Dorman - OE Solutions Window Regulator P/N:740-336
Crank the front left door glass up and down on its intended path with part number 740-651, a manual Dorman window regulator supplied as the regulator only. It fits many vehicles, among them the 1987-1991 Chevrolet Blazer, 1989-1991 Chevrolet R1500 Suburban and 1989-1991 Chevrolet R2500 Suburban. See the Buyer's Guide tab for the full list of Chevrolet and GMC applications and engine details.
The regulator is the mechanism inside the door that carries the glass and turns each rotation of the window crank into up-and-down movement. Dorman built this Dorman OE Solutions window regulator to install and work like the original regulator on the listed applications.
Signs the regulator may need replacing include a window that drops into the door, tilts or binds as it moves, grinding or clicking while you crank, or a crank that turns without moving the glass. A worn crank handle or glass channel can cause similar symptoms, so diagnose the cause before you replace the regulator.
Interchange: 1554-6500L · 82-15M · 335-53002-002 · 10-0017
11R254 · 81901 · 8215M · WLR7001 · 14027431 · WR40651 · WMR4668L · 15546500L · 33553002002 · 100017
This part cross-references / interchanges with the following part numbers:
Is this Blazer window regulator right for my 1987-1991 Chevrolet Blazer?
The 740-651 is listed for the 1987-1991 Chevrolet Blazer in the front left position. Check the Buyer's Guide tab to confirm your exact vehicle.
Does it fit a Chevrolet Suburban?
It is listed for the 1989-1991 Chevrolet R1500 Suburban and the 1989-1991 Chevrolet R2500 Suburban, along with many other Chevrolet and GMC models. See the Buyer's Guide tab for the full list.
Which door does this regulator install in?
It is the front left door window regulator. It is a manual unit, so the glass is raised and lowered with the window crank.
What is included with the 740-651?
Dorman supplies it as the regulator only. It is a manual window regulator, so there is no motor.
What are signs a window regulator may be failing?
Common signs are a window that drops, tilts, binds or moves slowly, grinding or clicking while cranking, or a crank that turns without moving the glass. Diagnose the cause before you replace the regulator.
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.