| I have been thru this minefield, my ST4 has original non fango panniers, i bought the top box rack & top plate from Riders in Bristol, then found out Non fango had gone pop. Spent ages looking for a matching box only Riders at Bridgwater said they could get one so i ordered it, when I received it, it was wrong although it was not obvious it was a Givi (found out later) I was told that the Givi would not fit with the Non fango Pannier complete hogwash !!
Not only does it fit you cant tell that the panniers and top box are from different factories.
Too busy to check allpart no.s now but if you need them I usually keep everything so could dig them out later,PM me if you would like them. | 
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