{"product_id":"denso-234-5712-air-fuel-ratio-sensor-upstream","title":"Denso 234-5712 Air \/ Fuel Ratio Sensor - Upstream","description":"\u003ch2\u003eOverview of the Denso OE Style Air\/Fuel Ratio Sensor 234-5712\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Air\/Fuel Ratio Sensor 234-5712 is designed specifically for select BMW models, including the 340i, 440i, 540i, and others. This heated sensor ensures accurate air and fuel mixture readings to support optimal engine performance and emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW models such as 340i, 440i xDrive, and 740i xDrive\u003c\/li\u003e\n\u003cli\u003e13.19-inch wiring harness length for precise installation\u003c\/li\u003e\n\u003cli\u003eFive-wire configuration with male connector\u003c\/li\u003e\n\u003cli\u003eThread diameter of 0.701 inches for secure mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type for standard OE replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Denso Air\/Fuel Ratio Sensor from the OE Style line is engineered to meet original equipment specifications for BMW vehicles. The heated sensor element allows for quicker activation and more accurate readings under various operating conditions. With a wiring harness length of 13.19 inches and a five-wire setup, this sensor integrates seamlessly with the vehicle’s existing electrical system. The male connector and 0.701-inch thread diameter ensure a secure and reliable fit. Designed as a specific fit part, it is compatible with BMW models including the 340i, 340i GT xDrive, 440i Gran Coupe, 540i xDrive, 640i xDrive Gran Turismo, 740i, M240i, and X3, among others.\u003c\/p\u003e\u003ch2\u003eAbout the OE Style Product Line\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style product line focuses on delivering parts that closely replicate original equipment specifications. This ensures that the 234-5712 Air\/Fuel Ratio Sensor maintains the performance and reliability expected from factory-installed components. The OE Style line is ideal for customers seeking a direct replacement sensor that matches the fit, form, and function of the original part.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air\/fuel mixture readings for improved engine efficiency\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper combustion control\u003c\/li\u003e\n\u003cli\u003ePrevents rough idling and poor fuel economy caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine performance in BMW 340i, 440i, 540i, and other compatible models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Denso 234-5712 Air\/Fuel Ratio Sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to avoid damaging the sensor or wiring harness. Verify the connector is securely attached and the thread diameter matches the mounting port. This sensor is designed for specific BMW models, so confirm compatibility before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso manufactures the 234-5712 sensor to meet strict quality standards, ensuring reliable performance and durability. The OE Style line parts are tested to match original equipment specifications. Warranty details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52163109486773,"sku":"BBNF-234-5712","price":155.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2345712_Fro.jpg?v=1775590278","url":"https:\/\/www.partcatalog.com\/products\/denso-234-5712-air-fuel-ratio-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}