I am in search of a part number that can fit the same M6 bolts spaced at ~44mm as the original 1987 ZL1000's fuel tap, 51023-1387. That exact part number is extremely difficult to find.

Does anyone know which other part numbers might be close to it?

I have already received confirmation that the ZG1000 Concours' 51023-0726 does not share the same dimensions. I have not received confirmation on the KZ1000 Police's 51023-0725 yet.