Guide · Fiat

Fiat 500X Key Replacement Guide

Last updated: August 2026 · Verified OEM part numbers

Quick answer: The Fiat 500X (2016-2023) uses the M3N-40821302 434MHz 4A Chip 3 Button (SUV) Smart Key for Fiat 500X (SKU PCK-FA-2002-P) — verified against OEM part numbers. See the full compatibility table below.

Which Fiat 500X key fits your vehicle?

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Compatible keys for Fiat 500X

Years	Key
2016-2023	M3N-40821302 434MHz 4A Chip 3 Button (SUV) Smart Key for Fiat 500X SKU: PCK-FA-2002-P
2016-2019	KYDZ 2ADFTFI5AM433TX 433MHz Megamos MQB 48Chip 3+Light Button Flip Key for Fiat 500X SKU: PCK-JP-2106-P
2016-2019	KYDZ 2ADFTFI5AM433TX 433MHz Megamos MQB 48Chip 3+Panic Button Flip Key for Fiat SKU: PCK-JP-2107-P
2016-2019	KYDZ 2ADFTFI5AM433TX 433MHz Megamos MQB 48Chip 2+Light Button Flip Key for Fiat 500X SKU: PCK-JP-2104-P
2016-2019	KYDZ 2ADFTFI5AM433TX 433MHz Megamos MQB 48Chip 2+Panic Button Flip Key for Fiat 500X SKU: PCK-JP-2105-P
2016-2019	KYDZ 2ADFTFI5AM433TX 433MHz Megamos MQB 48Chip 2Button Flip Key for Fiat 500X SKU: PCK-JP-2103-P
2016-2019	OEM Board 2ADFTFI5AM433TX 433MHz Megamos MQB 48 Chip 3+Panic Button Flip Remote Key for Fiat 500X SKU: PCK-JP-2102-P
2016-2019	OEM Board 2ADFTFI5AM433TX 433MHz Megamos MQB 48 Chip 3+Light Button Flip Remote Key for Fiat 500X SKU: PCK-JP-2101-P
2016-2019	OEM Board 2ADFTFI5AM433TX 433MHz Megamos MQB 48 Chip 2+Panic Button Flip Remote Key for Fiat 500X SKU: PCK-JP-2100-P
2016-2019	OEM Board 2ADFTFI5AM433TX 433MHz Megamos MQB 48 Chip 2+Light Button Flip Remote Key for Fiat 500X SKU: PCK-JP-2099-P
2016-2019	OEM Board 2ADFTFI5AM433TX 433MHz Megamos MQB 48 Chip 2 Button Flip Remote Key for Fiat 500X SKU: PCK-JP-2098-P

Before you order

Match the year range — Fiat changed key systems across model years. Check your registration year.
Check your current key — the OEM number printed on your key matches the table above.
Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

Which key fits my Fiat 500X?

The Fiat 500X (2016-2023) uses the M3N-40821302 434MHz 4A Chip 3 Button (SUV) Smart Key for Fiat 500X (SKU PCK-FA-2002-P). Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Fiat 500X keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Fiat 500X key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Ready to order a Fiat 500X key?