High-Quality Detonation Knock Sensor for Mazda 3 BK
Precision-engineered knock sensor designed for Mazda 3 BK models (2003-2009) with 1.4L, 1.6L, 2.0L, or 2.3L engines. Features a durable stainless steel housing and advanced piezoelectric element for accurate engine knock detection. Direct OEM replacement (ZJ0118921 / E1T50371 / ZJ01-18-921) with seamless ECU integration. High-temperature resistant wiring ensures reliable performance under extreme conditions. Globally sourced materials and strict quality control guarantee long-term durability. Ideal for mechanics, auto shops, or DIY enthusiasts seeking affordable OEM-grade parts. Lowest wholesale pricing with bulk discounts available. Ships worldwide with fast logistics.