{"product_id":"ntk-21531-oxygen-sensor-downstream-or-downstream-left","title":"NTK 21531 Oxygen Sensor - Downstream or Downstream Left","description":"\u003ch2\u003eDirect Fit Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eNTK 21531 is a direct fit heated oxygen sensor built for specific downstream applications. It uses a threaded mounting design, a 4-wire configuration, and a 41.25-inch harness for a precise replacement on supported Saab, Saturn, and Volvo vehicles.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect fit, specific application oxygen sensor\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003e4-wire construction with 41.25-inch wiring harness\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOE-equivalent design for downstream emissions monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cp\u003eCompatible with downstream applications on select Saab, Saturn, and Volvo models. Fits 2000-2011 Saab 9-3, Downstream. Fits 2010-2011 Saab 9-3X, Downstream. Fits 2000-2010 Saab 9-5, Downstream. Fits 2001-2005 Saturn L300, Downstream Left. Fits 2001-2003 Saturn LW300, Downstream Left. Fits 2000-2002 Volvo S80, Downstream. Fits 2000-2001 Volvo S80, Downstream. Fits 2000 Saturn LS2, Downstream Left. Fits 2000 Saturn LW2, Downstream Left. NTK 21531 is also listed for additional downstream fitments across the same vehicle families.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFaulty downstream oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003eCheck engine lights related to emissions monitoring\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel feedback after catalyst operation\u003c\/li\u003e\n\u003cli\u003eSensor response issues caused by worn heating elements\u003c\/li\u003e\n\u003cli\u003eReplacement needs for threaded OE-style sensor locations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eConfirm the connector style, wire count, thread diameter, and downstream position before installation. Match the application exactly to the vehicle and engine configuration listed in the fitment data. NTK 21531 is a specific-fit replacement, so correct vehicle identification is important before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is part of the NGK family of products and is recognized as a major original equipment oxygen sensor supplier. The sensor is manufactured and tested to meet or exceed OE specifications for fit, form, and function. Part number 21531 cross-references Bosch 16064 and DENSO Auto Parts 234-4822 for the same application.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53534284415157,"sku":"BFPZ-21531","price":93.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_21531_Fro.jpg?v=1792129826","url":"https:\/\/www.partcatalog.com\/products\/ntk-21531-oxygen-sensor-downstream-or-downstream-left","provider":"PartCatalog","version":"1.0","type":"link"}