{"product_id":"denso-234-9139-air-fuel-ratio-sensor-upstream","title":"Denso 234-9139 Air \/ Fuel Ratio Sensor - Upstream","description":"\u003ch2\u003eReliable Air\/Fuel Ratio Sensor for Subaru Legacy and Outback\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Air\/Fuel Ratio Sensor 234-9139 is designed specifically for Subaru Legacy and Outback models. This heated sensor ensures accurate air-fuel mixture readings to help maintain 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 Subaru Legacy and Outback vehicles\u003c\/li\u003e\n\u003cli\u003e8.58-inch wiring harness length for precise installation\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration with male connector\u003c\/li\u003e\n\u003cli\u003eThread diameter of 0.708 inches for secure mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type for standard durability and performance\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. The 234-9139 air\/fuel ratio sensor maintains factory-level quality and fitment, ensuring compatibility and reliable operation in Subaru Legacy and Outback models. This line focuses on providing components that match the original sensor's design and function without modification.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Denso air\/fuel ratio sensor features a heated element to provide quicker sensor activation and more accurate readings under various operating conditions. The 8.58-inch wiring harness length allows for proper routing and connection within the engine bay. With four wires and a male connector, this sensor integrates seamlessly with the vehicle's existing wiring harness. The 0.708-inch thread diameter ensures a secure and proper fit in the exhaust system. Designed specifically for Subaru Legacy and Outback models, part number 234-9139 offers a precise fit and reliable performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps correct inaccurate air\/fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eResolves engine performance issues related to faulty sensors\u003c\/li\u003e\n\u003cli\u003eReduces emissions by maintaining proper fuel ratios\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing accurate sensor data\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Carefully remove the old sensor and inspect the mounting threads for damage. Use the 8.58-inch wiring harness length to route the sensor cable without tension or interference. Confirm the male connector securely mates with the vehicle harness. Torque the sensor to manufacturer specifications to avoid leaks or damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style sensors are manufactured to meet original equipment standards for fit, form, and function. This part number 234-9139 undergoes rigorous testing to ensure durability and reliable operation in Subaru Legacy and Outback vehicles. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52163110043829,"sku":"BBNF-234-9139","price":177.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2349139_Fro.jpg?v=1775590283","url":"https:\/\/www.partcatalog.com\/products\/denso-234-9139-air-fuel-ratio-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}