MotoRad Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities. Precision piezoceramic element ensures accurate response to a wide range of engine vibrations Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability Designed to meet or exceed all OEM specifications in fit, form & function Brand MotoRad Model Ignition Knock (Detonation) Sensor Exterior Machined Item Weight 2.24 ounces Manufacturer MotoRad Item model number 1KS1247 Product Dimensions 6 x 4 x 3 inches Manufacturer Part Number 1KS1247