Fiats are famous for mid-cycle updates that aren’t always tied to the calendar year. A 2016 Fiat 500 built in Poland might share parts with a 2014 model, while a different 2016 built for the US market has entirely different electronics. The VIN cuts through this confusion.
For the Fiat 124 Spider (which is basically a Mazda ND Miata with a Fiat engine), standard Fiat sites may fail you. Try EuroCompulsion or MoparOnlineParts. fiat parts by vin number
The internet is full of "universal fit" parts for Fiats. Do not buy them. The Italian engineering in your 500X or 124 Spider is precise. If you install a generic thermostat, you will chase cooling codes for months. Fiats are famous for mid-cycle updates that aren’t
Don’t trust “universal fit” listings on Amazon or eBay. Even if the photo looks right, Fiats often have multiple variants of the same part depending on production month, transmission code, or even the plant (Tychy vs. Mirafiori). For the Fiat 124 Spider (which is basically