Keep the front left glass traveling up and down on its track with the Dorman window regulator 740-515, a power window regulator that guides and moves the glass whenever the window motor runs. It fits many Chevrolet and GMC trucks and SUVs, among them the 1987-1991 Chevrolet Blazer, 1989-1991 Chevrolet R1500 Suburban and 1989-1991 Chevrolet R2500 Suburban. See the "Vehicles it fits" section for the full list.
This Dorman OE Solutions window regulator is sold as the regulator only, so the power window motor is not part of this listing.
- Engineered to match the original: Dorman precision-engineered and tested this regulator to fit, operate and perform like the stock unit on the listed applications.
- Quality assured: tested by cycling thousands of times in an actual vehicle door.
- Reliable design: engineered in the USA and backed by Dorman's long history in the automotive aftermarket.
- Easy installation: reverse-engineered to the original equipment shape and dimensions for a direct fit.
Signs a window regulator may need replacing include glass that moves slowly or crookedly, glass that drops into the door, a window that will not move while you can hear the motor running, or grinding and clicking from inside the door. A failing motor or switch can produce similar symptoms, so diagnose the cause before replacing parts.
Interchange: 1552-1797L · 82-19A · 20-0162 · 21-0162
15521797L · 8219A · 200162 · 210162 · 11A392 · 11R9 · 81208 · 82236 · WLR9005 · 22030648 · 52166 · 52434
This part cross-references / interchanges with the following part numbers:
11A392, 11R9, 81208, 82236, 1552-1797L, 82-19A, 8219A, WLR9005, 22030648, 52166, 52434, 20-0162, 21-0162
Frequently Asked Questions
What does the Dorman 740-515 window regulator do?
It is the mechanism inside the door that guides and moves the glass up and down when the power window motor runs. This unit is for the front left position.
Will this Blazer window regulator fit my 1987-1991 Chevrolet Blazer?
Yes. The 740-515 is listed for the 1987-1991 Chevrolet Blazer in the front left position. The full list of applications is in the "Vehicles it fits" section.
Does the 740-515 come with the window motor?
No. It is sold as a power window regulator only, so the motor is not part of this listing.
What are signs the window regulator may need replacing?
Signs include glass that moves slowly or crookedly, drops into the door, or will not move while the motor runs, and grinding or clicking from the door. A motor or switch fault can cause similar signs, so diagnose first.
How was this regulator tested and designed?
Dorman tested it by cycling it thousands of times in an actual vehicle door. It was reverse-engineered to the original equipment shape and dimensions for a direct fit.
