Aftermarket Nissan Maxima replacement keys: 25 in-stock listings for model years 2004–2021, including key fobs, smart keys, transponder keys, from $15.90. Common FCC IDs: 2AOKM-NI13, KR5S180144014. Match the FCC ID and part number on your current key, or use our free VIN lookup. Keys are not OEM and most need cutting or programming; eligible items can be returned within 90 days.