{"product_id":"wpr-242-1101","title":"Walker Products Ignition Knock Detonation Sensor - 242-1101","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 242-1101\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\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\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\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\u003e2023 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2023 Cadillac CT4\u003c\/li\u003e\n\u003cli\u003e2023 Cadillac CT5\u003c\/li\u003e\n\u003cli\u003e2023 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2023 Cadillac XT6\u003c\/li\u003e\n\u003cli\u003e2023 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2023 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2023 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2023 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2023 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2023 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2023 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2022 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2022 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2022 Cadillac CT4\u003c\/li\u003e\n\u003cli\u003e2022 Cadillac CT5\u003c\/li\u003e\n\u003cli\u003e2022 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2022 Cadillac XT6\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2022 Chevrolet Trax\u003c\/li\u003e\n\u003cli\u003e2022 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2022 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2022 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2021 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2021 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2021 Cadillac CT5\u003c\/li\u003e\n\u003cli\u003e2021 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2021 Cadillac XT6\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2021 Chevrolet Trax\u003c\/li\u003e\n\u003cli\u003e2021 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2021 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2021 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2020 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2020 Buick Regal Sportback\u003c\/li\u003e\n\u003cli\u003e2020 Cadillac CT5\u003c\/li\u003e\n\u003cli\u003e2020 Cadillac CT6\u003c\/li\u003e\n\u003cli\u003e2020 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2020 Cadillac XT6\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2020 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2020 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2020 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2019 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2019 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2019 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2019 Buick Regal Sportback\u003c\/li\u003e\n\u003cli\u003e2019 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2019 Cadillac CT6\u003c\/li\u003e\n\u003cli\u003e2019 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2019 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2019 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Volt\u003c\/li\u003e\n\u003cli\u003e2019 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2019 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2019 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2018 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2018 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2018 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2018 Buick Regal Sportback\u003c\/li\u003e\n\u003cli\u003e2018 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2018 Cadillac CT6\u003c\/li\u003e\n\u003cli\u003e2018 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2018 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2018 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Cruze\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Volt\u003c\/li\u003e\n\u003cli\u003e2018 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2018 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2018 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2017 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2017 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2017 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2017 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2017 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2017 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2017 Cadillac CT6\u003c\/li\u003e\n\u003cli\u003e2017 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2017 Cadillac XT5\u003c\/li\u003e\n\u003cli\u003e2017 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Cruze\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Volt\u003c\/li\u003e\n\u003cli\u003e2017 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2017 GMC Acadia Limited\u003c\/li\u003e\n\u003cli\u003e2017 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2017 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2016 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2016 Buick Encore\u003c\/li\u003e\n\u003cli\u003e2016 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2016 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2016 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2016 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2016 Cadillac CT6\u003c\/li\u003e\n\u003cli\u003e2016 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2016 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2016 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Cruze\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Impala Limited\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Volt\u003c\/li\u003e\n\u003cli\u003e2016 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2016 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2016 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2015 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2015 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2015 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2015 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2015 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2015 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2015 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2015 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Captiva Sport\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Colorado\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Impala Limited\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2015 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2015 GMC Canyon\u003c\/li\u003e\n\u003cli\u003e2015 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2014 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2014 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2014 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2014 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2014 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2014 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2014 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2014 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Captiva Sport\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Impala Limited\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2014 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2014 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2014 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2013 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2013 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2013 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2013 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2013 Cadillac ATS\u003c\/li\u003e\n\u003cli\u003e2013 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2013 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2013 Cadillac XTS\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Captiva Sport\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2013 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2013 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2013 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2012 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2012 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2012 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2012 Buick Verano\u003c\/li\u003e\n\u003cli\u003e2012 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2012 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Captiva Sport\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2012 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2012 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2012 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2011 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2011 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2011 Buick Regal\u003c\/li\u003e\n\u003cli\u003e2011 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2011 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2011 Cadillac STS\u003c\/li\u003e\n\u003cli\u003e2011 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2011 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2011 Chevrolet HHR\u003c\/li\u003e\n\u003cli\u003e2011 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2011 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2011 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2011 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2011 Saab 9-5\u003c\/li\u003e\n\u003cli\u003e2010 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2010 Buick LaCrosse\u003c\/li\u003e\n\u003cli\u003e2010 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2010 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2010 Cadillac STS\u003c\/li\u003e\n\u003cli\u003e2010 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e2010 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2010 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2010 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2010 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2010 GMC Terrain\u003c\/li\u003e\n\u003cli\u003e2010 Saab 9-5\u003c\/li\u003e\n\u003cli\u003e2010 Saturn Outlook\u003c\/li\u003e\n\u003cli\u003e2010 Saturn Vue\u003c\/li\u003e\n\u003cli\u003e2009 Buick Enclave\u003c\/li\u003e\n\u003cli\u003e2009 Cadillac CTS\u003c\/li\u003e\n\u003cli\u003e2009 Cadillac SRX\u003c\/li\u003e\n\u003cli\u003e2009 Cadillac STS\u003c\/li\u003e\n\u003cli\u003e2009 Chevrolet Equinox\u003c\/li\u003e\n\u003cli\u003e2009 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2009 Chevrolet Traverse\u003c\/li\u003e\n\u003cli\u003e2009 GMC Acadia\u003c\/li\u003e\n\u003cli\u003e2009 Pontiac G6\u003c\/li\u003e\n\u003cli\u003e2009 Pontiac Torrent\u003c\/li\u003e\n\u003cli\u003e2009 Saturn Aura\u003c\/li\u003e\n\u003cli\u003e2009 Saturn Outlook\u003c\/li\u003e\n\u003cli\u003e2009 Saturn Vue\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455122575663,"sku":"WPR-242-1101","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-1101_1.jpg?v=1789175983","url":"https:\/\/partspioneer.com\/products\/wpr-242-1101","provider":"Parts Pioneer","version":"1.0","type":"link"}