yeah, I think I'd ring anyone you're thinking of purchasing from first to double check as I find 2 part numbers for the tank. I suspect it is the one posted above and the one you found but best checking. The 2 part codes are in the following link which also says different manufacturing dates for the Puma but lists the same model years overall (if that makes sense)
https://ford.7zap.com/en/car/57/no/22/1558/15537/67755/#9002