{"product_id":"harddrive-o2-sensor-adapter-reducers-18mm-to-12mm-pr-820-0082","title":"Harddrive O2 Sensor Adapter - Reducers 18mm TO 12mm PR — Harley-Davidson Electra Glide, Electra Glide Classic, Electra Glide Ultra Classic (1955-2026)","description":"\u003cp\u003eHarddrive O2 sensor adapter that reduces an 18mm O2 sensor bung to 12mm, allowing you to run an O2 sensor in a performance exhaust that uses a smaller bung location. Essential when upgrading to an aftermarket exhaust on Touring models or pairing earlier exhausts with 18mm bungs onto later bikes.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces 18mm bung to 12mm\u003c\/li\u003e\n  \u003cli\u003eFits Touring models with performance exhausts\u003c\/li\u003e\n  \u003cli\u003eAllows earlier exhausts on later model bikes\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-in installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Harddrive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 52-830\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361115363\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 6.29 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 3.74 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 0.78 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.022 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Taiwan)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles, particularly Harley-Davidson and Indian Touring models using performance exhausts or mixing exhaust generations.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size bung does this adapter fit and reduce to?\u003c\/h3\u003e\n\u003cp\u003eFits an 18mm O2 sensor bung and reduces it to 12mm for compatibility with modern O2 sensors.\u003c\/p\u003e\n\u003ch3\u003eCan I use this to run an older exhaust on a newer bike?\u003c\/h3\u003e\n\u003cp\u003eYes — if you have an older exhaust with an 18mm bung and want to run it on a later model bike with a 12mm sensor, this adapter bridges the difference.\u003c\/p\u003e\n\u003ch3\u003eDo I need a tuner if I install this?\u003c\/h3\u003e\n\u003cp\u003eThe O2 sensor adapter itself does not require a tuner — it simply allows your existing sensor to work in a different bung size. Consult your exhaust and ECU setup for any related tuning needs.\u003c\/p\u003e\n\u003ch3\u003eWhat's the installation process?\u003c\/h3\u003e\n\u003cp\u003eScrew the adapter into the 18mm bung and then install your O2 sensor into the 12mm end. No special tools required.\u003c\/p\u003e\n\u003ch3\u003eIs this the same as buying a new O2 sensor?\u003c\/h3\u003e\n\u003cp\u003eNo — this adapter allows you to reuse an existing O2 sensor by changing the bung size. You keep your current sensor.\u003c\/p\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53035843223663,"sku":"820-0082","price":17.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/1cdf-5cc9e3373452d.jpg?v=1777529687","url":"https:\/\/vtwinbikers.com\/products\/harddrive-o2-sensor-adapter-reducers-18mm-to-12mm-pr-820-0082","provider":"Vtwinbikers","version":"1.0","type":"link"}