{"product_id":"walker-250-21054-oxygen-sensor","title":"Walker 250-21054 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 250-21054 Oxygen Sensor for Lexus and Toyota\u003c\/h2\u003e\u003cp\u003eThe Walker 250-21054 oxygen sensor is designed specifically for select Lexus and Toyota models, including the GS300, MR2, SC300, and Supra. This non-heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWiring harness length: 15.28 inches\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement: 20 gauge\u003c\/li\u003e\n\u003cli\u003eSensor type: Non-heated oxygen sensor\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Lexus and Toyota models\u003c\/li\u003e\n\u003cli\u003eSingle wire configuration\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector\u003c\/li\u003e\n\u003cli\u003eThread diameter: 18.0 mm\u003c\/li\u003e\n\u003cli\u003eOverall length: 18.82 inches\u003c\/li\u003e\n\u003cli\u003eFlange mount installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products OE Line Details\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts that meet or exceed factory specifications. The Walker Products OE line ensures compatibility and reliable performance for emission control components like oxygen sensors, making it a suitable replacement for the 250-21054 part number in Lexus and Toyota vehicles.\u003c\/p\u003e\u003ch2\u003eProduct Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe Walker 250-21054 oxygen sensor features a non-heated design with a single 20-gauge wire, making it a direct fit for specific Lexus and Toyota models. Its 15.28-inch wiring harness and 18.82-inch overall length provide the necessary reach and flexibility for proper installation. The sensor uses a radiused polygon male connector and mounts securely with an 18.0 mm thread diameter flange mount. This precise fitment ensures accurate exhaust gas readings, which are critical for maintaining emission standards and engine efficiency.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps maintain proper air-fuel mixture for Lexus GS300 and Toyota Supra engines\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eReduces emissions by providing accurate exhaust gas data\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by ensuring correct sensor feedback\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine performance in Toyota MR2 and SC300 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-21054 oxygen sensor, ensure the flange mount is securely tightened to prevent exhaust leaks. Verify the radiused polygon male connector matches the vehicle’s wiring harness for a proper electrical connection. Handle the sensor carefully to avoid damaging the wire or connector. It is recommended to use anti-seize compound on the threads to facilitate future removal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. The 250-21054 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43528088387765,"sku":"DKHD-250-21054","price":58.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25021054_Fro.jpg?v=1774891500","url":"https:\/\/www.partcatalog.com\/products\/walker-250-21054-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}