{"product_id":"bosch-wideband-oxygen-sensor-17025-direct-fit-afr-sensor-fast-response-durable-construction","title":"Bosch wideband oxygen sensor 17025 — direct-fit AFR sensor, fast response \u0026 durable construction","description":"\u003cp\u003e\u003cstrong\u003eThe BOSCH 17025 is a premium wideband oxygen (A\/F) sensor engineered for precise air-fuel ratio measurement and reliable direct-fit replacement in high-performance and aftermarket wideband systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt to meet the demands of performance tuning and emissions-aware diagnostics, the Bosch 17025 delivers a fast, stable output that goes beyond the simple rich\/lean switching of conventional sensors. Its advanced sensing element measures actual air-to-fuel ratios, and the construction emphasizes durability and plug-and-play compatibility with many aftermarket wideband kits and OE-style harnesses.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this sensor improve air\/fuel monitoring compared with a standard O2 sensor?\u003c\/h3\u003e\n\n\u003cp\u003eThe 17025 uses a wideband sensing element to provide a continuous, accurate readout of the air\/fuel ratio instead of a binary rich-or-lean signal. This makes it suitable for tuning, data logging, and closed-loop control where exact AFR values are required. Its response is faster and more linear across a broad range of mixtures.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWideband element reads exact A\/F values, not just lean\/rich states.\u003c\/li\u003e\n  \u003cli\u003eConsistent output across stoichiometric and rich mixtures.\u003c\/li\u003e\n  \u003cli\u003eFaster response time for improved tuning and feedback control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the BOSCH 17025 robust and long-lasting?\u003c\/h3\u003e\n\n\u003cp\u003eBosch designed the 17025 with a reinforced sensing structure and protective tube to withstand high-temperature exhaust environments and contaminants encountered in performance applications. A seared protection tube and thorough functional testing enhance resistance to wear and early failure. Threads arrive pre-coated with anti-seize, reducing the risk of damage during installation and removal.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDurable sensing housing and protection tube for extended service life.\u003c\/li\u003e\n  \u003cli\u003e100% functional quality testing to verify performance before shipping.\u003c\/li\u003e\n  \u003cli\u003eAnti-seize pre-applied on threads for safer installs and removal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the 17025 easy to install and compatible with my setup?\u003c\/h3\u003e\n\n\u003cp\u003eThe sensor is built as a true direct-fit device with OE-style connectors and harness compatibility to simplify installation in many aftermarket wideband kits and vehicles. It eliminates adapter hassles in most cases and reduces wiring modifications. Confirm connector and thread size against your application before purchase to ensure fitment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOE-type connectors and harness for plug-and-play replacement.\u003c\/li\u003e\n  \u003cli\u003ePre-coated threads and standard sizing for straightforward mounting.\u003c\/li\u003e\n  \u003cli\u003eDesigned for integration with aftermarket wideband controllers and tuners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The BOSCH 17025 is aimed at tuners, performance shops, and enthusiasts who need accurate, repeatable air\/fuel data for engine tuning, dyno work, or advanced diagnostics. It suits vehicles upgraded with aftermarket wideband controllers, turbo or forced-induction builds, and anyone replacing worn or slow conventional sensors with a wideband-capable unit. If you require dependable AFR readings, long-term durability, and straightforward installation, this Bosch wideband sensor is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the BOSCH 17025 replace a narrowband O2 sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces sensors in wideband setups but isn’t a direct functional substitute for all narrowband systems; check your controller compatibility first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do the threads come pre-coated with anti-seize?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the 17025 arrives with anti-seize already applied to the threads for easier installation and removal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":55170862088535,"sku":"B009J3EXGQ","price":104.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/bosch-17025-front-view-sensor.jpg?v=1790434838","url":"https:\/\/britishgarage.co.uk\/products\/bosch-wideband-oxygen-sensor-17025-direct-fit-afr-sensor-fast-response-durable-construction","provider":"British Garage","version":"1.0","type":"link"}