{"product_id":"wpr-242-91027","title":"Walker Products Ignition Knock Detonation Sensor - 242-91027","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 - Full Service Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 242-91027\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\u003eBuilt for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.\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\u003eRestores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.\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\u003e2020 BMW 230i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 230i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 430i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 430i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW 430i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 430i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW 440i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 440i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW 440i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 440i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW 530e\u003c\/li\u003e\n\u003cli\u003e2020 BMW 530e xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 530i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 530i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 540i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 540i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 740i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 740i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 745e xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 840i\u003c\/li\u003e\n\u003cli\u003e2020 BMW 840i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW 840i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW 840i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2020 BMW i8\u003c\/li\u003e\n\u003cli\u003e2020 BMW M240i\u003c\/li\u003e\n\u003cli\u003e2020 BMW M240i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW M340i\u003c\/li\u003e\n\u003cli\u003e2020 BMW M340i xDrive\u003c\/li\u003e\n\u003cli\u003e2020 BMW X1\u003c\/li\u003e\n\u003cli\u003e2020 BMW X2\u003c\/li\u003e\n\u003cli\u003e2020 BMW X3\u003c\/li\u003e\n\u003cli\u003e2020 BMW X4\u003c\/li\u003e\n\u003cli\u003e2020 BMW X5\u003c\/li\u003e\n\u003cli\u003e2020 BMW X6\u003c\/li\u003e\n\u003cli\u003e2020 BMW X7\u003c\/li\u003e\n\u003cli\u003e2020 BMW Z4\u003c\/li\u003e\n\u003cli\u003e2020 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2020 Mini Cooper Clubman\u003c\/li\u003e\n\u003cli\u003e2020 Mini Cooper Countryman\u003c\/li\u003e\n\u003cli\u003e2019 BMW 230i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 230i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 330i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 330i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 330i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 340i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 430i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 430i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2019 BMW 430i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 430i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2019 BMW 440i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 440i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2019 BMW 440i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 440i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2019 BMW 530e\u003c\/li\u003e\n\u003cli\u003e2019 BMW 530e xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 530i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 530i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 540i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 540i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 640i xDrive Gran Turismo\u003c\/li\u003e\n\u003cli\u003e2019 BMW 740e xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW 740i\u003c\/li\u003e\n\u003cli\u003e2019 BMW 740i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW i8\u003c\/li\u003e\n\u003cli\u003e2019 BMW M240i\u003c\/li\u003e\n\u003cli\u003e2019 BMW M240i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW M760i xDrive\u003c\/li\u003e\n\u003cli\u003e2019 BMW X1\u003c\/li\u003e\n\u003cli\u003e2019 BMW X2\u003c\/li\u003e\n\u003cli\u003e2019 BMW X3\u003c\/li\u003e\n\u003cli\u003e2019 BMW X4\u003c\/li\u003e\n\u003cli\u003e2019 BMW X5\u003c\/li\u003e\n\u003cli\u003e2019 BMW X7\u003c\/li\u003e\n\u003cli\u003e2019 BMW Z4\u003c\/li\u003e\n\u003cli\u003e2019 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2019 Mini Cooper Clubman\u003c\/li\u003e\n\u003cli\u003e2019 Mini Cooper Countryman\u003c\/li\u003e\n\u003cli\u003e2018 BMW 230i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 230i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 330e\u003c\/li\u003e\n\u003cli\u003e2018 BMW 330i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 330i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 330i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 340i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 340i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 340i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 430i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 430i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2018 BMW 430i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 430i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2018 BMW 440i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 440i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2018 BMW 440i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 440i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2018 BMW 530e\u003c\/li\u003e\n\u003cli\u003e2018 BMW 530e xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 530i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 530i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 540i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 540i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 640i xDrive Gran Turismo\u003c\/li\u003e\n\u003cli\u003e2018 BMW 740e xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW 740i\u003c\/li\u003e\n\u003cli\u003e2018 BMW 740i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW M240i\u003c\/li\u003e\n\u003cli\u003e2018 BMW M240i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW M760i xDrive\u003c\/li\u003e\n\u003cli\u003e2018 BMW X1\u003c\/li\u003e\n\u003cli\u003e2018 BMW X2\u003c\/li\u003e\n\u003cli\u003e2018 BMW X3\u003c\/li\u003e\n\u003cli\u003e2018 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2018 Mini Cooper Clubman\u003c\/li\u003e\n\u003cli\u003e2018 Mini Cooper Countryman\u003c\/li\u003e\n\u003cli\u003e2017 BMW 230i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 230i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 330e\u003c\/li\u003e\n\u003cli\u003e2017 BMW 330i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 330i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 330i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 340i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 340i GT xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 340i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 430i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 430i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2017 BMW 430i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 430i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2017 BMW 440i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 440i Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2017 BMW 440i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 440i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003e2017 BMW 530i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 530i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 540i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 540i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 740e xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW 740i\u003c\/li\u003e\n\u003cli\u003e2017 BMW 740i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW i8\u003c\/li\u003e\n\u003cli\u003e2017 BMW M240i\u003c\/li\u003e\n\u003cli\u003e2017 BMW M240i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW M760i xDrive\u003c\/li\u003e\n\u003cli\u003e2017 BMW X1\u003c\/li\u003e\n\u003cli\u003e2017 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2017 Mini Cooper Clubman\u003c\/li\u003e\n\u003cli\u003e2017 Mini Cooper Countryman\u003c\/li\u003e\n\u003cli\u003e2016 BMW 330e\u003c\/li\u003e\n\u003cli\u003e2016 BMW 340i\u003c\/li\u003e\n\u003cli\u003e2016 BMW 340i xDrive\u003c\/li\u003e\n\u003cli\u003e2016 BMW 740i\u003c\/li\u003e\n\u003cli\u003e2016 BMW i8\u003c\/li\u003e\n\u003cli\u003e2016 BMW X1\u003c\/li\u003e\n\u003cli\u003e2016 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2016 Mini Cooper Clubman\u003c\/li\u003e\n\u003cli\u003e2015 BMW i8\u003c\/li\u003e\n\u003cli\u003e2015 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e2014 BMW i8\u003c\/li\u003e\n\u003cli\u003e2014 Mini Cooper\u003c\/li\u003e\n\u003cli\u003e1996 Kia Sportage\u003c\/li\u003e\n\u003cli\u003e1995 Porsche 968\u003c\/li\u003e\n\u003cli\u003e1995 Saab 900\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455149969711,"sku":"WPR-242-91027","price":41.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-91027_1.jpg?v=1789176487","url":"https:\/\/partspioneer.com\/products\/wpr-242-91027","provider":"Parts Pioneer","version":"1.0","type":"link"}