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Lincoln 8E5Z-5421991-B Ignition Lock Cylinder

2006-2019 Lincoln 8E5Z5421991B

Customer Questions & Expert Answers (3)
8E5Z-5421991-B Ford Ignition Lock Cylinder Product Photo 1 of 3
  • Part Description
    Cylinder Assembly - Lock
  • Base No.
    21991
  • Position
    Driver Side
  • Replaces
    6E5Z-5421991-B, 5L8Z-7821991-AA
  • Manufacturer
    Ford
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Lincoln
    Base No.21991
    Manufacturer Part Number8E5Z-5421991-B, 8E5Z5421991B
    Part DescriptionIgnition Lock Cylinder; Cylinder Assembly - Lock
    Item Dimensions9.3 x 7.1 x 1.1 inches
    Item Weight0.60 Pounds
    PositionDriver Side
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces6E5Z-5421991-B, 5L8Z-7821991-AA
    ManufacturerFord
    SKU8E5Z-5421991-B
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2009-2016 Lincoln MKS6 Cyl 3.5L DOHC T/C, 6 Cyl 3.7L DOHC, 6 Cyl 3.7L PFI NA6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    2010-2019 Lincoln MKT4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 3.5L DOHC T/C, 6 Cyl 3.7L DOHC, 6 Cyl 3.7L PFI NA6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    2007-2015 Lincoln MKX4 Cyl 2.0L EcoBoost (240PS), 6 Cyl 3.5L DOHC VCT SMPI, 6 Cyl 3.7L DOHC6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    2007-2012 Lincoln MKZ4 Cyl 2.3L, 4 Cyl 2.5L Duratec HE PFI, 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI, 6 Cyl 3.0L OHC Duratec, 6 Cyl 3.5L DOHC VCT SMPI5-Speed Automatic Transmission Mazda FNR5, 5-Speed Manual Transmission (G5M), 6-Speed Automatic Transaxle - AWF21, 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Manual Transmission Mazda G6M, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    2006 Lincoln Zephyr4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI5-Speed Automatic Transmission Mazda FNR5, 5-Speed Manual Transmission (G5M), 6-Speed Automatic Transaxle - AWF21, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
  • Customer Questions & Expert Answers

    Q:
    I am wondering if this is the exact part that fits in.
    A:
    You can Select Your Vehicle to check if 8E5Z-5421991-B fits your vehicle.
    Posted and answered by Ford Parts Specialist Tim
    Q:
    How to replace the Door Handle, Door Latch and Door Lock Cylinder on the Ford Taurus? Posted by Loreal R.
    A:
    To replace the outside door handle lever the following are the procedures, Removing the trim cap for the outside handle retaining screw and turning the screw counterclockwise until it loosens but does not come out. Secondly, remove the cover of the outside handle and sliding it to the rear, pulling the handle off the handle reinforcement apparatus fit in the door. Slider-check and, if necessary, replace the outer door handle seals as these may be cracked or in very poor condition. For the inside door handle, you have to pull off the trim panel, then you pop out the handle from the door panel, line up the actuator cable along the slot in the handle lever, then you pull the end plug of the cable out before you pry out the actuator bushing. Installation process is the exact opposite to this process. To gain access to the door latch and outside door handle reinforcement the outside door handle lever, door trim-panel, upper and lower actuating rod as well as the keyless entry pad harness if installed must be removed. Disengage the reinforcement mounting fastener, and rotate the assembly inward to be extracted from the interior of the door, then disengage the latch mounting fasteners and extract the latch, as well as the outside door handle reinforcement as a single piece while disconnecting the electrical connection. Door lock cylinder refer to the fact that it cannot be replaced by a new cylinder, the old cylinder has to be chucked and a new unit has to be made from a lock repair package to be obtained from the dealer. To dismantle the lock cylinder further, one has to pull a ring by which it will be possible to extract it from the handle outside door; in assembling, one has to remember that the D-shaped opening in the new lock cylinder, which has to be put in place of the old one, must fit in the D-shaped opening in the lock cylinder lever. Finally, to take out the keyless entry pad the upper trim cap has to be removed then, using a screwdriver the clip that holds the key pad on the reinforcement handle can be released and thus the key pad pulled out and the electrical connector disconnected and the real reverse order is the process of installation.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Bastien / Jul 03, 2023
    Q:
    Does this come with a key? Or will I need a new one made? Or will I just be able to use the one that works with my other door? Posted by Charles O. / 2014 Ford Explorer
    A:
    8E5Z-5421991-B it is a kit that is for rebuilding the cylinder lock. a locksmith is needed to put the tumblers in the right order for the customer key to fit.
    Answered by Ford Parts Specialist Joseph / Mar 23, 2023

Genuine Ford Part 8E5Z-5421991-B, the Right Choice

To ensure reliability, purchase part # 8E5Z-5421991-B Ignition Lock Cylinder. It is also called Door Lock Cylinder. OEM parts are of high quality and known for their longevity. This is because they are built to the Ford standards which are relatively high and undergo rigorous quality control testing. This part fits specific Lincoln MKS, MKX, Zephyr models.

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