Rear Left Driver Side Power Window Regulator with Motor

Our review of this Rear Left Driver Side Power Window Regulator with Motor finds it best for owners of early 2000s GM full-size trucks and SUVs who need an affordable, direct-replacement assembly. The bottom line: the unit offers a straightforward plug-and-play swap and a tested motor mechanism, making it a practical repair option for Cadillac Escalade, Chevrolet Avalanche/Silverado/Suburban, and GMC Sierra/Yukon XL models where the original regulator has failed. Installers who prefer minimal wiring or a quick door-panel job will appreciate the simplicity and value this replacement provides.

Key Features

• Location: Designed specifically for the rear left driver side position to match factory fit and mounting points for compatible GM models.
• Included motor: Ships with the motor pre-attached so the full assembly is ready for a plug-and-play installation with no wire splicing.
• Tested durability: Regulators and motors are cycled thousands of times in a vehicle door during testing to help ensure a longer service life out of the box.
• OEM cross-reference: Matches common GM part numbers used on these models for easier parts identification and correct fitment.
• Warranty: Backed by a 1 year warranty, giving added protection against early failures after installation.

Who It's For

This assembly is aimed at DIY mechanics and independent repair shops working on 2000-2006 Chevrolet Silverado, Avalanche, Suburban, Cadillac Escalade (2002-2006), and GMC Sierra/Yukon XL where the rear left window no longer operates. It suits buyers who want a direct-fit replacement that reduces time spent on wiring and adaptation.

It is less appropriate for owners of much newer or non-GM vehicles, or for anyone requiring a long-term OEM lifetime guarantee; some users report mixed long-term durability, so those seeking the absolute longest-lasting factory part might consider alternative OEM sources.

Pros & Cons

Pros

• Complete motor and regulator assembly simplifies installation and reduces labor time compared with separate parts.
• Generally fits the intended GM models well, with several users noting a precise fit on 2000-era Yukon XL and Silverado doors.
• Good value for money compared with dealer-priced replacements, especially for budget repairs.

Cons

• Durability is mixed in customer reports, with a portion of users experiencing failures within a few years.

Specifications

Location	Rear left driver side
Includes	Regulator with motor assembly
Compatible models	Cadillac Escalade, Chevrolet Avalanche/Silverado/Suburban, GMC Sierra/Yukon XL
Reference part numbers	15077722, 15135970, 741-578, GM1550114
Installation	Plug and play, no wire splicing
Warranty	1 year

Our Verdict

This rear left power window regulator and motor assembly is a practical, cost-conscious repair choice for owners of compatible early 2000s GM trucks and SUVs. It delivers simple plug-and-play installation and solid initial performance, making it a good value for drivers who need a quick, correct-fitting replacement; buyers seeking the longest possible lifespan should weigh the mixed durability reports against the lower price and warranty.

Frequently Asked Questions

Will this fit my 2003 Chevy Silverado rear left door?
Yes, the assembly is designed to fit Silverado models in the stated years when the rear left driver side regulator is required.

Does the motor come installed or separate?
The motor is included and pre-attached to the regulator, which enables a plug-and-play installation without splicing wires.

What warranty covers this part?
The product includes a 1 year warranty against defects from the date of purchase.