Standard Motor Products KS425 Ignition Knock Sensor

The Standard Motor Products KS425 is a direct-fit OE replacement knock sensor designed to monitor engine vibrations caused by detonation and engine knock. This sensor creates a voltage signal based on vibration frequencies, which the engine computer uses to retard ignition timing and prevent knock, protecting your engine from damage.

Key Features:

• 2-terminal design with male blade-type terminals and female connector
• Bolt-mount installation for secure, vibration-resistant mounting
• Precision-machined sensor body tuned to engine knock frequency
• Piezoelectric disc construction for accurate signal generation
• Designed to respond to knock frequencies up to 1000Hz
• High-quality materials engineered to withstand extreme engine bay conditions
• 100% factory tested using accelerometer vibration testing

Standard Motor Products maintains complete quality control throughout the manufacturing process, with an automated data acquisition system that continuously monitors sensor output to ensure proper voltage response at specified frequency rates. Each sensor undergoes extensive testing to ensure reliable, trouble-free operation and delivers OE-quality performance for professional technicians and DIY mechanics alike.