{"product_id":"denso-234-5178-air-fuel-ratio-sensor","title":"Denso 234-5178 Air \/ Fuel Ratio Sensor - Upstream","description":"\u003ch2\u003eOverview of the Denso OE Style Air\/Fuel Ratio Sensor\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Air\/Fuel Ratio Sensor 234-5178 is designed specifically for Subaru Forester and WRX models. This heated sensor ensures accurate air and fuel mixture readings to 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 Forester and WRX vehicles\u003c\/li\u003e\n\u003cli\u003e11.10-inch wiring harness length for precise installation\u003c\/li\u003e\n\u003cli\u003eFive-wire configuration with female connector\u003c\/li\u003e\n\u003cli\u003eThread diameter of 0.708 inches for secure mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Denso 234-5178 air\/fuel ratio sensor is engineered to provide accurate feedback to the engine control unit by measuring the oxygen content in the exhaust gases. This heated sensor type improves warm-up time, allowing the engine to reach optimal operating conditions more quickly. With a wiring harness length of 11.10 inches and a five-wire setup, it offers a precise and secure connection. The female connector and 0.708-inch thread diameter ensure compatibility and ease of installation on specific Subaru Forester and WRX models.\u003c\/p\u003e\u003cp\u003eThis sensor is part of Denso's OE Style product line, which focuses on delivering components that meet original equipment specifications. The OE Style line is designed to provide a balance of quality and value, making it suitable for replacement parts that require exact fit and function without deviation from factory standards.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps maintain proper air\/fuel mixture for efficient combustion\u003c\/li\u003e\n\u003cli\u003eReduces emissions by providing accurate sensor data to the ECU\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues related to faulty oxygen sensing\u003c\/li\u003e\n\u003cli\u003eAddresses check engine light triggers related to air\/fuel ratio sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by ensuring correct sensor operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Subaru Forester and WRX models before installation\u003c\/li\u003e\n\u003cli\u003eHandle the sensor carefully to avoid damage to the heated element\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid stripping the 0.708-inch thread diameter\u003c\/li\u003e\n\u003cli\u003eVerify wiring connections match the five-wire female connector configuration\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer torque specifications during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms related to part number 234-5178.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43978986913973,"sku":"BBNF-234-5178","price":136.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2345178_Fro.jpg?v=1775007468","url":"https:\/\/www.partcatalog.com\/products\/denso-234-5178-air-fuel-ratio-sensor","provider":"PartCatalog","version":"1.0","type":"link"}