Is your driver's side window stuck or moving slowly? This Dorman power window regulator is the part you likely need to fix it. This is the regulator assembly only (the mechanism that moves the window up and down), and it does NOT include the motor. It's engineered to be a direct, drop-in replacement for the original part in certain Mazda models (you MUST check compatibility with your specific car's make, model, and year before buying!). Dorman is a trusted name in aftermarket auto parts, and this regulator is built and tested in the USA to match the original's fit and function, ensuring a long service life. Installation is straightforward if you're handy, but having a mechanic do it is always an option. Get your window working smoothly again and save money compared to a dealership repair.