{"product_id":"ntk-21535-oxygen-sensor-downstream-left-or-downstream-right","title":"NTK 21535 Oxygen Sensor - Downstream Left or Downstream Right","description":"\u003ch2\u003eDirect Fit Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eNTK Direct Fit Oxygen Sensor 21535 is a specific-fit heated oxygen sensor built for emission control applications. It uses a threaded mounting design with a 23.5-inch wiring harness and 4-wire configuration for direct replacement service.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for precise exhaust feedback\u003c\/li\u003e\n\u003cli\u003eSpecific-fit design for direct replacement applications\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e23.5-inch harness length for proper routing\u003c\/li\u003e\n\u003cli\u003e4-wire construction for OE-style signal control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cp\u003eCompatible with 1997-1998 Cadillac Catera, downstream right. Compatible with 1997-1998 Cadillac Catera, downstream left. This part cross-references DENSO Auto Parts 234-4688 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or slow-responding oxygen sensor\u003c\/li\u003e\n\u003cli\u003eRestoring exhaust mixture feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eAddressing emissions-related fault codes tied to sensor performance\u003c\/li\u003e\n\u003cli\u003eCorrecting drivability issues caused by inaccurate air-fuel data\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eUse the threaded mounting style and harness length to confirm routing before installation. Verify the connector layout and downstream position against the original sensor on the Cadillac Catera. The 18 mm thread diameter and 4-wire design should match the vehicle’s OE-style application requirements.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is part of the NGK family and is recognized as a major original equipment oxygen sensor supplier. This sensor is manufactured and tested to meet or exceed OE specifications for fit, form, and function.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731383312565,"sku":"BFPZ-21535","price":89.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_21535_Fro.jpg?v=1794294475","url":"https:\/\/www.partcatalog.com\/products\/ntk-21535-oxygen-sensor-downstream-left-or-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}