{"product_id":"koso-oxygen-sensor-plug-27-5728","title":"Koso Oxygen Sensor Plug - Harley \u0026 Indian V-Twin","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Koso\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eKoso builds instrumentation, gauges, heated grips and electronic accessories for motorcycles, with digital displays used widely in the custom V-twin scene.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eWhen you're upgrading your V-twin exhaust or tuning your engine, an active oxygen sensor might not be part of the plan. This Koso Oxygen Sensor Plug is purpose-built to seal off the O2 sensor port when the sensor is removed or bypassed. It's an essential component for maintaining exhaust system integrity and preventing unwanted error codes.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eSeals O2 sensor ports after removal or bypass\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003ePrevents exhaust leaks and maintains system integrity\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eHelps avoid triggering error codes\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eLightweight aluminum construction\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eFits standard V-twin O2 sensor ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRemoving or bypassing an oxygen sensor is a common step for performance V-twin builds, especially when installing aftermarket exhaust systems or custom engine tunes. This Koso plug ensures that the now-vacant O2 sensor port is properly sealed, preventing exhaust leaks that can compromise engine performance and trigger fault codes. Its straightforward design makes it a simple solution for a critical task, helping you maintain a clean and efficient exhaust setup.\u003c\/p\u003e\u003ch3\u003eSecure Your Exhaust System\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned to seal standard V-twin O2 sensor ports\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum construction for durability\u003c\/li\u003e\n\u003cli\u003ePrevents exhaust leaks after sensor removal\u003c\/li\u003e\n\u003cli\u003eHelps avoid error codes associated with missing O2 sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSeamless Integration for Your Build\u003c\/h3\u003e\u003cp\u003eThis oxygen sensor plug is a small but mighty component in any V-twin customization. It's particularly useful when you're running open exhaust systems or have moved to a closed-loop tuning strategy that no longer relies on O2 sensor input. Ensure your exhaust remains sealed and your engine management system runs smoothly without unnecessary fault warnings. Confirm your bike uses a standard O2 sensor port for a perfect fit.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Koso\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e BG001801\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 2.75 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 4.25 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 0.55 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Canada\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill this plug eliminate my check engine light after O2 sensor removal?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis plug seals the port to prevent exhaust leaks, but some bikes may still throw a code. A tuner or fuel controller is often needed to clear the error permanently on bikes without an active oxygen sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDoes this fit all V-twin motorcycles?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eIt fits standard V-twin O2 sensor ports. Verify your bike uses a standard port before ordering, as some custom or older V-twins may differ. Please confirm fitment with Shop by Bike.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this difficult to install?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eInstallation is typically straightforward, requiring basic hand tools to thread the plug into the existing O2 sensor port. No special modifications are usually needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hardware\/Fasteners\/Fittings\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Koso\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/koso\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Koso Oxygen Sensor Plug - Harley \u0026 Indian V-Twin\",\"item\":\"https:\/\/vtwinbikers.com\/products\/koso-oxygen-sensor-plug-27-5728\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will this plug eliminate my check engine light after O2 sensor removal?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This plug seals the port to prevent exhaust leaks, but some bikes may still throw a code. A tuner or fuel controller is often needed to clear the error permanently on bikes without an active oxygen sensor.\"}},{\"@type\":\"Question\",\"name\":\"Does this fit all V-twin motorcycles?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It fits standard V-twin O2 sensor ports. Verify your bike uses a standard port before ordering, as some custom or older V-twins may differ. Please confirm fitment with Shop by Bike.\"}},{\"@type\":\"Question\",\"name\":\"Is this difficult to install?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Installation is typically straightforward, requiring basic hand tools to thread the plug into the existing O2 sensor port. No special modifications are usually needed.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Koso","offers":[{"title":"Default Title","offer_id":53035024285807,"sku":"27-5728","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_9b9feeb1-99c0-425a-9e84-cf158b4a77d0.png?v=1779559518","url":"https:\/\/vtwinbikers.com\/products\/koso-oxygen-sensor-plug-27-5728","provider":"Vtwinbikers","version":"1.0","type":"link"}