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    PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027
    PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027

    PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027

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    €48.90
    Tax Included
    Bajo pedido, plazo confirmado en 24 horas.

    The valve that lets the burnt gases out of the engine to the exhaust.

    Quantity :
    In stock

    Bajo pedido, plazo confirmado en 24 horas.

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      PROX offers this exhaust valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027. A four-stroke engine breathes through its valves. The exhaust valves open to let the burnt gases out to the pipe, then close again.

      Titanium or steel valve?

      The material is shown in the product name.

      • Titanium: about 40% lighter than steel, it allows high revs without valve float; it costs more and its coating wears faster if the seats and guides are tired.
      • Steel or stainless: heavier, but very wear-resistant and cheaper; as a replacement for titanium it lasts longer, with springs suited to its weight.
      • Tip: replace valves as a set, have the seats checked and fit new valve stem seals.

      Why choose PROX?

      ProX valves come from Japanese OEM factories; the titanium versions are forged in one piece and chromium-nitride (CrN) coated against wear.

      When should you replace the valves on your KTM EXCF 450?

      Hard hot starting, valve clearance that keeps closing up or a noisy timing chain: the valve train is wearing.

      Specifications and fitting tips

      • Manufacturer part number: 28.6420-1

      Spare parts and items to plan

      Compatibility

      Check the exact model and year of your bike in the list below before ordering.

      Fits:
      GAS GAS ECF 450 2025
      GAS GAS ECF 450 2024
      GAS GAS ECF 500 2026
      GAS GAS ECF 500 2025
      GAS GAS ECF 500 2024
      GAS GAS ES 500 2025
      GAS GAS ES 500 2024
      HUSQVARNA FE 450 2024
      HUSQVARNA FE 450 2023
      HUSQVARNA FE 450 2022
      HUSQVARNA FE 450 2021
      HUSQVARNA FE 450 2020
      HUSQVARNA FE 501 2024
      HUSQVARNA FE 501 2023
      HUSQVARNA FE 501 2022
      HUSQVARNA FE 501 2021
      HUSQVARNA FE 501 2020
      KTM EXCF 450 2027
      KTM EXCF 450 2026
      KTM EXCF 450 2025
      KTM EXCF 450 2024
      KTM EXCF 450 2023
      KTM EXCF 450 2022
      KTM EXCF 450 2021
      KTM EXCF 450 2020
      KTM EXCF 500 2027
      KTM EXCF 500 2026
      KTM EXCF 500 2025
      KTM EXCF 500 2024
      KTM EXCF 500 2023
      KTM EXCF 500 2022
      KTM EXCF 500 2021
      KTM EXCF 500 2020
      KTM XCFW 450 2027
      KTM XCFW 450 2026
      KTM XCFW 450 2025
      KTM XCFW 450 2024
      KTM XCFW 450 2023

      PROX
      28.6420-1
      10 Items

      Specific References

      Click on your bike to see all compatible parts.

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      PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027
      PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027
      PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027
      PROX steel Exhaust Valve for KTM EXCF, XCFW 450, 500, HUSQVARNA FE 450, 501 and GAS GAS ECF, ES 450, 500 2020-2027
      €48.90
      Tax Included