{"product_id":"m18x1-5-stainless-steel-oxygen-sensor-bung-weld-nut-plug-kit","title":"M18x1.5 Oxygen Sensor Bung Weld Nut Plug Kit | Stainless Steel","description":"\u003ch2\u003eM18x1.5 Stainless Steel Oxygen Sensor Bung Weld Nut \u0026amp; Plug Kit\u003c\/h2\u003e\n\u003cp\u003eInstall or relocate an oxygen sensor exactly where you need it with this heavy-duty \u003cstrong\u003eM18x1.5 stainless steel oxygen sensor bung, weld nut, and plug kit\u003c\/strong\u003e. Built for custom exhaust fabrication, this universal fitting makes sensor installation on headers, downpipes, exhaust pipes, and custom exhaust systems quick and straightforward — no specialist tools required.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e Compatible with any standard 18mm exhaust pipe — suits virtually all M18x1.5 threaded oxygen sensor applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes weld bung, M18x1.5 nut, and plug cover — everything you need for a clean, professional installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStainless Steel Construction:\u003c\/strong\u003e Corrosion-resistant and heat-tolerant stainless steel ensures long-lasting durability in high-temperature exhaust environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Designed to streamline weld-in oxygen sensor fitting, saving time during custom exhaust builds or sensor upgrades.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for Custom Builds:\u003c\/strong\u003e Perfect for installing wideband or narrowband oxygen sensors on custom exhaust headers, downpipes, cat-back systems, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug Included:\u003c\/strong\u003e The integrated plug allows you to cap off unused bung ports cleanly, preventing leaks when the sensor position is not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M18 x 1.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel (silver-plated iron thread compatible)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × Oxygen Sensor Bung Weld Nut \u0026amp; Plug Set\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e As shown in product images\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow a 2–5% dimensional variance due to manual measurement. Actual color may vary slightly from product images depending on screen calibration and lighting conditions.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/4-pack-deer-whistle-wildlife-alert-devices-vehicle\"\u003e4-Pack Deer Whistle Wildlife Alert Devices for Vehicles\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-car-wrap-magnetic-holders-anti-scratch-vinyl-film-grip\"\u003e10-Pack Car Wrap Magnet Holders | Anti-Scratch Vinyl Film Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.fueleconomy.gov\/feg\/drive.shtml\" target=\"_blank\" rel=\"noopener\"\u003eFuelEconomy.gov driving efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What thread size is this oxygen sensor bung?\u003c\/h4\u003e\n\u003cp\u003eA: This weld bung uses the standard M18 x 1.5 thread pitch, which is the universal thread size for most automotive oxygen sensors — both wideband and narrowband types.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this kit suitable for stainless steel exhaust systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The bung and nut are made from stainless steel, making them fully compatible with stainless steel exhaust systems as well as mild steel pipes. The silver-plated iron thread ensures a secure, heat-resistant weld and connection.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this bung to cap off an unused sensor port?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The kit includes a plug cover specifically designed to seal the bung port when an oxygen sensor is not installed, preventing exhaust leaks at unused ports on custom exhaust setups.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this kit suitable for custom exhaust builds?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — this bung kit is ideal for custom headers, downpipes, cat-back exhausts, and any fabrication project where you need to add or relocate an oxygen sensor position on your exhaust system.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What thread size is this oxygen sensor bung?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This weld bung uses the standard M18 x 1.5 thread pitch, which is the universal thread size for most automotive oxygen sensors — both wideband and narrowband types.\"}}, {\"@type\": \"Question\", \"name\": \"Is this kit suitable for stainless steel exhaust systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The bung and nut are made from stainless steel, making them fully compatible with stainless steel exhaust systems as well as mild steel pipes. The silver-plated iron thread ensures a secure, heat-resistant weld and connection.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this bung to cap off an unused sensor port?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The kit includes a plug cover specifically designed to seal the bung port when an oxygen sensor is not installed, preventing exhaust leaks at unused ports on custom exhaust setups.\"}}, {\"@type\": \"Question\", \"name\": \"Is this kit suitable for custom exhaust builds?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — this bung kit is ideal for custom headers, downpipes, cat-back exhausts, and any fabrication project where you need to add or relocate an oxygen sensor position on your exhaust system.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Car, Motorcycle \u0026 Bike\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/collections\/car-motorcycle-bike\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"M18x1.5 Oxygen Sensor Bung Weld Nut Plug Kit | Stainless Steel\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/products\/m18x1-5-stainless-steel-oxygen-sensor-bung-weld-nut-plug-kit\"}]}\u003c\/script\u003e","brand":"QXL","offers":[{"title":"Default Title","offer_id":46964064223431,"sku":"\u003cnone\u003e","price":18.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8314\/9255\/files\/S4249f332f3434a488ed479a3fdb466f6E.webp?v=1786055936","url":"https:\/\/qxlcustomerservice.com\/products\/m18x1-5-stainless-steel-oxygen-sensor-bung-weld-nut-plug-kit","provider":"QXL","version":"1.0","type":"link"}