This is a replacement o-ring for your N54/N55/S55 BMW. If your BMW has a N54, N55 or S55, this will replace your existing/worn throttle body o-ring that sits inside the chargepipe.
OEM BMW Part Number: 13717568031
Note: This item is offered with FREE SHIPPING!
Fits all BMW's with an N54, N55 & S55 engines.