Description: A device, power by electricity, pneumatic, or hydraulics, used to rotate/crank a vehicle's engine as to initiate the engine's operation under its own power. Fits Forester, Impreza, WRX Starter Motor AY. Starter Motor You turn the key, hear a loud sharp CLICK, and your engine doesn't crank???sounds like your Subaru may need its Starter replaced. If any of these symptoms sound familiar, contact our service department. Impreza. Forester. w/ turbo. Manual Trans. w/o sti Model.