Rear washer failure

[UKenGB]

Yup, it's the motor:-( But what motor? Yes it's the one on the LHS as you look from the front and it's the same as the one on the RHS (for the front washer), but when I go looking for a replacement, what other models use the same pump?

In fact if anyone has the part number handy, that would save me having to search for it, but in many cases parts are advertised for a particular model, so it would be useful to know what other models use the same part.

Also, someone on here mentioned getting a new pump for less than $20, no doubt in the US, but anyone know a good source here in the UK?