without anti-theft key
with transponder key
wo/Programming Dongle
with keys
Lock Cylinder Kit w/Tumblers and Springs Only
Original key required for programming w/Programming Dongle
Original key required for programming w/Programming Dongle
Browse our selection of quality ignition lock cylinder parts designed specifically for your Mercury Mountaineer. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · Convenience · Luxury · Premier
Sport Utility
V6 4.0L · V8 4.6L · V8 5.0L
Automatic