The O-ring (6g8) is the most widely applied product in the T9.9ELRB/ELHB/EXHB 2003 REPAIR KIT 1 ( three times ).
The Repair Kit 1 assembly is constructed from several parts from which the Gasket Kit, Power Unit (nas) is the most expensive.
The lowest price component in this Repair Kit 1 parts-list fiche is the Ybs67-4 Washer, Spring.