GENUINE AUDI 8 SPEED AUTOMATIC 0BK ZF AUTOMATIC GEARBOX FILTER GASKET. 0BK 398 009 A. SUITABLE FOR ZF 8HP55 8 SPEED AUTOMATIC TRANSMISSION. REGISTRATION NUMBER (UK) OR VIN / CHASSIS NUMBER (INTERNATIONAL). WE ARE HERE TO HELP! Electrical items are not refundable. We keep a record of the serial number and a picture of the item we send to customers.