{"product_id":"walker-250-24491-oxygen-sensor","title":"Walker 250-24491 Oxygen Sensor","description":"\u003ch2\u003eOverview of Walker Products OE Oxygen Sensor 250-24491\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE Oxygen Sensor 250-24491 is designed for precise emission control in select Buick, Cadillac, Chevrolet, GMC, Hummer, and Saab vehicles. This heated oxygen sensor features a specific fitment to ensure optimal performance and compatibility with various models including the Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Cadillac Escalade.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 4-wire design for accurate readings\u003c\/li\u003e\n\u003cli\u003eSpecific fitment for select GM and Saab models\u003c\/li\u003e\n\u003cli\u003e12.52-inch wiring harness length with 20 gauge wire\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eOverall length of 16.06 inches for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor (part number 250-24491) is engineered with a heated sensor element to provide faster response times and improved fuel management. The 4-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation under various engine conditions. The wiring harness length of 12.52 inches and 20 gauge wire size support durability and ease of routing during installation. The sensor’s threaded mounting type with an 18.0 mm diameter allows for a secure fit in the exhaust system. The radiused polygon male connector ensures a precise and stable electrical connection, reducing the risk of signal loss or corrosion.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, providing a direct replacement solution designed specifically for the vehicle makes and models listed. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system and supports compliance with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBuick 9-5 and Verano\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 2500, Camaro, Colorado, Corvette, Express 1500\/2500\/3500, Silverado 1500\/2500\/3500, Suburban 1500\/2500, Trailblazer\u003c\/li\u003e\n\u003cli\u003eGMC Canyon, Envoy, Sierra 1500\/2500\/3500, Yukon, Yukon XL 1500\/2500\u003c\/li\u003e\n\u003cli\u003eHummer H2, H3, H3T\u003c\/li\u003e\n\u003cli\u003eSaab 9-7x\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Oxygen Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncorrect air-fuel mixture readings causing poor fuel economy\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor signals\u003c\/li\u003e\n\u003cli\u003eIncreased emissions due to sensor failure\u003c\/li\u003e\n\u003cli\u003eEngine performance problems such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to sensor malfunction\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. Remove the old oxygen sensor carefully using the appropriate oxygen sensor socket. Verify the thread size (18.0 mm) matches the exhaust port. Connect the radiused polygon male connector securely to the vehicle’s wiring harness. Avoid twisting or stretching the wiring harness during installation. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet original equipment standards for fit, form, and function. This part number 250-24491 undergoes rigorous testing to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43532241895605,"sku":"DKHD-250-24491","price":55.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25024491_Fro.jpg?v=1774891685","url":"https:\/\/www.partcatalog.com\/products\/walker-250-24491-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}