{"product_id":"denso-234-4257-oxygen-sensor","title":"Denso 234-4257 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of the Denso OE Style Oxygen Sensor 234-4257\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Oxygen Sensor 234-4257 is designed specifically for select Chevrolet and GMC vehicles, including the Express 3500 and Savana 2500\/3500 models. This heated oxygen sensor features a 12.40-inch wiring harness and a threaded mounting type for precise installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Chevrolet Express 3500 and GMC Savana 2500\/3500\u003c\/li\u003e\n\u003cli\u003e12.40-inch wiring harness length for optimal routing\u003c\/li\u003e\n\u003cli\u003eFour-wire design with female connector\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 0.708-inch thread diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Denso 234-4257 oxygen sensor is engineered with a heated element to ensure quicker activation and improved emissions control. Its four-wire configuration includes a female connector, facilitating a secure and reliable electrical connection. The sensor’s 0.708-inch threaded mounting type allows for straightforward installation in the exhaust system. With a wiring harness length of 12.40 inches, this sensor provides adequate reach for proper placement without excess slack.\u003c\/p\u003e\u003ch2\u003eAbout the OE Style Product Line\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style line is designed to meet original equipment specifications, providing a direct replacement for factory-installed parts. This ensures compatibility and performance consistent with the original sensor on Chevrolet Express 3500 and GMC Savana 2500\/3500 vehicles. The OE Style sensors maintain the quality and fitment standards expected from Denso, supporting reliable emissions control and engine management.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen level readings for engine control units\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor fuel economy issues\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eEliminates check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003ePrevents failed emissions tests due to sensor malfunction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Denso 234-4257 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to avoid damaging the threaded mounting. Verify the female connector matches the vehicle’s wiring harness for a secure fit. It is recommended to inspect the wiring harness for any damage before installation and to apply anti-seize compound on the threads if specified by the vehicle manufacturer.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso oxygen sensors, including the 234-4257, are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. This ensures dependable performance and durability for Chevrolet Express 3500 and GMC Savana 2500\/3500 applications.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43976821768373,"sku":"BBNF-234-4257","price":54.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344257_Fro.jpg?v=1775007297","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4257-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}