A new ignition condenser from Bremi, part number 5026 / 5022, 4A.
Opel GT1900 1.9L 09/1968 - 1970
Opel Kadett 1.9L 09/1967 - 1971
The connector to the ignition coil may need to be replaced depending on which coil you have. (Round/flat pin connector)
The hole may possibly need to be adjusted