Element wybieraka skrzyni biegów (rurka smarująca), w wałek główny (12 AS 2001 BO, 12 AS 2301, 12 AS 2301 IT, 12 AS 2301 IT ASF, 12 AS 2331 TD, 12 AS 2530 SO, 12 AS 2530 SO W, 12 AS 2530 TO, 12 AS 253