Lincoln Transponder Key 4D-63-80 Bit 5913437

The Lincoln Transponder Key 4D-63 80-bit (Part No. 5913437) is a genuine OEM-style immobilizer key used in many Ford/Lincoln vehicles.

 Key details

• OEM / Strattec part number: 5913437
• Chip type: 4D-63 (80-bit Texas Crypto)
• Blade type: typically H92 / H84 / H85 series
• Security system: PATS (Passive Anti-Theft System)
  

  Important notes

  • The key must be cut + programmed to the vehicle.
  • 80-bit chips are more secure and often require a locksmith or diagnostic tool.
  • It may replace older 40-bit versions in many cases, but programming compatibility depends on the car.