{"product_id":"wpr-242-1053","title":"Walker Products Ignition Knock Detonation Sensor - 242-1053","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 242-1053\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\u003eBuilt for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.\u003c\/li\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\u003eExact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.\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\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\u003e2006 Buick Lucerne\u003c\/li\u003e\n\u003cli\u003e2006 Cadillac DTS\u003c\/li\u003e\n\u003cli\u003e2006 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2006 Cadillac STS\u003c\/li\u003e\n\u003cli\u003e2006 Cadillac XLR\u003c\/li\u003e\n\u003cli\u003e2006 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2006 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2006 Isuzu i-280\u003c\/li\u003e\n\u003cli\u003e2006 Isuzu i-350\u003c\/li\u003e\n\u003cli\u003e2005 Buick Rainier\u003c\/li\u003e\n\u003cli\u003e2005 Cadillac DeVille\u003c\/li\u003e\n\u003cli\u003e2005 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2005 Cadillac STS\u003c\/li\u003e\n\u003cli\u003e2005 Cadillac XLR\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Trailblazer\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Trailblazer EXT\u003c\/li\u003e\n\u003cli\u003e2005 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2005 GMC Envoy\u003c\/li\u003e\n\u003cli\u003e2005 GMC Envoy XL\u003c\/li\u003e\n\u003cli\u003e2005 GMC Envoy XUV\u003c\/li\u003e\n\u003cli\u003e2005 Isuzu Ascender\u003c\/li\u003e\n\u003cli\u003e2005 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e2005 Saab 9-7x\u003c\/li\u003e\n\u003cli\u003e2004 Buick Rainier\u003c\/li\u003e\n\u003cli\u003e2004 Cadillac DeVille\u003c\/li\u003e\n\u003cli\u003e2004 Cadillac Seville\u003c\/li\u003e\n\u003cli\u003e2004 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2004 Cadillac XLR\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Trailblazer\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Trailblazer EXT\u003c\/li\u003e\n\u003cli\u003e2004 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2004 GMC Envoy\u003c\/li\u003e\n\u003cli\u003e2004 GMC Envoy XL\u003c\/li\u003e\n\u003cli\u003e2004 GMC Envoy XUV\u003c\/li\u003e\n\u003cli\u003e2004 Isuzu Ascender\u003c\/li\u003e\n\u003cli\u003e2004 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e2003 Cadillac DeVille\u003c\/li\u003e\n\u003cli\u003e2003 Cadillac Seville\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Trailblazer\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Trailblazer EXT\u003c\/li\u003e\n\u003cli\u003e2003 GMC Envoy\u003c\/li\u003e\n\u003cli\u003e2003 GMC Envoy XL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455117955375,"sku":"WPR-242-1053","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-1053_1.jpg?v=1789175808","url":"https:\/\/partspioneer.com\/products\/wpr-242-1053","provider":"Parts Pioneer","version":"1.0","type":"link"}