This is for one used John Deere OEM part # AA81649  planter row command shut off clutch.  This is the newest version. It subs for part #  AA70580, AA73473 or AA74046.  All have been cleaned and checked and are in excellent condition. They come with a 30 day refund or replacement warranty. Please check your application and feel free to ask questions. Thanks for looking! I will ship quickly!