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    Valve stem seals

    Discover quality valve stem seals for motorcycle engines at starmoto.eu. Correctly sealing the valve stems helps reduce oil consumption, smoke, and carbon deposits, keeping your engine clean and efficient.

    Our range of valve stem seals is selected to offer reliable fit and long service life for many motorcycle models. Choose the right seals when rebuilding your cylinder head, replacing valves, or solving oil burning issues.

    Why replace your valve stem seals?

    • Reduce oil leakage into the combustion chamber
    • Improve engine performance and emissions
    • Extend the life of valves and guides
    • Support a smooth, reliable engine rebuild

    If you are unsure which valve stem seals fit your bike, check your model specifications or contact support with your motorcycle details for guidance.

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    Items 73-97 of 97

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      • Moto GP weekend
      • 21-30 business days
      SEAL VALVE STEM 6PKSEAL VALVE STEM 6PK
      • Moto GP weekend
      • 21-30 business days
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      SEAL VALVE STEM 6PK
      Special Price €10.50 Regular Price €12.00 -13%
      • Moto GP weekend
      • 1-2 business days
      SEAL VALVE STEM 2PKSEAL VALVE STEM 2PK
      • Moto GP weekend
      • 1-2 business days
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      SEAL VALVE STEM 2PK
      Special Price €18.00 Regular Price €21.00 -14%
      • Moto GP weekend
      • 1-2 business days
      VALVE SEAL 4.5MM VITONVALVE SEAL 4.5MM VITON
      • Moto GP weekend
      • 1-2 business days
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      VALVE SEAL 4.5MM VITON
      Special Price €20.50 Regular Price €25.00 -18%
      • Moto GP weekend
      • 21-30 business days
      SEALS VALVE 17-19 M8 8PKSEALS VALVE 17-19 M8 8PK
      • Moto GP weekend
      • 21-30 business days
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      SEALS VALVE 17-19 M8 8PK
      Special Price €25.50 Regular Price €29.00 -12%
      • Moto GP weekend
      • 21-30 business days
      SEAL VALVE STEM 4PKSEAL VALVE STEM 4PK
      • Moto GP weekend
      • 21-30 business days
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      SEAL VALVE STEM 4PK
      Special Price €12.00 Regular Price €15.00 -20%
      • Moto GP weekend
      • 1-2 business days
      VALVE SEAL KIT CRF250RVALVE SEAL KIT CRF250R
      • Moto GP weekend
      • 1-2 business days
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      VALVE SEAL KIT CRF250R
      Special Price €17.00 Regular Price €21.00 -19%
      • Moto GP weekend
      • 21-30 business days
      SEAL VIT 6.0X0.475 M8 8/PSEAL VIT 6.0X0.475 M8 8/P
      • Moto GP weekend
      • 21-30 business days
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      SEAL VIT 6.0X0.475 M8 8/P
      Special Price €25.50 Regular Price €31.50 -19%
      • Ask about availability
      SEAL VG IN/EX KTM250 4/PKSEAL VG IN/EX KTM250 4/PK
      • Ask about availability
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      SEAL VG IN/EX KTM250 4/PK
      €20.00
      • Moto GP weekend
      • 1-2 business days
      SEAL VG IN/EX YZ450 4/PKSEAL VG IN/EX YZ450 4/PK
      • Moto GP weekend
      • 1-2 business days
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      SEAL VG IN/EX YZ450 4/PK
      Special Price €16.50 Regular Price €20.00 -18%
      • Ask about availability
      ValvesealValveseal
      • Ask about availability
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      Valveseal
      €5.35
      • Ask about availability
      ProX Valve Stem Seal KTM350SX-F '11-22 + KTM350EXC-F '12-22ProX Valve Stem Seal KTM350SX-F '11-22 + KTM350EXC-F '12-22
      • Ask about availability
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      ProX Valve Stem Seal KTM350SX-F '11-22 + KTM350EXC-F '12-22
      €3.35
      • Moto GP weekend
      • 1-4 business days
      Valve stem seal PROX RM-Z250 '07-20 + GSX-R1000 '05-10Valve stem seal PROX RM-Z250 '07-20 + GSX-R1000 '05-10
      • Moto GP weekend
      • 1-4 business days
