Front Left Window Regulator for 1997-2005 Buick Century & More - Dorman 740-637

Guide your front left door glass up and down its track with the Dorman window regulator 740-637, 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. If a worn or broken regulator is why your window is misbehaving, this unit replaces it at the front left door. See the Buyer's Guide tab for complete vehicle details.

• Regulator only: This is the power window regulator mechanism alone. The window motor is not included.
• Engineered to the original: Dorman designed and tested this regulator to deliver the same fit, function and performance as the stock unit on the listed vehicles.
• Cycle-tested: Dorman tests it extensively by cycling it thousands of times inside an actual vehicle door.
• Direct fit: It is reverse-engineered from the original equipment's shape and dimensions for a direct, seamless installation.
• Reliable design: Engineered in the USA and backed by Dorman's long history in the automotive aftermarket.

Signs a window regulator may need replacing include glass that drops into the door, moves slowly or crooked, binds partway through its travel, or makes grinding or clicking noises as it moves. A failing motor or switch can cause similar symptoms, so diagnose the cause before you replace any parts.

Interchange: 20-0085
200085 · 11R21 · 81220 · RPGM067 · 82186a · WLR2014 · 10334397 · 10434882 · 19245391 · RBB462902 · SK740637