0mm (designed for 5.0mm stem rods)
Height - 7.7mm

Suitable for most horizontal pit bike engines with Honda type heads, this tends to be 50cc - 149cc

Will not fit 4 valve engines

Will not fit engines with KLX heads such as the YX150, ZS155, YX160, ZS190


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