Knock Sensor

Knock Sensor


Standard Motor Products, Inc. supplies knock sensors to the aftermarket for the engine management of cars, trucks, buses, and tractors. They provide knock sensors for all makes and models of new and older automobiles, both imported and domestic. Late model vehicles are highly computer controlled to reduce emissions, maximize fuel economy and improve consumer comfort. The various control systems in vehicles are interrelated and controlled by multiple computers that constantly monitor vehicle performance through a myriad of sensors located throughout the vehicle, such as the knock sensor. Based on information received, the computers adjust the vehicle performance through a series of valves, switches and motors. Each Knock Sensor meets Original Equipment (OE) standards for quality and durability. The Knock Sensors are manufactured in the industry's most advanced production facilities and tested extensively before they are approved for installation in your vehicle.



Each Knock Sensor goes through the following testing:

  • Life testing (full electrical performance testing)

  • Vibration testing

  • Environmental testing (hot and cold cycling)

  • Salt spray

  • Drop testing

  • Metrology lab




The Knock Sensor is designed to sense when fuel is burning unevenly and causing "knocking" or irregular vibrations in the engine. The knock sensor consists of an electric coil that is wound around two ceramic rods with a magnet in the center. Engine vibration makes the ceramic rods vibrate. This disturbs the coils magnetic field and alters the current passing through the coil. This disturbance returns to the computer as a signal pattern that the computer analyzes. The computer then determines whether the vibrations are characteristic of engine knocking.



knock sensor applications:                                                                   

  •  Acura Knock Sensor

  • Audi Knock Sensor

  • BMW Knock Sensor

  • Buick Knock Sensor

  • Cadillac Knock Sensor

  • Chevrolet Knock Sensor

  • Chrysler Knock Sensor

  • Daewoo Knock Sensor

  • Dodge Knock Sensor

  • Eagle Knock Sensor

  • Ford Knock Sensor

  • Geo Knock Sensor

  • GMC Knock Sensor

  • Honda Knock Sensor

  • Hyundai Knock Sensor

  • Infiniti Knock Sensor

  • Isuzu Knock Sensor

  • Jeep Knock Sensor

  • Kia Knock Sensor

  • Lexus Knock Sensor

  • Lincoln Knock Sensor

  • Mazda Knock Sensor

  • Mercedes-Benz Knock Sensor

  • Mercury Knock Sensor

  • Mitsubishi Knock Sensor

  • Nissan Knock Sensor

  • Oldsmobile Knock Sensor

  • Plymouth Knock Sensor

  • Pontiac Knock Sensor

  • Porsche Knock Sensor

  • Saab Knock Sensor

  • Saturn Knock Sensor

  • Scion Knock Sensor

  • Subaru Knock Sensor

  • Toyota Knock Sensor

  • Volkswagen Knock Sensor

  • Volvo Knock Sensor



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