{"product_id":"denso-234-8045-oxygen-sensor-downstream","title":"Denso 234-8045 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOE-style downstream oxygen sensor\u003c\/h2\u003e\u003cp\u003eThis Denso oxygen sensor is a specific-fit, OE-style replacement built for direct installation and accurate signal control. It is engineered for Honda Civic applications and identified by part number 234-8045.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNarrow-band sensor for precise exhaust feedback.\u003c\/li\u003e\n\u003cli\u003e4-wire design with a 14.76-inch harness length.\u003c\/li\u003e\n\u003cli\u003eOE-style construction for a first-time fit.\u003c\/li\u003e\n\u003cli\u003eBuilt to strict OE standards for consistent replacement performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment details\u003c\/h2\u003e\u003cp\u003eFits 2023 Honda Civic, downstream. Fits 2021 Honda Civic, downstream. Fits 2018-2019 Honda Civic, downstream.\u003c\/p\u003e\u003cp\u003eThis part cross-references Honda 365325BFA01 and Denso 2348045 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat this sensor helps address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light concerns related to downstream oxygen sensor faults.\u003c\/li\u003e\n\u003cli\u003eIncorrect exhaust oxygen readings that affect fuel control.\u003c\/li\u003e\n\u003cli\u003eReduced fuel efficiency caused by a worn sensor.\u003c\/li\u003e\n\u003cli\u003eSlow or inconsistent sensor response in the exhaust stream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation notes and tips\u003c\/h2\u003e\u003cp\u003eConfirm the downstream mounting location and connector style before installation. Match the harness length and wire count to the original sensor, and inspect the exhaust threads and wiring route for damage or contamination.\u003c\/p\u003e\u003ch2\u003eQuality assurance\u003c\/h2\u003e\u003cp\u003eDenso manufactures and tests this sensor to OE standards and uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination. That design supports stable operation and long service life.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":53333415362741,"sku":"BBNF-234-8045","price":147.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2348045_Sid.jpg?v=1789714456","url":"https:\/\/www.partcatalog.com\/products\/denso-234-8045-oxygen-sensor-downstream","provider":"PartCatalog","version":"1.0","type":"link"}