Is the power window on your Lexus ES300 acting up? This Dorman replacement regulator should get it working smoothly again. It's specifically made for the rear driver side window on 1997-2001 Lexus ES300 models. Dorman engineers these parts to match the original equipment in fit, function, and performance. They even cycle-test them thousands of times in real doors to make sure they're durable and reliable. Installation is designed to be straightforward—it should bolt right into place using the existing mounting points. As always, double-check your specific year and trim using the garage tool to ensure a perfect fit before ordering. A solid, trustworthy part that can save you a lot compared to dealership prices. Get that window rolling up and down like new!