Walker 242-1333 Ignition Knock (Detonation) Sensor

OE Knock Sensor Replacement

Walker Sensor Only ignition knock sensor 242-1333 is an OE replacement sensor for gasoline engines that rely on precise knock detection. It monitors engine vibration and sends the signal the ECU uses to adjust ignition timing in real time, helping prevent spark knock and related drivability problems.

Built to OE specifications for frequency range, sensitivity, and electrical output, this Walker knock sensor supports accurate detonation detection on applications such as Dodge Durango, Jeep Wrangler, and Ram 1500 platforms. The Sensor Only line focuses on direct-fit replacement sensors for factory-style operation.

Key Features

• OE replacement ignition knock (detonation) sensor
• Engineered to match OE frequency range, sensitivity, and output
• Detects knock events so the ECU can adjust ignition timing
• Heat- and oil-resistant construction for engine-block environments
• Direct-fit design with factory-style electrical connection
• Part number 242-1333 for application matching and catalog lookup

Detailed Product Information

Walker 242-1333 is designed around the resonant frequency of knock in the target engine platform, allowing the control system to identify detonation accurately and respond with spark retard when needed. The sensor uses a 2-terminal, male terminal layout with 1 female oblong connector and pin-style connection details for OE-style integration. For buyers searching for a knock sensor for 2018-2024 Ram 1500, 2018-2022 Jeep Wrangler, or 2018-2023 Dodge Charger, this part number provides a direct replacement path for the original sensor location.

Part number 242-1333 is also listed across additional Chrysler, Dodge, Jeep, Fiat, and Ram applications through 2026, making it a practical choice when diagnosing knock sensor faults or replacing a failed sensor on supported vehicles.

Common Issues This Part Addresses

• Knock sensor fault codes such as P0325 or P0330
• Erratic ignition timing caused by inaccurate knock detection
• Engine pinging or spark knock under load
• Reduced fuel economy from timing being held back
• Drivability concerns tied to detonation sensor failure

Installation Notes

Install the sensor in the original threaded location and verify the connector matches the factory harness before installation. Clean the mounting surface and follow the vehicle service procedure for torque and connector routing so the sensor can read engine vibration correctly. Confirm the application by year, make, and model before ordering, especially when sourcing a knock sensor for Ram 2500, Jeep Grand Cherokee, or Dodge Hornet platforms.

Quality Assurance

Walker Products builds this sensor as an OE replacement component with specifications aligned to factory frequency response and electrical output requirements. The design uses durable materials selected for the heat and oil exposure common at the engine block and cylinder head.