Window Regulator - 1AWRG00252

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How-To & Tools
Product Reviews
Vehicle Fit

Part Details

  • Regulator Option:   with Motor
  • Operation:   Power


  • LH (Driver Side) Rear
  • Power operation
  • Includes the power window motor
  • Direct replacement
  • Built to strict quality control standards

Please Note:

This window regulator is a high quality aftermarket part that meets or exceeds the performance of the original. It has been subjected to extensive testing and quality control standards. That is why we offer this regulator with our superior warranty!

Direct Fit

Direct fit, pre-assembled parts made ready to fit your vehicle and provide easy and trouble-free installation.

Rigorously Tested

Build to strict quality standards

Highest Quality Materials

Made from the highest quality materials for extreme durability and premium performance.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Removing the Door Panel (1:03)
    • Pry up the switch panel with a flat blade screwdriver
    • Remove the Phillips head screws from the window switch harness
    • Pry out on the switch with a flat blade screwdriver
    • Pry off the bezel with a flat blade screwdriver
    • Pry off the two trim covers on the pull handle
    • Remove the two Phillips screws from the pull handle
    • Remove the Phillips screw from behind the switch panel
    • Remove the Phillips screw on the bottom of the door panel
    • Lift the panel up and off
    • Carefully pull off the water shield
  2. step : Removing the Rear Inside Door Handle (3:07)
    • Remove the Phillips screw from the door handle
    • Slide the handle forward and pull it out
    • Remove the door handle rod from the inside door handle
  3. step : Removing the Window Regulator (3:32)
    • Punch out the center of the rivets on the window motor with a hammer and punch
    • Punch out the rivets on the regulator
    • Punch out the rivets on the window
    • Drill out the rivets with a 3/8 bit
    • Remove the two 11mm bolts from the bottom of the regulator
    • Lower the window
    • Pull off the weatherstrip and trim around the window frame
    • Lift the secondary window up and out
    • Push the secondary window down and its weather strip down from the window frame
    • Raise the window by hand
    • Remove the window
    • Remove the two 11mm nuts on the top of the door
    • Disconnect the window motor lead
    • Pull the window regulator out through the door
  4. step : Reinstalling the Regulator (11:25)
    • Insert one of the bolts into the window regulator
    • Push the regulator into the door
    • Hang the regulator by the 11mm bolts in the regulator rail
    • Insert the two bolts into the window track
    • Insert the three bolts to the motor
    • Pry off the old rivets from the window with a flat blade screwdriver
    • Lower the window onto the regulator
    • Insert the two bolts into the bottom of the regulator
    • Lower the secondary window into place
    • Lift the window into place
    • Insert the two bolts that hold the window to the regulator
    • Put the weatherstrip and trim into place
  5. step : Installing the Rear Inside Door Handle (17:08)
    • Insert the door handle rod to the inside door handle
    • Slide the door handle back
    • Tighten the Phillips screw to the door handle
  6. step : Reinstalling the Door Panel (17:23)
    • Put the water shield in place
    • Lift the door panel into place
    • Insert the longer Phillips screw behind the switch panel
    • Insert the longer Phillips screw to the bottom of the door panel
    • Insert the two Phillips screws to the pull handle
    • Push the switch into the switch panel
    • Push the switch panel in place
    • Push in the door handle bezel
    • Push in the trim buttons on the pull handle

Tools needed for replacement:

    Drills, Drill Bits & Related

  • 3/8 Inch Drill Bit
  • Drill

  • Materials, Fluids, and Supplies

  • Coarse Threaded Bolts (to replace rivets)

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

  • Sockets - Metric

  • 11mm Socket

5.00/ 5.0
10 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Window regulator and motor. This part worked great glad we found you.
This part worked great. Had to replace 2 regulators and motors. The Mercury is my daughters. We have done everything to keep it going. Thanks for the price and the excellent part.
July 21, 2017
Perfect fit and price
1Aauto has the best prices even with the exchange to the Canadian dollar. Free delivery to a US post office box not far from my home is great. Your installation videos are so professional there is no comparison to home made ones. I have recommended your dealership to many of my friends.
September 12, 2017
Great company
I have ordered and received many parts from 1aauto every part has been shipped and received very quickly. I always recommend them to others.
November 22, 2017
I am very well pleased.
This window regulator was easy to install after viewing the installation video. The motor was already attached to the slide. 1A-Auto has a no-hassle return policy.
December 28, 2017
Worked as described and desired.
The regulator I ordered was great. I was not disappointed with either the buying process or installation. The videos provided guided me along well. The parts and tools I purchased were of good quality and installed without fail. Thank you 1-A Auto. I will recommend your site to anyone I can.
March 27, 2018
1st time customer
I ordered new power window regulators and was completely satisfied they came as described. Installation was quite easy thanks to the awesome online videos.. I will definitely be ordering parts from here again. Btw I usually don’t write reviews but this one was worth taking to time to do.
August 21, 2018
totally satisfied
website super easy to use. delivery was on time. product contained everything it was supposed to. bolted right in place and works like it should. awesome service and awesome product.
October 17, 2018
Easy necessary repair
I replaced the drivers window regulator last year and recently came back for the rear driver side regulator on my 2005 Mercury Grand Marquis. Both were relatively quick simple repairs. I watched the repair videos a couple times while the parts were on order, so when they arrived I already had the knowledge in my brain necessary to do the job. All the required parts come in the kit, but I also added thread lock on the bolts just for peace of mind. Easier and cheaper doing it myself. Thanks for the repair videos 1AAuto. Excellent videos make this simple.
November 17, 2018
The right part and video helped a lot
Quick delivery and they included the replacement bolts needed after you have to drill out the rivets. Bonus points for that. Online video showed each step and that was very helpful. Took just an hour from start to finish.
November 26, 2018
Window regulator replacement
Surprised how quickly part arrived. Exact fit. 1AAuto video on youtube showed step by step procedure from start to finish. Could not have gone better. I will absolutely use them again.
January 2, 2019
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Year Make Model Description
1992-2011Ford Crown Victoria Ford Crown Victoria Rear Power Window Regulator with Motor Driver Side
1992-2010Mercury Grand Marquis Mercury Grand Marquis Rear Power Window Regulator with Motor Driver Side
2003-2004Mercury Marauder Mercury Marauder Rear Power Window Regulator with Motor Driver Side
Part #: 1AWRG00252

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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How-to Video:

(19:34 min)