Welcome to Proper Parts

We design, manufacture, and refurbish high quality aftermarket auto parts for several model years of Rolls-Royce, Bentley, Range Rover, and General Motors vehicles. We sell Power Seat & Mirror ECU Control Modules, Power Seat Transmissions and Power Seat Motors, in addition to many parts associated with these systems. If you can't find the out-of-stock obsolete part that you're looking for, please ask. We may have it in development or know "the guy who does that." We’ve been building “Better Than New” since 2006.