The Driven Face assembly is constructed from several parts from which the Face Set,driven is the most expensive.
Parts such as the Driven Face: Washer,12.2x29x2., Brg,ndl 22x29x18, Rubber,clutch Dmp, Nut,special,28mm are included in the Fes125a S-wing 2010 (a) England / Mkh Driven Face parts fiche.
Of all the components that make up this Driven Face the O-ring,38.8x1.9 has the lowest price.