{"product_id":"wpr-242-1236","title":"Walker Products Ignition Knock Detonation Sensor - 242-1236","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 242-1236\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\u003eRomania\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\u003e2015 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2015 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2015 Mercedes-Benz SLS AMG\u003c\/li\u003e\n\u003cli\u003e2014 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2014 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2014 Mercedes-Benz SLS AMG\u003c\/li\u003e\n\u003cli\u003e2013 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2013 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2013 Mercedes-Benz S400\u003c\/li\u003e\n\u003cli\u003e2013 Mercedes-Benz SLS AMG\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz C300\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz GL550\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz GLK350\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz S400\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz SL550\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz SL63 AMG\u003c\/li\u003e\n\u003cli\u003e2012 Mercedes-Benz SLS AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz C300\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz CLS550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz CLS63 AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz E550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz GL550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz GLK350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz ML450\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz ML550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz ML63 AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz S400\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz S550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz SL550\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz SL63 AMG\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz SLK300\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2011 Mercedes-Benz SLS AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz C300\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz CL550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz CL63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz CLS550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz CLS63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz E550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz GL550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz GLK350\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz ML450\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz ML550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz ML63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz S400\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz S550\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz S63 AMG\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz SLK300\u003c\/li\u003e\n\u003cli\u003e2010 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz C300\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CL550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CL63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CLK350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CLK550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CLS550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz CLS63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz E550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz G550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz GL550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz ML550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz ML63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz S550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz S63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz SL550\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz SL63 AMG\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz SLK300\u003c\/li\u003e\n\u003cli\u003e2009 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2008 Dodge Sprinter 2500\u003c\/li\u003e\n\u003cli\u003e2008 Dodge Sprinter 3500\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz C300\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CL550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CL63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CLK350\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CLK550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CLK63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CLS550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz CLS63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz E550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz GL550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz ML550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz ML63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz S550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz S63 AMG\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz SL550\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz SLK280\u003c\/li\u003e\n\u003cli\u003e2008 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2007 Dodge Sprinter 2500\u003c\/li\u003e\n\u003cli\u003e2007 Dodge Sprinter 3500\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz C230\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz C280\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CL550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CLK350\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CLK550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CLK63 AMG\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CLS550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz CLS63 AMG\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz E550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz GL450\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz ML63 AMG\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz R63 AMG\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz S550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz SL550\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz SLK280\u003c\/li\u003e\n\u003cli\u003e2007 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz C230\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz C280\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz C350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz CLK350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz E350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz ML350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz R350\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz SLK280\u003c\/li\u003e\n\u003cli\u003e2006 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003cli\u003e2005 Mercedes-Benz SLK350\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455133946159,"sku":"WPR-242-1236","price":48.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-1236_1.jpg?v=1789176224","url":"https:\/\/partspioneer.com\/products\/wpr-242-1236","provider":"Parts Pioneer","version":"1.0","type":"link"}