Flywheel Side Crank Seal 15x22x4 | TS410, TS420, TS440

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Stihl made a change to the flywheel side of their latest generation of crankcases, causing a change in the crank seal size, which is now 15x22x4. This is the replacement crank seal needed to fit the latest generation crankcase.

SERVICE NOTE: Only fits the latest generation crankcases. Seal size is 15x22x4.

  • Stihl 9640-003-1560
  • Size: 15mm ID, 22mm OD, 4mm Height
  • Fits flywheel side
  • Only fits the latest generation of Stihl crankcases
  • Factory genuine Stihl part