Welcome to Proper Parts

We design, prototype, manufacture, and remanufacture high quality aftermarket auto parts for vintage Rolls-Royce, Bentley, Range Rover, and General Motors vehicles. We sell Power Seat & Mirror ECU Control Modules, Power Seat Transmissions and Motors, and many parts associated with these systems. If you can't find the obsolete part that you need, feel free to ask. We aim to build "Better Than New."