Infiniti Q50 2016-2019 Smart Key 4-Button
4-button · 433 MHz · ID4A · Part S180144206
⭐ This is a new genuine factory Infiniti unit: a 4-button smart key for the Infiniti Q50 2016-2019, Infiniti part number S180144206, transmitting at 433 MHz with a HITAG AES, ID 4A (NCF29A1M) transponder. It is supplied as the key only, without the emergency blade, and is registered over OBD with a diagnostic tool. Infiniti also lists 285E3-4HB0C, a different key (North American 4-button Q50 2016-2020 / Q60 2017-2020 key, Continental board S180144204), so match S180144206 on the original key.
⚙️ Key features
4-button layout
4 buttons as fitted to the Q50 proximity key, with push-button start.
433 MHz with ID4A
433 MHz transmitter paired with a HITAG AES, ID 4A (NCF29A1M) transponder for proximity entry and push-button start.
Not the 285E3-4HB0C key
Built for S180144206 only. 285E3-4HB0C is a different part number and does not interchange.
Part number first
Part number S180144206 is printed on the original key; matching it avoids ordering a look-alike.
💎 Benefits
Every button working
The 4-button layout matches the car, so the customer keeps every remote function.
Fewer wrong orders
Ordering by part number S180144206 avoids returns from look-alike keys.
Factory electronics
A genuine Infiniti unit, so the electronics match the original key exactly.
Customer confidence
A factory key reassures customers who want the same part the car was built with.
👥 Who it's for
Automotive locksmiths
Add-key and all-keys-lost jobs on the Infiniti Q50 with OBD key programmers.
Key shops and counter trade
Stock for walk-in spare key requests on the Q50.
Dealers and garages
Replacement keys for used Q50 stock and service customers.










