{"product_id":"ntk-21040-oxygen-sensor","title":"NTK 21040 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of NTK Direct Fit Oxygen Sensor 21040\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor 21040 is designed for precise emission control in select Chevrolet, GMC, Oldsmobile, Pontiac, and Saturn vehicles. This specific fit oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: NTK\u003c\/li\u003e\n\u003cli\u003eBrand Line: Direct Fit Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003ePart Number: 21040\u003c\/li\u003e\n\u003cli\u003eSensor Type: Non heated\u003c\/li\u003e\n\u003cli\u003eWire Quantity: 2 wires\u003c\/li\u003e\n\u003cli\u003eWiring Harness Length: 15.25 inches\u003c\/li\u003e\n\u003cli\u003eThread Diameter: 18 mm\u003c\/li\u003e\n\u003cli\u003eMounting Type: Threaded\u003c\/li\u003e\n\u003cli\u003eFitment: Specific fit for Chevrolet, GMC, Oldsmobile, Pontiac, and Saturn models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor 21040 is a non-heated oxygen sensor featuring a 15.25-inch wiring harness and a threaded mounting type with an 18 mm thread diameter. This sensor includes two wires and is engineered for specific fitment, ensuring compatibility with various models such as the Chevrolet Cavalier, GMC Sonoma, Pontiac Grand Am, Saturn LS, and Oldsmobile Alero. The non-heated design is suitable for vehicles that do not require a heated sensor for quicker warm-up times.\u003c\/p\u003e\u003cp\u003eThe Direct Fit Oxygen Sensor product line by NTK focuses on providing exact replacement sensors that match OEM specifications. This ensures straightforward installation and reliable performance without the need for modifications or additional adapters. The 21040 sensor is part of this line, offering a direct replacement solution for emission control systems in the listed vehicle makes and models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen level readings for proper engine management\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor fuel economy caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring correct air-fuel mixture\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine performance and drivability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility by verifying make, model, and year before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to remove the old sensor and install the threaded sensor securely\u003c\/li\u003e\n\u003cli\u003eHandle wiring harness carefully to avoid damage during installation\u003c\/li\u003e\n\u003cli\u003eCheck for proper sensor connection and secure fit to prevent exhaust leaks\u003c\/li\u003e\n\u003cli\u003eClear any diagnostic trouble codes after installation to reset the engine control unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNTK oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit Oxygen Sensor 21040 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 or distributor.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":43961853313205,"sku":"BFPZ-21040","price":43.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_21040_Fro.jpg?v=1775006690","url":"https:\/\/www.partcatalog.com\/products\/ntk-21040-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}