How to install a new ignition lock cylinder and ensuring compatibility with the key on Mercury Mountaineer?

Replacing only a single ignition lock cylinder with a new one requires changing both the driver door lock and ignition lock cylinder as a pair to prevent needing an unnecessary key that functions on one lock. A new key usage requires stamping the key code number onto a metal tag which becomes attached to the key. Builders should discard malfunctioning lock cylinders and make new ones by using the necessary lock repair packages complete with installation instructions matching current key codes. First, position the ignition switch to ON before using a suitable tool to press the locking pin to free the ignition lock cylinder. When installing the ignition lock cylinder, follow the reverse steps of removal and apply lubrication to the cylinder when finishing the process.

OEM Mercury Mountaineer Ignition Lock Cylinder

Ignition Key Lock Cylinder

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4 Ignition Lock Cylinders found

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Mercury Mountaineer Ignition Lock Cylinder, Front
Part Number: AU5Z-11582-B
$82.65 MSRP: $133.35
You Save: $50.70 (39%)
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Product Specifications
- Other Name: Cylinder - Ignition; Console Lock Cylinder and Key; Ignition Lock Cylinder, Front; Ignition Cylinder; Lock & Cylinder; Lock Cylinder; Cylinder & Keys; Cylinder Ignition
- Position: Front
- Replaces: SW-6845, SW-6606, SW-6149, 5F9Z-11582-BA, 4L3Z-11582-BB, 7U5Z-11582-B, SW-6390
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Ignition Lock Cylinder
Part Number: 1L3Z-11582-A
$53.19 MSRP: $87.53
You Save: $34.34 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Lock Assembly - Steering And Ignition; Trunk Lock Cylinder; Door Lock Cylinder; Ignition Cylinder; Lock & Cylinder; Lock Cylinder; Switch Assembly; Cylinder & Keys; Warning Switch
- Replaces: 1L3Z-11582-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Ignition Lock Cylinder
Part Number: 2L2Z-11582-B
$55.25 MSRP: $90.91
You Save: $35.66 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cylinder - Private Lock; Key Blank; Ignition Cylinder; Lock Cylinder; Ignition Lock; Cylinder & Keys; Lock Cylinder Assy
- Manufacturer Note: Lock Service Pack - Ignition
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Ignition Lock Cylinder
Part Number: F87Z-7822050-AA
Product Specifications
- Other Name: Lock Cylinder With Keys; Trunk Lock Actuator Motor; Lock Actuator
- Manufacturer Note: IGN, F/D, L/G, w/o anti theft, w/o central locking system
- Replaced by: F87Z-7843432-CB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS

Mercury Mountaineer Ignition Lock Cylinder

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Mercury Mountaineer Ignition Lock Cylinder Parts Questions & Experts Answers

Ignition Lock Cylinder, Front
AU5Z-11582-B
Q: How to install a new ignition lock cylinder and ensuring compatibility with the key on Mercury Mountaineer?
A: Replacing only a single ignition lock cylinder with a new one requires changing both the driver door lock and ignition lock cylinder as a pair to prevent needing an unnecessary key that functions on one lock. A new key usage requires stamping the key code number onto a metal tag which becomes attached to the key. Builders should discard malfunctioning lock cylinders and make new ones by using the necessary lock repair packages complete with installation instructions matching current key codes. First, position the Ignition Switch to ON before using a suitable tool to press the locking pin to free the ignition lock cylinder. When installing the ignition lock cylinder, follow the reverse steps of removal and apply lubrication to the cylinder when finishing the process.