Put the crank back in control of your front left door glass with the Dorman window regulator 740-398, a manual regulator designed to move the window up and down as you turn the handle. It fits many vehicles, among them the 2005-2010 Chevrolet Cobalt, 2007-2010 Pontiac G5 and 2006 Pontiac G4, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list.
This Dorman OE Solutions window regulator is a manual unit sold as the regulator only, with no motor.
- Trustworthy replacement: engineered and tested to fit, function and perform like the original window regulator on the listed applications.
- Quality assured: cycled thousands of times in an actual vehicle door during testing.
- Reliable design: engineered in the USA and supported by Dorman's long history in the automotive aftermarket.
- Easy installation: reverse-engineered to the original equipment shape and dimensions for a direct, seamless fit.
Signs a window regulator may need replacing include glass that drops, tilts or binds in its track, grinding or clicking inside the door while cranking, or a crank that turns without moving the window. Diagnose the cause first. If a worn front left regulator is the cause, this part replaces it.
Interchange: 10-0009
100009 · 81122 · WLR9074 · 15274103 · 15817876 · 20795493 · 22701097 · 25852204 · WMR4642L
This part cross-references / interchanges with the following part numbers:
81122, WLR9074, 15274103, 15817876, 20795493, 22701097, 25852204, 10-0009, WMR4642L
Frequently Asked Questions
Is this the right Chevy Cobalt window regulator for my 2005-2010 Cobalt?
Dorman 740-398 is listed for the front left door of the 2005-2010 Chevrolet Cobalt. The "Vehicles it fits" section has the full fitment chart.
Does the 740-398 also fit the 2007-2010 Pontiac G5 or the 2006 Pontiac G4?
Yes. It is listed for the front left door of the 2007-2010 Pontiac G5 and the 2006 Pontiac G4.
Does this window regulator include a motor?
No. It is a manual window regulator sold as the regulator only. It is moved by the door's window crank, not a motor.
What are signs a window regulator may need replacing?
Signs include glass that drops, tilts or binds, and grinding or clicking inside the door while cranking. A crank that turns without moving the window is another sign. Diagnose the cause before replacing.
How was this regulator tested?
Dorman cycled it thousands of times in an actual vehicle door. It is also reverse-engineered to the original equipment shape and dimensions for a direct fit.
