This is an authentic part that is supplied directly by the original equipment manufacturer for Craftsman generators. The switch shuts down the engine when oil pressure drops too low to prevent engine damage. This part is made of metal durable plastic and wire. This kit consists of the switch, lead wire, and two screws to attach it to the ...Read moreunit. For installation, you will need a screwdriver a socket wrench and a ratchet wrench to aid you.