Keep oil off your truck! This canister mounts on the oil pan rail and catches the oil that is sprayed out of your road breather tube that comes from the crankcase. It eliminates the oil film and drips that are caused by the normal breathing of your engine. The unit is 12" long x 4" diameter and has a drain on the bottom. 5lbs. Mounting hardware included. Oil trap is univeral fit for most engines. Please note mounting brackets may require modification.