{"product_id":"ntk-25176-oxygen-sensor-upstream","title":"NTK 25176 Oxygen Sensor - Upstream","description":"\u003ch2\u003eDirect-Fit Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThe NTK 25176 is a specific-fit heated oxygen sensor built for emission control applications that require accurate exhaust feedback and OE-style fitment. It is engineered for the upstream location on select Kia Rio models and uses a threaded mounting design for a direct replacement approach.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor design for faster operating response.\u003c\/li\u003e\n\u003cli\u003eSpecific-fit application for straightforward replacement.\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with a 9.2500-inch wiring harness length.\u003c\/li\u003e\n\u003cli\u003e18.000 thread diameter and threaded mounting type.\u003c\/li\u003e\n\u003cli\u003eNTK 25176 direct-fit sensor for emission control service.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25176 is part of the Direct Fit Oxygen Sensor line, built to match the original sensor style used in select Kia Rio applications. As an upstream oxygen sensor, it monitors exhaust conditions before the catalytic converter so the engine control system can adjust fuel delivery based on real-time data. The heated design helps the sensor reach operating temperature efficiently, while the specific-fit construction supports clean replacement without adapting the harness or mounting style. This NTK oxygen sensor is a practical choice for restoring proper feedback in 2004-2005 Kia Rio emission control service, and the 25176 part number is useful when verifying the correct application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine lights related to oxygen sensor performance.\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel mixture feedback from a worn sensor.\u003c\/li\u003e\n\u003cli\u003eSlow sensor response during cold operation.\u003c\/li\u003e\n\u003cli\u003eEmission control faults tied to upstream exhaust monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 2004-2005 Kia Rio, upstream. Confirm the threaded mounting style, 4-wire layout, and harness length before installation. Verify the connector routing and sensor location against the original unit to ensure the NTK 25176 matches the vehicle configuration.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is part of the NGK family of products and is recognized as a major original equipment oxygen sensor supplier. The 25176 is extensively tested during manufacturing to meet or exceed OE specifications for fit, form, and function.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53260847415477,"sku":"BFPZ-25176","price":97.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25176_Fro.jpg?v=1789276895","url":"https:\/\/www.partcatalog.com\/products\/ntk-25176-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}