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      Valve stem seal PROX RM-Z250 '07-20 + GSX-R1000 '05-10
      Special Price €3.55 Regular Price €4.35 -18%
      • Ask about availability
      Athena Valve Stem Seals Kit Yamaha XJR 1300 / XJR 1300 SP - 1999/2011Athena Valve Stem Seals Kit Yamaha XJR 1300 / XJR 1300 SP - 1999/2011
      • Ask about availability
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      Athena Valve Stem Seals Kit Yamaha XJR 1300 / XJR 1300 SP - 1999/2011
      €24.50
      • Ask about availability
      ProX Valve Stem Seal YFM660/700R Raptor '01-23ProX Valve Stem Seal YFM660/700R Raptor '01-23
      • Ask about availability
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      ProX Valve Stem Seal YFM660/700R Raptor '01-23
      €11.00
      • Ask about availability
      ProX Valve Stem Seal YZ250F '14-23 + WR250F '15-23ProX Valve Stem Seal YZ250F '14-23 + WR250F '15-23
      • Ask about availability
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      ProX Valve Stem Seal YZ250F '14-23 + WR250F '15-23
      €5.35
      • Ask about availability
      ProX Valve Stem Seal YFM350F Warrior '87-04 + XT600/E '84-02ProX Valve Stem Seal YFM350F Warrior '87-04 + XT600/E '84-02
      • Ask about availability
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      ProX Valve Stem Seal YFM350F Warrior '87-04 + XT600/E '84-02
      €10.50
      • Ask about availability
      ProX Valve Stem Seal KTM250SX-F '06-23 + KTM250EXC-F '07-23ProX Valve Stem Seal KTM250SX-F '06-23 + KTM250EXC-F '07-23
      • Ask about availability
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      ProX Valve Stem Seal KTM250SX-F '06-23 + KTM250EXC-F '07-23
      €4.35
      • 1-2 business days
      • In the Tallinn store
      Valve stem seals VD 14,40mm SD 11,50mm stem 5,00mmValve stem seals VD 14,40mm SD 11,50mm stem 5,00mm
      • 1-2 business days
      • In the Tallinn store
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      Valve stem seals VD 14,40mm SD 11,50mm stem 5,00mm
      €6.20
      • Moto GP weekend
      • 1-4 business days
      Valve stem seal PROX YZ450F '10-16 + VMAX 1200 '86-01Valve stem seal PROX YZ450F '10-16 + VMAX 1200 '86-01
      • Moto GP weekend
      • 1-4 business days
      Add to Wish List Add to Compare
      Valve stem seal PROX YZ450F '10-16 + VMAX 1200 '86-01
      Special Price €6.40 Regular Price €7.90 -19%
      • Ask about availability
      ProX Valve Stem Seal RM-Z450 '07-20 + LT-R450 '06-11ProX Valve Stem Seal RM-Z450 '07-20 + LT-R450 '06-11
      • Ask about availability
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      ProX Valve Stem Seal RM-Z450 '07-20 + LT-R450 '06-11
      €4.15
      • Ask about availability
      ProX Valve Stem Seal KX450F '06-23 + KFX450R '08-14ProX Valve Stem Seal KX450F '06-23 + KFX450R '08-14
      • Ask about availability
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      ProX Valve Stem Seal KX450F '06-23 + KFX450R '08-14
      €4.95
      • Ask about availability
      ProX Valve Stem Seal YZ450F '03-09 + YFZ450 '04-13ProX Valve Stem Seal YZ450F '03-09 + YFZ450 '04-13
      • Ask about availability
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      ProX Valve Stem Seal YZ450F '03-09 + YFZ450 '04-13
      €6.15
      • Moto GP weekend
      • 1-4 business days
      Valve stem seal PROX CRF450R '02-08 + TRX400EX/X '99-14Valve stem seal PROX CRF450R '02-08 + TRX400EX/X '99-14
      • Moto GP weekend
      • 1-4 business days
      Add to Wish List Add to Compare
      Valve stem seal PROX CRF450R '02-08 + TRX400EX/X '99-14
      Special Price €6.10 Regular Price €7.50 -19%
      • Ask about availability
      ProX Valve Stem Seal KTM400/450/505/520/525/530SX-EXC '00-11ProX Valve Stem Seal KTM400/450/505/520/525/530SX-EXC '00-11
      • Ask about availability
      Add to Wish List Add to Compare
      ProX Valve Stem Seal KTM400/450/505/520/525/530SX-EXC '00-11
      €3.95
      • Ask about availability
      ProX Valve Stem Seal CRF150R '07-23 + CRF250R '08-15ProX Valve Stem Seal CRF150R '07-23 + CRF250R '08-15
      • Ask about availability
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      ProX Valve Stem Seal CRF150R '07-23 + CRF250R '08-15
      €8.90
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