Brake wheel cylinder BWB107, WC0046 (Balco) 15.87mm diameter

Listed as fitting:

Opel Ascona A 1.6 (exc.S) (to Ch.2453080) Rear fitting 1971-75

Opel Ascona A 1.6S, 1.9 All models (to.Ch.2761436) Rear fitting 1971-75

Opel Kadett B All models, (disc/drum) rear, 1967-73 

Opel Manta A 1.6S, 1.9 All models  Rear fitting, 1970-75

Please make sure this is the correct part for your vehicle