The Throttle Position Sensor screws on a wide range of BMW engines are prone to rusting and rounding out, resulting in an unslightly appearance and the potential need to cut them off when replacing your TPS. We’ve devised these stainless steel replacements which use a hex key rather than phillips screw. A long lasting alternative with a far better tool fitting. Replaces BMW part number 13541726918. Priced per pair of screws/washers. One pair required per TPS. Use the link above to check how many TPS your vehicle has – for example, the S54 has a sensor on the throttle actuator as well as on the throttle bodies and so two pairs are required.