Walker 242-1357 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor Overview

Walker 242-1357 is an OE replacement ignition knock sensor for gasoline engine management systems. It monitors engine vibration so the ECU can adjust ignition timing and reduce spark knock that can lead to drivability problems and internal engine damage.

Compatible With Ford Super Duty applications and the Ford F-53 Motorhome Chassis, this sensor is built to match OE frequency range, sensitivity, and electrical output. The Sensor Only product line focuses on direct-fit replacement components for restoring factory-style engine control performance.

Key Features

• OE replacement knock sensor for engine detonation monitoring
• Matched for OE frequency range, sensitivity, and electrical output
• Heat- and oil-resistant construction for engine bay conditions
• Direct installation into the original threaded location
• Factory-style electrical terminal connection

Detailed Description

Walker 242-1357 is engineered to detect the resonant frequency associated with knock in the intended engine platform, allowing the ECU to apply precise spark retard when needed. That control helps reduce timing-related issues, supports smoother operation, and helps protect the engine from damage caused by detonation. This part number is a direct-fit solution for Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, Ford F-550 Super Duty, and Ford F-53 Motorhome Chassis applications listed in the fitment data.

Walker 242-1357 is a practical replacement when diagnosing knock sensor fault codes such as P0325 or P0330, or when restoring proper ignition timing response after sensor failure. The Walker Sensor Only line is focused on OE-style replacement sensors built for accurate signal delivery and factory-style installation. This part number, 242-1357, is intended for vehicles that require a knock sensor in the original threaded mounting location.

Common Issues This Part Can Address

• Knock sensor fault codes related to detonation monitoring
• Erratic ignition timing response under load
• Spark knock caused by inaccurate sensor output
• Reduced fuel economy from improper timing correction
• Drivability concerns linked to failed knock detection

Installation Notes and Tips

Install the sensor in the original threaded location and connect it using the factory-style electrical terminal. Verify the connector condition and thread engagement before final tightening. Confirm the application against the vehicle's engine configuration and diagnostic trouble codes before replacement.

Quality Assurance

Walker Products builds this sensor to OE specifications for frequency range, sensitivity, and electrical output, using heat- and oil-resistant materials for engine-block and cylinder-head environments. Part number 242-1357 is designed as an OE replacement for direct-fit service.