Bosch Engine Knock Sensors are highly accurate and sensitive, for superb engine knock detection to prevent potential damaging engine detonation (knocking/pinging) from going undetected and causing severe engine damage. The knock sensor delivers instantaneous information to the vehicle's computer so the engine managment system can make adjustments to eliminate damaging engine knock. Bosch Original Equipment Engine Knock Sensors aren't just a a quality replacement component, they're the same sensor your vehicle was equipped with when manufactured - minus the expense of brand name packaging. Robust design features a linear signal over a large frequency range, improved efficiency and prolonged engine life, and a wide temperature range that withstands extreme hot and cold operating conditions. Bosch Engine Knock Sensors deliver the precision operation and long service life your vehicle needs for maximum performance while preserving engine longevity.