I think you will find the Crosslee 421309234011 is the same part. In stock @ Qualtex for £7.40 😀
(Not 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} on that but check out the photo’s of it and the Bosch photo and they look identical.)