{"product_id":"ntk-25639-oxygen-sensor-upstream-left-or-upstream-right","title":"NTK 25639 Oxygen Sensor - Upstream Left or Upstream Right","description":"\u003ch2\u003eDirect Fit Oxygen Sensor for Ferrari 512 M\u003c\/h2\u003e\u003cp\u003eNTK 25639 is a specific-fit heated oxygen sensor built for direct replacement applications. It is engineered with a threaded mounting design and a 4-wire configuration for precise signal delivery in emission control systems.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpecific-fit oxygen sensor for direct replacement use\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for faster operating response\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e34.75-inch wiring harness length for application-specific routing\u003c\/li\u003e\n\u003cli\u003eNTK 25639 part number for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 25639 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement coverage and OE-style fit, form, and function. As an oxygen sensor for emission control systems, it is built to match the original sensor layout and electrical configuration used in the vehicle. This part number 25639 is a direct-fit solution for the Ferrari 512 M, with fitment listed for upstream right and upstream left positions.\u003c\/p\u003e\u003cp\u003eNTK draws on its background as a major OE oxygen sensor manufacturer and uses controlled ceramic technology in sensor production. Each sensor is extensively tested during manufacturing to support consistent performance and reliability that aligns with OE specifications. For buyers searching for a Ferrari 512 M oxygen sensor or a direct fit oxygen sensor 25639, this part provides a targeted replacement option.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 75-1711, 213-1392) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or failed oxygen sensor\u003c\/li\u003e\n\u003cli\u003eRestoring proper exhaust gas feedback to the engine control system\u003c\/li\u003e\n\u003cli\u003eAddressing check engine light conditions related to sensor output\u003c\/li\u003e\n\u003cli\u003eCorrecting slow or inaccurate air-fuel ratio readings\u003c\/li\u003e\n\u003cli\u003eMaintaining emission control system performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 1995 Ferrari 512 M, upstream right. Fits 1995 Ferrari 512 M, upstream left. Verify the threaded mounting style, wire count, and harness length before installation. Use the listed position and notes to match the correct sensor location on the vehicle. The 18 mm thread diameter and 4-wire heated design should be confirmed against the original part before replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK states that these oxygen sensors are tested during manufacturing to meet or exceed OE specifications. The brand is part of the NGK family of products and is recognized for OE oxygen sensor manufacturing and application coverage.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53731439968437,"sku":"BFPZ-25639","price":89.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25639_Fro.jpg?v=1794296535","url":"https:\/\/www.partcatalog.com\/products\/ntk-25639-oxygen-sensor-upstream-left-or-upstream-right","provider":"PartCatalog","version":"1.0","type":"link"}