{"product_id":"ntk-21563-oxygen-sensor-downstream-left-or-downstream-right","title":"NTK 21563 Oxygen Sensor - Downstream Left or Downstream Right","description":"\u003ch2\u003eDirect Fit Oxygen Sensor for Cadillac XLR\u003c\/h2\u003e\u003cp\u003eRestore accurate exhaust feedback with this NTK direct fit oxygen sensor, part number 21563. It is built as a specific-fit, threaded heated sensor with a 4-wire design and OE-style form for straightforward replacement on supported Cadillac XLR applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect fit oxygen sensor for specific applications\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with threaded mounting\u003c\/li\u003e\n\u003cli\u003e31.5-inch wiring harness length\u003c\/li\u003e\n\u003cli\u003e18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eNTK part number 21563\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 21563 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement sensors with OE-style fit, form, and function. NTK is known for oxygen sensor manufacturing and uses ceramic-based technology and extensive production testing to support consistent quality. For Cadillac XLR owners, this sensor is listed for 2005-2006 downstream left and downstream right positions, with notes indicating OE-equivalent design and direct fit construction.\u003c\/p\u003e\u003cp\u003eThis part cross-references Walker Exhaust 15147 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Replacement Issues\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFaulty oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003eCheck engine light related to sensor performance\u003c\/li\u003e\n\u003cli\u003eSlow sensor response from a worn heated element\u003c\/li\u003e\n\u003cli\u003eIncorrect exhaust mixture feedback\u003c\/li\u003e\n\u003cli\u003eReplacement needs for downstream sensor locations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Quality Assurance\u003c\/h2\u003e\u003cp\u003eUse the threaded mounting style and harness length to confirm application match before installation. Verify the connector routing and sensor location against the vehicle’s original configuration, especially on 2005-2006 Cadillac XLR downstream positions. NTK states that these oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications.\u003c\/p\u003e\u003cp\u003eNTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors, and the Direct Fit Oxygen Sensor line is built to support OE application coverage.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731383869621,"sku":"BFPZ-21563","price":94.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_21563_Fro.jpg?v=1794294520","url":"https:\/\/www.partcatalog.com\/products\/ntk-21563-oxygen-sensor-downstream-left-or-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}