Fiat cam belt change question?

Think of it this way... Fiat don't make cam belts, tensioners or waterpumps, any more than they make tyres, sparkplugs or windscreens... they merely spec them, and then assemble them into their vehicles along with all the other parts delivered to their factories assembly sheds by other parties in order to make the finished item.
The aim in essence is to discover who made the parts for Fiat, and buy them in their own box rather than pay the mark-up involved for it coming in a Fiat Box, or at least to find an OE Quality supplier if not the exact OE Quality supplier in the case of a kit with parts from more than specialist supplier (eg belt, plus tensioner, plus waterpump, so there may be three specialist manufacturers putting parts into that box).
I think Gates manufacture for Fiat, but Continental, Dayco, Schaeffler (INA), SKF are all OE Quality manufacturers.

I wont use Gates anymore, quality isnt what it used to be so id stick to the others listed above.