4D63 OEM & Aftermarket 40bit Ceramic Transponder Chip For Ford And Mazda is listed as an auto-part option. Confirm fitment, part number and compatibility before purchase, especially where vehicle-specific matching is required.
this part is a specialized auto part designed for key security systems in selected Ford and Mazda vehicles. This transponder chip plays a crucial role in vehicle immobilizer systems by communicating with the vehicle’s ignition system to allow engine startup. Without the correct chip, the car will not start, making it essential for key replacements or programming new keys.
The chip is a 40bit ceramic unit that fits into compatible key housings for certain Ford and Mazda models that utilize the 4D63 transponder technology. When sourcing this part, verify the old chip’s identification to ensure compatibility, as fitment depends on the exact transponder type required by the vehicle’s immobilizer system. This listing covers both OEM and aftermarket versions of the chip, allowing for flexible purchase options depending on preference or availability.
Buyers should check the chip code on their existing key or consult their vehicle documentation to confirm if the 4D63 40bit ceramic transponder is the correct replacement. If uncertain, requesting assistance through expert channels or submitting a request for the correct part is advisable to avoid installation issues or immobilizer faults. This part is sold under the SKU BB-291611, categorized under Transponder Chips / Car Key Chip and branded for Mazda vehicles.
Need help matching this item to your vehicle? Use more Transponder Chips / Car Key Chip, Vehicle Parts Finder or Request a Part with your VIN, engine number, part number or clear photos.