{"product_id":"denso-234-4478-oxygen-sensor","title":"Denso 234-4478 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOverview of Denso OE Style Oxygen Sensor 234-4478\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Oxygen Sensor 234-4478 is designed specifically for BMW 528i and X3 models. This heated oxygen sensor features a threaded mounting type and a 14.02-inch wiring harness, ensuring precise fitment and reliable performance in emission control systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for accurate emissions monitoring\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW 528i and X3 models\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 0.708-inch thread diameter\u003c\/li\u003e\n\u003cli\u003eFour-wire design with male connector\u003c\/li\u003e\n\u003cli\u003e14.02-inch wiring harness length for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Denso 234-4478 oxygen sensor is engineered to meet the exact specifications of BMW 528i and X3 vehicles. Its heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions. The sensor’s four-wire configuration includes a male connector, facilitating a secure electrical connection. With a 0.708-inch thread diameter and threaded mounting type, this sensor installs directly into the exhaust system, providing accurate oxygen level readings to the engine control unit.\u003c\/p\u003e\u003cp\u003eThis oxygen sensor is part of Denso’s OE Style product line, which focuses on delivering components that match original equipment specifications. The OE Style line ensures compatibility and performance consistent with factory-installed parts, making it a reliable choice for emission control sensor replacements.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve poor fuel economy caused by faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eAddresses rough engine idle and hesitation issues\u003c\/li\u003e\n\u003cli\u003eReduces increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eCorrects check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves overall engine performance and responsiveness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with BMW 528i and X3 models before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the 0.708-inch threaded sensor\u003c\/li\u003e\n\u003cli\u003eCheck wiring harness length (14.02 inches) for proper routing and connection\u003c\/li\u003e\n\u003cli\u003eVerify the male connector fits securely with the vehicle’s wiring harness\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications when mounting the sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation. While specific warranty details for part number 234-4478 should be confirmed at the point of purchase, Denso products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43977016541365,"sku":"BBNF-234-4478","price":100.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344478_Fro.jpg?v=1775007349","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4478-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}