Features 1.100% Brand New Aftermarket Knock Sensor with premium quality. 2.Adopted high quality hose material, more lightweight, durable in use. 3.Professional manufacturing, high accuracy and durable.​ 4.Reference OEM: ZJ01-18-921. 5.Fit for Mazda​ 3 BK 1.4 1.6 2.0 2.3 03-09​. Specification Features: 100% Brand New Aftermarket Knock Sensor with Premium Quality. Adopted high quality hose material, more lightweight, durable in use. Professional manufacturing, high accuracy and durable. Reference OEM: ZJ01-18-921. A direct replacement for the old one or broken one. Easy to install, perfect match to your original car. Fit for Mazda 3 BK 1.4 1.6 2.0 2.3 03-09. Specification: Condition: 100% Brand New Material: Hose Color: Shown as picture OEM: ZJ01-18-921 Total Length: 46.5cm / 18.3in Package Weight: Approx. 78g / 2.8oz Fitment: for Mazda 3 BK 1.4 2003/10-2009/06 1349 ccm, 62 KW, 84 PS 3 BK 1.6 2003/10-2009/06 1598 ccm, 77 KW, 105 PS 3 BK 2.0 2003/10-2009/06 1999 ccm, 110 KW, 150 PS 3 BK 2.0 MZR-CD 2006/12-2009/06 1998 ccm, 105 KW, 143 PS 3 BK 2.3 MPS 2006/12-2009/06 2261 ccm, 191 KW, 260 PS 3 Stufenheck BK 2.0 MZR-CD 2006/12-2009/06 1998 ccm, 105 KW, 143 PS Package Included: 1 * Knock Sensor Note: This is aftermarket replacement item but not genuine. Package List