This listing is for a brand new knock sensor switch plug pigtail suitable for use with Integra, Civic, and Prelude wiring. The product is made by TRC and comes with a manufacturer warranty. It is compatible with various part numbers such as b20, b20b, b16a, itr, gsr, LS, b18b, b18a, d16y8, EF, Eg, Ek, ek9, eg6, ef9, d16a6, d16, d15, d16z6, b18, and b16. This knock sensor switch plug pigtail is perfect for those looking for a reliable and durable air intake and fuel sensor for their car or truck. Get yours now and experience the best quality and performance.