For a CWA200 conversion, record the complete Pierburg number and check the pump's hose connections before choosing a replacement. The earlier wake-up discussion here is a separate issue: it concerns how an existing pump is controlled by a particular ECU. A pump catalogue reference cannot establish that control arrangement or resolve possible back-feeding.
CarParts247, which I help with, lists Pierburg 7.02851.20.0 (https://carparts247.co.uk/pierburg-14796.html), identified in Motorservice's CWA200 information. The page gives 12 V and two 40 mm hose diameters. It supplies the pump, not a complete British-car conversion kit; confirm the exact pump label, connector and manufacturer-supported control requirements before deciding whether it belongs in the installation.