Get the driver's front glass moving smoothly again with the Dorman window regulator and motor assembly (P/N 741-146), a direct-fit replacement for the front left door of the 2006-2011 Buick Lucerne. This single unit combines the regulator that raises and lowers the glass with the electric motor that drives it, so a slow, stuck, or dead power window on the front left door can be addressed in one install.
If a worn regulator or a failed front left window motor is the cause of your slow or non-working glass, this Dorman power window motor and regulator assembly replaces both together. Confirm fitment for your vehicle in the Buyer's Guide tab.
Interchange: 21-0101
210101 · 11A511 · 11R859 · 384128 · 82272 · RPAGM139 · WLR2082 · 10393889 · 15292120 · 15929732
This part cross-references / interchanges with the following part numbers:
What vehicle does this Dorman window motor fit?
It is a front left (driver front) window regulator and motor assembly for the 2006-2011 Buick Lucerne. Check the Buyer's Guide tab to confirm it matches your specific vehicle.
Does this include both the regulator and the motor?
Yes. This is a combined assembly with the regulator that moves the glass and the electric motor that drives it, so both are replaced together in one install.
Which door position is this Dorman window motor and regulator assembly for?
The front left (driver front) door. Order the correct side and position for your Buick Lucerne.
What are signs this power window assembly may need replacing?
Common signs include glass that moves slowly, stops partway, will not move, or grinding/clicking noises. Diagnose the cause before ordering, as switches or wiring can produce similar symptoms.
Is this Dorman power window motor a direct replacement?
Yes, it is engineered as a direct-fit replacement for the original front left assembly on the listed applications, intended to restore factory power-window operation.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
