{"product_id":"spi-noise-knock-sensor-for-ski-doo-2017-2018-850-etec-replaces-oem-420664031","title":"SPI Noise \/ Knock Sensor for Ski-Doo 2017-2018 850 ETEC Replaces OEM# 420664031","description":"\u003ch2\u003eSPI Noise \/ Knock Sensor for Ski-Doo\u003c\/h2\u003e\u003cp\u003eThis SPI noise\/knock sensor replaces OEM part number 420664031 and monitors engine knock on Ski-Doo 850 ETEC snowmobiles from 2017-2018.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis SPI noise\/knock sensor is a direct replacement for Ski-Doo 850 ETEC snowmobiles. It detects abnormal engine vibrations to prevent detonation and protect the engine. The sensor is built to match OEM specifications for a precise fit and reliable performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect fit replacement for OEM# 420664031\u003c\/li\u003e\n\u003cli\u003eDetects engine knock with high sensitivity\u003c\/li\u003e\n\u003cli\u003eDurable construction for extreme cold conditions\u003c\/li\u003e\n\u003cli\u003eEasy plug-and-play installation\u003c\/li\u003e\n\u003cli\u003eRestores peak engine performance\u003c\/li\u003e\n\u003cli\u003eCompatible with 2017-2018 Ski-Doo 850 ETEC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Ski-Doo 850 ETEC (2017-2018)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMonitoring engine knock during deep snow riding\u003c\/li\u003e\n\u003cli\u003ePreventing engine damage in high-performance conditions\u003c\/li\u003e\n\u003cli\u003eReplacing a failed sensor on touring snowmobiles\u003c\/li\u003e\n\u003cli\u003eEnsuring smooth operation in varying temperatures\u003c\/li\u003e\n\u003cli\u003eQuick diagnostic replacement for check engine light\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e420664031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNoise\/Knock Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the function of a knock sensor? \u003cstrong\u003eA:\u003c\/strong\u003e It detects engine detonation and sends a signal to the ECU to adjust timing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if this sensor is compatible? \u003cstrong\u003eA:\u003c\/strong\u003e This SPI sensor is designed for 2017-2018 Ski-Doo 850 ETEC models with OEM# 420664031.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44890383876182,"sku":"SZ1F10595","price":109.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_b4ff4ce5-6554-4079-95ee-dae590088e8b.jpg?v=1781138636","url":"https:\/\/www.solidspare.com\/products\/spi-noise-knock-sensor-for-ski-doo-2017-2018-850-etec-replaces-oem-420664031","provider":"Solid Spare","version":"1.0","type":"link"}