Upgrade your Mercedes-Benz 300D or 400SE's functionality with the Cardone 823401A LH Rear Power Window Regulator. This reliable replacement part, designed specifically for the rear left side of your vehicle, ensures smooth operation of your electric windows. Crafted from a combination of durable plastic and galvanized steel, it offers both resilience and longevity. The regulator is not a universal fit but a precise match for select Mercedes-Benz models, ensuring a seamless integration with the original design. Cardone is known for its commitment to quality and functionality, and this window regulator is no exception. It comes with essential markings, such as the OE/OEM part number 1407301146 and the interchange part number 740576, to facilitate a hassle-free installation process. Exact item is shown. New open box, may include partial packaging. Item weight 3.1 lbs. Made in Taiwan. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties.