Raise and lower the front right door glass with this Dorman window regulator, part number 740-638. It is a power window regulator built as a direct-fit replacement for the 1997-2005 Buick Century, 1997-2004 Buick Regal and 1998-2002 Oldsmobile Intrigue, and it installs in the front right door position.
The regulator is the mechanism inside the door that raises and lowers the glass when the window motor drives it. This unit is sold as the regulator only; the power window motor is not included. If a worn or broken regulator is the reason your window acts up, this 1997-2005 Buick Century window regulator replaces the failed mechanism.
- Built to match the original: Dorman engineered and tested this regulator to replicate the original regulator's fit, function and performance on the listed vehicles.
- Cycle-tested: Dorman tests it by cycling it thousands of times in an actual vehicle door.
- Engineered in the USA: It is engineered in the USA and backed by Dorman's long history in the automotive aftermarket.
- Straightforward installation: Reverse-engineered to follow the original equipment shape and dimensions for a direct fit.
Signs a regulator may need replacing include glass that moves slowly or crooked, glass that drops into the door, a window that won't move while the motor can be heard running, and grinding or clicking from inside the door. A faulty window motor or switch can cause similar symptoms, so diagnose the cause before replacing parts. See the "Vehicles it fits" section for complete fitment details.
Interchange: 20-0086
11R22 · 81221 · RPGM068 · 82187a · WLR2013 · 10334396 · RBB462901 · SK740638 · 200086
This part cross-references / interchanges with the following part numbers:
11R22, 81221, RPGM068, 82187a, WLR2013, 10334396, RBB462901, SK740638, 20-0086
Frequently Asked Questions
Will this work as a 2001 Buick Century window regulator?
Yes. It is listed for the front right door of the 1997-2005 Buick Century. Check the "Vehicles it fits" section to confirm your exact vehicle.
Is this the right 1997-2004 Buick Regal window regulator for my car?
It is listed for the front right door of the 1997-2004 Buick Regal and the 1998-2002 Oldsmobile Intrigue. Check the "Vehicles it fits" section to confirm your vehicle.
Does the 740-638 include the power window motor?
No. This is the regulator only, and the power window motor is not included. Transfer your existing motor if it works properly, or replace the motor separately.
Which door does this regulator go in?
This regulator is cataloged for the front right position. It raises and lowers the glass in that door when the window motor drives it.
How is this regulator tested?
Dorman tests it by cycling it thousands of times in an actual vehicle door. It is also engineered to match the original regulator's fit, function and performance on the listed vehicles.
