{"product_id":"denso-234-4088-oxygen-sensor-upstream","title":"Denso 234-4088 Oxygen Sensor - Upstream","description":"\u003ch2\u003eReliable Oxygen Sensor for BMW 325i and 528e Models\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Oxygen Sensor 234-4088 is designed specifically for select BMW vehicles, including the 325i, 325is, 325iX, and 528e. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to your vehicle's engine control unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for BMW 325i, 325is, 325iX, and 528e models\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 0.708-inch thread diameter\u003c\/li\u003e\n\u003cli\u003eFour-wire design with female connector for secure connection\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 25.51 inches for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Denso OE Style Product Line\u003c\/h2\u003e\u003cp\u003eThe OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. This oxygen sensor maintains the quality and fitment standards expected from factory components, ensuring compatibility and reliable performance for your BMW 325i or 528e. The OE Style designation indicates a focus on precise fit and function without modification.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Denso 234-4088 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. Its four-wire configuration supports both the sensor signal and heater circuit, while the female connector ensures a secure and corrosion-resistant connection. The threaded mounting type with a 0.708-inch diameter allows for straightforward installation in the designated exhaust port. With a wiring harness length of 25.51 inches, this sensor provides adequate reach for proper routing in the engine bay.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for BMW 325i and 528e models\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor engine performance\u003c\/li\u003e\n\u003cli\u003eReduces emissions-related trouble codes and check engine light triggers\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by optimizing combustion efficiency\u003c\/li\u003e\n\u003cli\u003ePrevents failed emissions tests due to faulty oxygen sensor readings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove and install the sensor. Verify the connector gender matches the vehicle harness for a proper fit. Avoid damaging the wiring harness during installation and route the wires away from hot exhaust components. Torque the sensor to manufacturer specifications to prevent leaks.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details are not provided here, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52163107094709,"sku":"BBNF-234-4088","price":93.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344088_Fro.jpg?v=1775590264","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4088-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}