{"product_id":"ntk-25555-oxygen-sensor-upstream","title":"NTK 25555 Oxygen Sensor - Upstream","description":"\u003ch2\u003eDirect-Fit Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eNTK Direct Fit Oxygen Sensor 25555 is a specific-fit, threaded oxygen sensor built for direct replacement applications. It uses a heated, 4-wire design with an 18 mm thread diameter and a 21.2500 wiring harness length for a precise installation profile.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor design for accurate exhaust feedback\u003c\/li\u003e\n\u003cli\u003eSpecific-fit replacement for direct application matching\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e4-wire configuration for signal and heater circuit operation\u003c\/li\u003e\n\u003cli\u003e21.2500 wiring harness length for proper routing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25555 is part of the Direct Fit Oxygen Sensor line, engineered for applications that require OE-style fit, form, and function. NTK is known for oxygen sensor manufacturing and uses ceramic technology control from raw material through finished product. This sensor is built to meet or exceed OE specifications through manufacturing tests that verify quality and reliability. It is a direct-fit oxygen sensor for Volvo 850 upstream applications, including 1993 Volvo 850 upstream and 1994-1995 Volvo 850 upstream. This part cross-references Bosch 13373 and DENSO Auto Parts 234-4182 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed upstream oxygen sensor\u003c\/li\u003e\n\u003cli\u003eRestoring proper air-fuel feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eAddressing check engine light concerns related to sensor performance\u003c\/li\u003e\n\u003cli\u003eCorrecting drivability issues caused by inaccurate exhaust oxygen readings\u003c\/li\u003e\n\u003cli\u003eReplacing a sensor with worn heater or signal circuit performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eCompatible With 1993 Volvo 850, upstream, and 1994-1995 Volvo 850, upstream. Verify the threaded mounting style, 4-wire connector layout, and harness length before installation. Use the vehicle’s OE-equivalent application details, including the 1993 chassis note where applicable, to confirm the correct sensor location.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors. This sensor is extensively tested during manufacturing to support OE-level quality and reliability.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731438035125,"sku":"BFPZ-25555","price":76.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25555_Fro.jpg?v=1794296303","url":"https:\/\/www.partcatalog.com\/products\/ntk-25555-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}