• RH (Passenger Side) REAR DOOR
  • Power operation
  • Includes power window motor already assembled to regulator
  • 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!


  • This repair is easier than you may think. You'll find our installation videos helpful. In our experience removing and replacing the door panel is the most involved step in the repair. On most vehicles this only requires removing a few screws and push-in clips.
  • You'll get a great feeling of accomplishment after you complete this repair knowing you saved money, and you didn't have to give up your car for a day at the repair shop. Your passengers and other drivers will be amazed.

Fit guaranteed

  • 1A Auto will refund you with no hassle, if this window regulator does not fit the application stated.
    •  This regulator will install just as your original does. Save time and money.


  • Be confident this part will work right. Every regulator is tested after assembly to make sure all mechanisms are working correctly.
  • It is important that your new regulator works for a long period of time. The design of this regulator is tested to withstand 10,000 cycles. That is enough to raise and lower your window 3 times per day for 9 years.


  • Windows that don't work can be frustrating. They can also hurt your vehicles value. An inoperable window could mean $200-$500 discounted off a dealer trade value or asking price.
  • Some shops and dealers charge more for parts and repairs when they think you don't know what is involved. Now you can get the value you deserve. Knowing what this repair entails can be the difference between the value of doing it yourself, or the pain of a costly repair bill.
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.

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. Please keep your invoice for proof of this warranty.

  1. step : Remove the door panel (1:00)
    • Use a flatblade screwdriver to pry the triangle panel on the inside of the door were the side mirror is.
    • Disconnect the speaker lead.
    • Pry up the door latch bezel.
    • Pry up the reflector.
    • Remove the two screws now exposed with a Phillips screwdriver.
    • Pry the door panel off with a putty knife.
    • Unplug the wiring harness from the switch panel.
  2. step : Remove the window regulator (3:10)
    • Carefully pull back the water shield.
    • Unbolt the clasp securing the window to the window regulator.
    • Tape the window up and out of the way with painters tape.
    • Unplug the window motor lead.
    • Unbolt the window regulator from the door panel.
    • Thread the window regulator out of the door.
  3. step : Install the new window regulator (6:15)
    • Thread the window regulator into the door.
    • Bolt it into place and clip the window to the regulator and tighten the clip screws.
    • Plug in the window motor.
    • Replace the water shield.
  4. step : Reassemble the door panel (10:00)
    • Check out our other videos for more detailed assembly instructions.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

  • Sockets - Metric

  • 10mm Socket

5.0 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Perfect replacement. Working Well !!!!
Order was filled without delay. Part replacement was a perfect match for the OEM Part.
May 8, 2018
2 months ago
R/R Window regulator
I bought this for a 2001 Buick Le Sabre I got for my Grand Daughter. Expected a real cheap Regulator. The one I got looked better built than the Factory one. I was very impressed and found a new parts supplier
April 9, 2018
3 months ago
Good product. The videos are very helpful it's the main reason I buy from 1A auto.
February 8, 2018
4 months ago
buick window regulator
The part works perfectly, and the video really helped me through the removal and replacement... Gotta give ya 5 stars... Thanx
November 8, 2017
8 months ago
window regulators
I have replaced all my window regulators with 1a auto ones best i have found yet! Great prices great product!! Shop with these guys a lot for all my cars& truck.. thanks Brian pierce
October 2, 2017
10 months ago
Excellent part and service
Top notch service and communication makes 1aauto very high up on my list of auto parts suppliers
July 10, 2017
12 months ago
replacement regulator
this regulator was an exact fit replacement no problems with part and replacement was simple with correct tools. Price was lowest I found and free shipping a big plus. This is the second regulator I have purchased as an older model I own also had one go bad .This model car is noted for regulators. The first one was replaced three years ago and is still going strong.
February 16, 2017
1 year ago
Window opener
I'm not a mechanic. I just followed the YouTube installation video. I wont miss the packing tape filling the top 1 inch gap above my window.
February 15, 2017
1 year ago
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Vehicle Fit

  • 2000-2005 Buick LeSabre Rear Power Window Regulator with Motor Passenger Side

This part replaces:

  • OE # 25750518
  • OE # 10387940
  • OE # 15231244
  • Hollander 135-01807R
  • Dorman 741-812
  • Partslink GM1551106
  • TYC 660275
Part #: 1AWRG00186

How-to Video:

(10:52 min)