Aftermarket Mazda 6 replacement keys: 24 in-stock listings for model years 2006–2021, including key fobs, from $18.00. Common FCC IDs: KPU41788, WAZSKE13D01, BGBX1T478SKE125-01. 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.