Walker 242-1432 Ignition Knock (Detonation) Sensor

OE Knock Sensor for Hyundai and Kia

Walker 242-1432 is a sensor-only ignition knock sensor built for OE replacement use on select Hyundai Elantra, Hyundai Ioniq, and Kia Niro applications. It monitors engine vibration and sends the signal the ECU uses to adjust ignition timing when detonation is detected.

Walker Sensor Only parts focus on the sensing element itself, making this a direct replacement choice when the original knock sensor has failed or set a fault code. Part number 242-1432 is engineered to match OE frequency range, sensitivity, and electrical output for the listed vehicles.

Key Features

• Sensor-only ignition knock (detonation) sensor
• Blade terminal type with 2 terminals
• 1 female oblong connector
• OE-style electrical output and sensitivity calibration
• Heat- and oil-resistant construction for engine-block environments
• Direct-fit replacement for factory threaded mounting locations

Product Details

This Walker knock sensor is designed for gasoline engines that rely on accurate detonation detection to protect internal components and maintain proper ignition timing. By monitoring resonant engine vibration, it helps the ECU identify spark knock and respond with timing correction in real time. For shoppers searching for a Hyundai Elantra knock sensor, Hyundai Ioniq knock sensor, or Kia Niro knock sensor, 242-1432 provides an OE-style replacement path with factory-style connector geometry and terminal layout.

Walker Products tunes each sensor to the expected knock frequency for the application, which helps preserve signal accuracy across the supported platforms. Part number 242-1432 is a practical replacement when diagnosing knock sensor fault codes such as P0325 or P0330, or when restoring proper engine control after a failed original sensor.

What It Helps Address

• Knock sensor fault codes such as P0325 or P0330
• Erratic ignition timing caused by inaccurate knock detection
• Spark knock or detonation-related drivability concerns
• Reduced fuel economy linked to timing correction issues
• Engine protection concerns from delayed knock response

Installation Notes

Compatible With 2021-2026 Hyundai Elantra, 2017-2022 Hyundai Ioniq, and 2017-2022 Kia Niro. Verify the connector shape, terminal count, and threaded mounting location before installation. Clean the mounting surface and follow the vehicle service procedure for torque and connector engagement. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Walker Products builds this sensor to OE replacement standards with materials selected for heat and oil exposure in the engine bay. The design is focused on stable signal output, correct fitment, and reliable knock detection for the listed Hyundai and Kia applications.