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    ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009
    ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009

    ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009

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    €243.90
    Tax Included
    Available from our supplier, shipped within 10 to 15 days.

    The piston moves up and down in the cylinder to turn combustion into motion: this kit replaces it along with its rings, pin and clips.

    Quantity :
    In stock

    Available from our supplier, shipped within 10 to 15 days.

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      ATHENA offers this piston kit for KTM LC4 620, LC4 640, SXC 625 1994-2009. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

      Why choose a forged piston?

      Instead of simply being cast, a forged piston is hot-pressed under very high pressure and then machined: its metal is denser and free of air pockets.

      • Stronger when hot: it copes better with high revs, overheating and detonation.
      • Lighter for the same strength: less stress on the connecting rod and bearings.
      • Good to know: depending on the alloy, it expands a little more and is fitted with more clearance; slight noise when cold is normal.
      • Why does it cost more? Forging tools, full machining and surface treatments cost more than simple casting.

      Why choose ATHENA?

      Athena, the Italian manufacturer founded in 1973, is an original-equipment supplier to manufacturers such as KTM and Ducati: the same standards for your replacement parts.

      When should you replace the piston on your KTM LC4 620?

      Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

      No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 50 h in hard use and every 100 h for leisure.

      Specifications and fitting tips

      • Engine: 4-stroke
      • Size : 101.94 mm
      • Manufacturer part number: S4F102000050

      Spare parts and items to plan

      Compatibility

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

      Fits:
      KTM LC4 620 2009
      KTM LC4 620 2008
      KTM LC4 620 2007
      KTM LC4 620 2006
      KTM LC4 620 2005
      KTM LC4 620 2004
      KTM LC4 620 2003
      KTM LC4 620 2002
      KTM LC4 620 2001
      KTM LC4 620 2000
      KTM LC4 620 1999
      KTM LC4 620 1998
      KTM LC4 620 1997
      KTM LC4 620 1996
      KTM LC4 620 1995
      KTM LC4 620 1994
      KTM LC4 640 2009
      KTM LC4 640 2008
      KTM LC4 640 2007
      KTM LC4 640 2006
      KTM LC4 640 2005
      KTM LC4 640 2004
      KTM LC4 640 2003
      KTM LC4 640 2002
      KTM LC4 640 2001
      KTM LC4 640 2000
      KTM LC4 640 1999
      KTM LC4 640 1998
      KTM LC4 640 1997
      KTM LC4 640 1996
      KTM LC4 640 1995
      KTM LC4 640 1994
      KTM SXC 625 2009
      KTM SXC 625 2008
      KTM SXC 625 2007
      KTM SXC 625 2006
      KTM SXC 625 2005
      KTM SXC 625 2004
      KTM SXC 625 2003
      KTM SXC 625 2002
      KTM SXC 625 2001
      KTM SXC 625 2000
      KTM SXC 625 1999
      KTM SXC 625 1998
      KTM SXC 625 1997
      KTM SXC 625 1996
      KTM SXC 625 1995
      KTM SXC 625 1994

      ATHENA
      S4F102000050
      5 Items

      Specific References

      Click on your bike to see all compatible parts.

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      ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009
      ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009
      ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009
      ATHENA Racing Forged Piston ref. S4F102000050 for KTM LC4 620, LC4 640, SXC 625 1994-2009
      €243.90
      Tax Included