Dorman 749-280 front left window regulator for the 2003-2021 Chevrolet Express 2500 and other vehicles lifts and lowers the door glass in a manual window. It is the regulator only, with no motor.
- Part of the Dorman OE Solutions window regulator line
- Metal frame, gear, cable and housing
- 44-tooth gear with a maximum lift height of 450 mm
- Cycled thousands of times in an actual vehicle door during testing for a long, trouble-free service life
Quick facts
- Part: Dorman 749-280 window regulator
- Fits: 2003-2021 Chevrolet Express 2500 and other vehicles
- Position: Front Left
- Material: Metal
- Condition: New
A manual window that turns hard, slips down or grinds as it moves can mean a worn or broken regulator. Before replacing it, look along the glass channel with the engine off for debris or a bent track, because a blockage there can make the window bind just as a worn regulator does. If the regulator is the cause, this one replaces it.
Fits
The 2003-2021 Chevrolet Express 2500, the 2003-2021 Chevrolet Express 3500 and the 2009-2021 Chevrolet Express 4500 take this window regulator, along with other Chevrolet and GMC models. Open the "Vehicles it fits" section and look up your exact model and engine. It is engineered and tested to work like the original regulator on these vehicles.
Specifications
Fit and size
- Position: Front Left
- Quantity per vehicle: 1
- Maximum width: 700 mm
- Maximum lift height: 450 mm
- Gear tooth quantity: 44
- Attachment type: Bolt On
Build and materials
- Type: manual window regulator, regulator only
- Frame, gear, cable and housing material: Metal
- Motor: not included
- Condition: New
- Country of origin: China
In the box
One manual window regulator for the front left; this side takes one, and the front right is ordered separately. Mounting hardware and installation instructions are not included, so plan on new fasteners, since the old ones may not be reusable.
Installation notes
- Bolt-on attachment.
- Reverse-engineered to the original shape and dimensions, so it installs easily.
Interchange: 15145645 · 15221953 · 15264621 · 15839866 · 20953426 · 22799127 · 22871029 · 23109000 · 23125668 · 23348407 · 23365905 · 25744158 · 25746832 · 25748925 · 25753705 · 25889755 · 25945676 · 84120629 · 84176791 · 84213734 · 84244705 · 84638348
This part cross-references / interchanges with the following part numbers:
15145645, 15221953, 15264621, 15839866, 20953426, 22799127, 22871029, 23109000, 23125668, 23348407, 23365905, 25744158, 25746832, 25748925, 25753705, 25889755, 25945676, 84120629, 84176791, 84213734, 84244705, 84638348
Frequently Asked Questions
Is the Dorman 749-280 window regulator right for the 2003-2021 Chevrolet Express 2500?
Yes. Dorman 749-280 is the front left regulator for the 2003-2021 Chevrolet Express 2500. Open the "Vehicles it fits" section to look up your exact model and engine.
Does this front left window regulator come with a motor?
No. Dorman 749-280 is the manual regulator only, with no motor. Mounting hardware and installation instructions are not included either.
What is the lift height of this manual window regulator?
The maximum lift height is 450 mm and the maximum width is 700 mm. The gear has 44 teeth, and the frame, gear and cable are metal.
How can I tell a manual window regulator is going bad?
Common signs are a window that turns hard, slips down on its own, or grinds or clicks as it moves. A shop can inspect inside the door to find which part is at fault.
Does Dorman 749-280 replace part number 23125668?
Yes. 23125668 is on the interchange list for Dorman 749-280, which is the front left manual window regulator.
