{"product_id":"ntk-25591-oxygen-sensor","title":"NTK 25591 Oxygen Sensor - Downstream or Intermediate","description":"\u003ch2\u003eOverview of NTK Direct Fit Oxygen Sensor 25591\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor 25591 is designed specifically for select Volvo models, including the S40, S60, S70, V50, and V70. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Volvo S40, S60, S70, V50, and V70 models\u003c\/li\u003e\n\u003cli\u003e32-inch wiring harness length for convenient installation\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18mm thread diameter\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration for reliable signal transmission\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetails on the Direct Fit Oxygen Sensor Product Line\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor line is engineered to provide exact replacement sensors that match the original equipment specifications. This ensures compatibility and performance consistency for vehicles requiring precise emission control components. The 25591 sensor maintains the integrity of the vehicle’s emission system by delivering accurate oxygen level readings, which are critical for maintaining fuel efficiency and reducing harmful exhaust emissions.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response and reducing emissions during cold starts. The 32-inch wiring harness length offers flexibility during installation, while the four-wire design supports both the sensor signal and heater circuit. The threaded mounting type with an 18mm diameter ensures a secure and proper fit in the exhaust system of compatible Volvo models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps correct inaccurate air-fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eReduces engine misfires related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by optimizing combustion\u003c\/li\u003e\n\u003cli\u003ePrevents increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eResolves check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the NTK 25591 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the sensor’s connector matches the vehicle’s harness and confirm the threaded mounting fits securely. It is recommended to apply anti-seize compound on the threads to facilitate future removal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNTK oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Direct Fit Oxygen Sensor 25591 undergoes rigorous testing to comply with OEM specifications. Please refer to NTK’s warranty policy for coverage details on this part.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":43964828025013,"sku":"BFPZ-25591","price":140.05,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25591_Fro.jpg?v=1775006830","url":"https:\/\/www.partcatalog.com\/products\/ntk-25591-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}