{"product_id":"stainless-bros-o2-sensor-bung-ss304-saddle-type-round-cast","title":"Stainless Bros O2 Sensor Bung SS304 Saddle Type (Round) - Cast","description":"\u003cdiv\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e604-00100-4000\u003c\/span\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eStainless Bros O2 Sensor Bung SS304 Saddle Type (Round) - Cast\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eStainless Bros 604-00100-4000\u003c\/strong\u003e SS304 Saddle Type O2 Sensor Bung is the best high-quality weld-in solution for adding oxygen sensor ports to custom exhaust systems, downpipes, or headers. This cast stainless steel round saddle bung provides precise 90-degree mounting, excellent weldability, and corrosion resistance for accurate AFR readings in high-temperature turbo, NA, or racing applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSS304 Cast Construction:\u003c\/strong\u003e Durable stainless steel with superior corrosion resistance and heat tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaddle Type Design:\u003c\/strong\u003e Round saddle base for strong, leak-free welds on curved tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard M18x1.5 Thread:\u003c\/strong\u003e Compatible with most wideband and narrowband O2 sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Welding:\u003c\/strong\u003e Thick cast body and saddle shape simplify alignment and welding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e604-00100-4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel (Cast)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003eM18x1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSaddle (Round Base)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Angle\u003c\/td\u003e\n\u003ctd\u003e90-Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eNatural Stainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSingle O2 sensor bung – weld-in design for custom exhaust fabrication\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEstimated time: 20-40 minutes, moderate difficulty, requires TIG welding\u003c\/li\u003e\n\u003cli\u003eCut hole in tubing, align saddle, TIG weld around base – ensure proper sensor orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eCustom Exhaust Systems, Downpipes, Headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Uses\u003c\/td\u003e\n\u003ctd\u003eWideband O2 Sensor Installation, Turbo Builds, Exhaust Fabrication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose Stainless Bros?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSpecialist in high-quality stainless exhaust components and fittings\u003c\/li\u003e\n\u003cli\u003ePrecision cast SS304 saddle bungs for strong, leak-free welds\u003c\/li\u003e\n\u003cli\u003eTrusted by fabricators for reliable performance in custom builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is this cast or welded? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Cast stainless steel saddle bung for superior strength and weldability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What thread size? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Standard M18x1.5 – fits most Bosch, AEM, Innovate wideband sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Can it be used for narrowband sensors? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, compatible with both narrowband and wideband O2 sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is welding required? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, saddle bung must be TIG welded to exhaust tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS\/FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock, ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Official Stainless Bros retail packaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Stainless Bros","offers":[{"title":"Default Title","offer_id":44339417972815,"sku":"STB604-00100-4000","price":9.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/stainlessbros-604-00100-4000-bung.png?v=1768317328","url":"https:\/\/www.blackopsautoworks.com\/products\/stainless-bros-o2-sensor-bung-ss304-saddle-type-round-cast","provider":"Black Ops Auto Works","version":"1.0","type":"link"}