Brake Wheel Cylinder BWB118, equiv to WC0099 (balco) 15.87mm diameter

Listed as fitting:

Opel Ascona A (esc.S) (Ch.2453081 on) Rear fitting 

Opel Ascona B 1.6 (exc.S) Rear fitting 1975-81

Opel Manta A 1.6 All models (Exc.S) (Ch.2761437 on ) 1970-75 Rear fitting

Vauxhall Cavalier 1.3 all models 1977-81 rear fitting.

Please make sure this is the correct part for your vehicle.