NPAUTO Rear Left Power Window Regulator with Motor for Silverado/Sierra 2007–2013 Extended Cab — Preassembled Direct-Fit

The NPAUTO rear left (driver side) power window regulator with motor replaces your factory unit and restores smooth, quiet rear window operation for 2007–2013 Silverado and Sierra trucks.

If the rear left window in your Chevrolet Silverado or GMC Sierra sticks, drops, or runs slowly, this complete regulator assembly with motor provides a direct-fit replacement built to OE-style specifications. Designed for extended cab pickups from 2007 through 2013, the assembly comes preassembled with motor so you can swap it in without modifying the door or wiring harness. The unit matches original equipment mount locations and connector types for straightforward installation and a reliable fit.

Which vehicles and years does this regulator assembly fit?

This NPAUTO assembly is engineered specifically for extended cab pickup models of Chevy and GMC full-size trucks. It is compatible with multiple trim lines and model years listed by the manufacturer.

• Chevrolet Silverado 1500: 2007–2013 (Extended Cab)
• Chevrolet Silverado 2500HD and 3500: 2007–2013
• GMC Sierra 1500, 2500HD, and 3500: 2007–2013
• Designed for rear left (driver side) door with preinstalled motor and OE-style connector

How does this part compare to the original equipment (OE) unit?

The assembly is produced to meet OE fitment and performance, using the same mounting points and electrical connector layout for a trouble-free replacement. It aims to deliver comparable movement speed and quiet operation without the need for door modifications.

• OE reference numbers: 741-388, 741388, 15901326, 25885884
• Preassembled regulator and motor for direct swap-in
• Constructed to slide smoothly and resist noise similar to factory parts

What should I expect during installation and setup?

Installation is intended to be straightforward for anyone comfortable removing a door panel and disconnecting a window motor electrical plug. Because the unit comes assembled, you avoid separate regulator mounting and motor alignment steps.

• Direct replacement—uses existing door mount points and wiring harness
• No drilling, welding, or custom brackets required
• Typical install includes removing the door panel, swapping the assembly, reconnecting the motor, and testing the window

What warranty and support come with the NPAUTO regulator?

NPAUTO backs this part with a two-year warranty and customer support for fitment questions or post-install issues. If you encounter fit, function, or shipping problems, their support team is available to help troubleshoot or arrange a warranty claim.

• 2-year warranty from NPAUTO covering manufacturing defects
• Customer service contact for fitment or installation assistance
• Return or replacement process available if the part is defective on arrival

Who is this for: The NPAUTO rear left power window regulator with motor is aimed at owners and mechanics repairing extended cab Chevrolet Silverado or GMC Sierra trucks from 2007 to 2013. Choose this assembly if you want a direct-fit, preassembled replacement that restores reliable rear window movement without custom work. It’s suitable for DIYers familiar with door-panel removal and professional shops that prefer a ready-to-install unit with OE-style compatibility and warranty coverage.