The most reasonably priced component used on the Ew50 2004 1s11 Finland 1c1s1-300f1 Transmission is the Cir-clip (70r).
Parts such as the Transmission: Bearing, Drive Axle Assy., Washer, Conical Spring(3fc), Cir-clip (70r) are included in the Ew50 2004 1s11 Finland 1c1s1-300f1 Transmission parts fiche.