abs wheel sensor
 

anyone know the part number for n/s rear abs sensor 2002 v70

30773742

any good aftermarket ones to get as I priced these up from frf Swansea and with club discount they were over £60

Used one should be fine as long as the wire wasn't stretched upon removing it (it should not be removed by pulling on the wire, rather by pressing up with a flat screw driver from underneath). Breakers should have plenty of these

If you can't acquire a good used one, the OEM is ATE. Fit an ATE sensor and you won't have any issues. Certain other aftermarket sensors tend to fail quickly or not work at all.