System pressure regulator set for early Bosch K-Jetronic fuel distributor . From our own production, yellow galvanized. Included are the regulator screw, adjusting washers, copper sealing ring and a new sealing ring for the control piston. Scope of delivery see pictures (spring and control piston are not included). System pressure regulator Kit for early Bosch K-Jetronic fuel distributors. From in-house production, yellow zinc plated. The set contains the regulator screw, copper washer, adjustment washers and a new gasket for the regulator piston. Delivery as on the pictures (a new spring and regulator piston are not included). For more please visit our shop / Visit our Shop for more.