{"product_id":"wpr-242-1128","title":"Walker Products Ignition Knock Detonation Sensor - 242-1128","description":"\u003ch2\u003eProduct Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Walker Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Name:\u003c\/strong\u003e Ignition Knock Detonation Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Ignition Knock (Detonation) Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 242-1128\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1.0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWalker Products Ignition Knock (Detonation) Sensors are OE Replacement components that monitor engine vibrations to detect knocking or detonation events. These sensors are a critical part of the engine control system, allowing the ECU to adjust ignition timing in real time to prevent spark knock—a condition that can cause internal engine damage, reduced fuel economy, and drivability issues. Walker Knock Sensors are engineered to match OE specifications for frequency range, sensitivity, and electrical output. Each unit is tuned to detect the specific resonant frequency of knock in a given engine platform, enabling precise spark retard when knock is detected. Built from high-quality, heat- and oil-resistant materials, these sensors are designed to endure the harsh conditions of the engine block and cylinder head. With exact OE fitment, Walker Knock Sensors install directly into the original threaded locations and connect using factory-style electrical terminals. Whether addressing a fault code (e.g., P0325, P0330), correcting timing issues, or replacing a failed sensor, Walker Knock Sensors restore proper knock detection, improve engine safety, and support optimal ignition performance across a wide range of gasoline applications.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.\u003c\/li\u003e\n\u003cli\u003eDetects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.\u003c\/li\u003e\n\u003cli\u003eRestores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.\u003c\/li\u003e\n\u003cli\u003eExact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.\u003c\/li\u003e\n\u003cli\u003eBuilt for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cp\u003e1 years\u003c\/p\u003e\u003ch2\u003eCountry of Origin\u003c\/h2\u003e\u003cp\u003eChina\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cp\u003eSee the fitment table for engine, trim and other application details.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2025 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2025 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2025 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2025 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2024 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2024 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2024 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2024 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2023 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2023 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2023 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2023 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2022 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2022 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2022 Volvo V60 Cross Country\u003c\/li\u003e\n\u003cli\u003e2022 Volvo XC40\u003c\/li\u003e\n\u003cli\u003e2022 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2022 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2021 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2021 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2021 Volvo V60\u003c\/li\u003e\n\u003cli\u003e2021 Volvo V60 Cross Country\u003c\/li\u003e\n\u003cli\u003e2021 Volvo V90\u003c\/li\u003e\n\u003cli\u003e2021 Volvo V90 Cross Country\u003c\/li\u003e\n\u003cli\u003e2021 Volvo XC40\u003c\/li\u003e\n\u003cli\u003e2021 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2021 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2020 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2020 Volvo S90\u003c\/li\u003e\n\u003cli\u003e2020 Volvo V60\u003c\/li\u003e\n\u003cli\u003e2020 Volvo V60 Cross 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XC60\u003c\/li\u003e\n\u003cli\u003e2015 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2014 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2014 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2014 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2014 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2014 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2013 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2013 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2013 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2013 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2013 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2012 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2012 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2012 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2012 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2012 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2011 Volvo S60\u003c\/li\u003e\n\u003cli\u003e2011 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2011 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2011 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2011 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2010 Volvo S40\u003c\/li\u003e\n\u003cli\u003e2010 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2010 Volvo V50\u003c\/li\u003e\n\u003cli\u003e2010 Volvo V70\u003c\/li\u003e\n\u003cli\u003e2010 Volvo XC60\u003c\/li\u003e\n\u003cli\u003e2010 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2010 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2009 Volvo S40\u003c\/li\u003e\n\u003cli\u003e2009 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2009 Volvo V50\u003c\/li\u003e\n\u003cli\u003e2009 Volvo V70\u003c\/li\u003e\n\u003cli\u003e2009 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2009 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2008 Volvo S40\u003c\/li\u003e\n\u003cli\u003e2008 Volvo S80\u003c\/li\u003e\n\u003cli\u003e2008 Volvo V50\u003c\/li\u003e\n\u003cli\u003e2008 Volvo V70\u003c\/li\u003e\n\u003cli\u003e2008 Volvo XC70\u003c\/li\u003e\n\u003cli\u003e2008 Volvo XC90\u003c\/li\u003e\n\u003cli\u003e2007 Volvo S40\u003c\/li\u003e\n\u003cli\u003e2007 Volvo 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