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Mercury F4DZ-11572-B Ignition Switch Assembly

1990-2004 Mercury F4DZ11572B

Customer Questions & Expert Answers (2)
F4DZ-11572-B Ford Ignition Switch Assembly Product Photo 1 of 4
  • Part Description
    Switch Assy - Ignition
  • Base No.
    11572
  • Manufacturer
    Ford
Make sure this part fits
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Mercury
    Base No.11572
    Manufacturer Part NumberF4DZ-11572-B, F4DZ11572B
    Part DescriptionSwitch Assy - Ignition
    Other NamesIgnition Switch
    Item Dimensions4.1 x 4.3 x 3.3 inches
    Item Weight0.70 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF4DZ-11572-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
    1994-1997 Mercury Cougar6 Cyl 3.8L, 8 Cyl 4.6L4AT, 4AT 4R70W, 4AT AODE
    1996-2004, 1990-1992 Mercury Grand Marquis8 Cyl 4.6L, 8 Cyl 5.0L4AT, 4AT 4R70W, 4AT AOD, 4AT AODE
    2004 Mercury Monterey6 Cyl 3.9L OHV EFI NA, 6 Cyl 4.2L OHV EFI4AT AX4N, Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    1998-2001 Mercury Mountaineer6 Cyl 4.0L, 8 Cyl 5.0L4AT 4R70W, 5AT 5R55E
    1990-2004 Mercury Sable6 Cyl 3.0L, 6 Cyl 3.8L4AT 4F50N, 4AT AX4N, 4AT AX4S, 4AT AXOD, 4AT AXOD-E
    1994-1995 Mercury Villager6 Cyl 3.0L4AT 4F20E
  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if F4DZ-11572-B fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    How to replace the ignition lock cylinder and Ignition Switch on the Ford Excursion? Posted by Nayomi O.
    A:
    As a process of replacement of the ignition switch, the user is advised to pull the cable off the negative terminal of the battery. Next, take out the centre trim panel and the driver's side knee bolster and the next are the steering column covers, and the tilt-column handle if any. Rotate the ignition key to the Run position and disconnect the electrical connector to the ignition switch and then remove the retaining screws. Remove the ignition switch from the actuator pin by pulling out the mentioned part of the switch from the car. Check that the actuator pin slot in the new ignition switch is located in the Run position, insert the new ignition switch on the actuator pin and tighten the retaining screws and using space provided, calibrate the screws for the alignment of the screw holes. That completes the removal of the cruise control but do the reverse in order to finish the installation and test the unit function in the lock, start and accessory positions. For the Ignition Lock Cylinder as well this requires disconnecting the cable from the negative terminal, rotating the key to the run position and driving a 1/8-inch punch into the hole at the bottom of the steering column cover surround the Ignition Lock Cylinder. Pull out on the Ignition Lock Cylinder while depressing the punch to eject it. To remove the cylinder for replacement, push on the pin near the last of the cylinder and turning a quarter counterclockwise from the Stop position to the Run position and the cylinder falls out of the interlocking washer which must be seated firmly. Finally, using the position of the key that is labelled 'Off', re-align it back to this state to enable proper positioning of the retaining pin into the situated locating hole; the same key should now be turned to confirm a proper working lock in all the respective created positions, finally, reinstalling the lock using the reverse procedure highlighted above.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Clayton / May 07, 2026

Genuine Ford Part F4DZ-11572-B, the Right Choice

To ensure reliability, purchase part # F4DZ-11572-B Ignition Switch Assembly. It is also called Ignition Switch. 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 Mercury Cougar, Mountaineer, Sable models.

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