{"product_id":"o2-sensor-spacer-m18x1-5-stainless-steel-cel-fix-adapter","title":"O2 Sensor Spacer M18x1.5 Stainless Steel CEL Fix Adapter","description":"\n\u003ch2\u003eStop the Check Engine Light — No Catalytic Converter Needed\u003c\/h2\u003e\n\u003cp\u003eTired of that annoying Check Engine Light (CEL) triggered by a failing or removed catalytic converter? This \u003cstrong\u003eM18x1.5 Stainless Steel Oxygen Sensor Spacer\u003c\/strong\u003e is the go-to solution for off-road builds, performance upgrades, and exhaust modifications. The built-in mini stainless steel filter diffuses exhaust gases before they reach your downstream O2 sensor, preventing false \"catalyst below efficiency\" codes from lighting up your dash.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEliminates CEL Codes:\u003c\/strong\u003e Internal stainless mesh filter stops false catalyst efficiency error codes (P0420\/P0430).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e Compatible with any vehicle using a standard M18x1.5 threaded O2 sensor bung — fits most cars, trucks, and SUVs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Stainless Steel Construction:\u003c\/strong\u003e Corrosion-resistant, heat-tolerant, and built to last in harsh exhaust environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Simply thread the spacer into your existing O2 sensor bung, then thread your sensor into the spacer. No special tools required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOff-Road \u0026amp; Performance Ready:\u003c\/strong\u003e Ideal for exhaust upgrades, catback systems, and off-road performance builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFine Workmanship:\u003c\/strong\u003e Precision-machined threads for a secure, leak-free fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eM18 x 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eApprox. 46mm \/ 2.16 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensor Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eStandard M18x1.5 O2 sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 \/ 2 \/ 3 \/ 4 \/ 5 × Oxygen Sensor Spacer (select your quantity)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-60mpa-pressure-gauge-s60h-diesel-injector-nozzle-tester-8000psi\"\u003e0-60MPa Pressure Gauge for S60H Diesel Injector Nozzle Tester\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ppr-universal-water-pipe-tap-half-three-quarter-inch-alloy-steel\"\u003e1\/2\" \u0026amp; 3\/4\" PPR Water Pipe Tap – Alloy Steel Anti-Corrosion\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHelpful Resource\u003c\/h3\u003e\n\u003cp\u003eWant to understand more about vehicle emissions systems and how oxygen sensors work? Visit the \u003ca href=\"https:\/\/www.epa.gov\/greenvehicles\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. EPA Green Vehicles resource\u003c\/a\u003e for authoritative information on vehicle emissions and sensor standards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow ±1–5mm variance due to manual measurement. Colors may appear slightly different on screen depending on your monitor's calibration settings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does an M18x1.5 oxygen sensor spacer do?\u003c\/h4\u003e\n\u003cp\u003eA: An M18x1.5 oxygen sensor spacer (also called a CEL fix adapter) sits between your exhaust bung and the downstream O2 sensor. Its built-in stainless steel filter diffuses exhaust gases so the sensor reads a lower oxygen content, preventing the vehicle's ECU from triggering a \"catalyst below efficiency\" Check Engine Light (fault codes P0420 or P0430).\u003c\/p\u003e\n\u003ch4\u003eQ: Will this O2 sensor spacer fit my car?\u003c\/h4\u003e\n\u003cp\u003eA: This spacer is universally compatible with any vehicle that uses a standard M18x1.5 threaded oxygen sensor — which covers the vast majority of cars, trucks, and SUVs. Simply check that your downstream O2 sensor bung uses M18x1.5 threads before ordering.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this oxygen sensor spacer legal for road use?\u003c\/h4\u003e\n\u003cp\u003eA: This product is designed and marketed for off-road and performance use. Using a CEL fix spacer on a street-registered vehicle may not comply with local emissions regulations. Always check your local laws before installing exhaust or emissions-related modifications on a road-registered vehicle.\u003c\/p\u003e\n\u003ch4\u003eQ: How many spacers do I need?\u003c\/h4\u003e\n\u003cp\u003eA: Most vehicles have one downstream oxygen sensor per catalytic converter location. If your vehicle has two catalytic converters (common on V6\/V8 engines), you may need two spacers. This listing is available in packs of 1 to 5 so you can order exactly what you need.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does an M18x1.5 oxygen sensor spacer do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An M18x1.5 oxygen sensor spacer (also called a CEL fix adapter) sits between your exhaust bung and the downstream O2 sensor. Its built-in stainless steel filter diffuses exhaust gases so the sensor reads a lower oxygen content, preventing the vehicle's ECU from triggering a \\\"catalyst below efficiency\\\" Check Engine Light (fault codes P0420 or P0430).\"}}, {\"@type\": \"Question\", \"name\": \"Will this O2 sensor spacer fit my car?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This spacer is universally compatible with any vehicle that uses a standard M18x1.5 threaded oxygen sensor — which covers the vast majority of cars, trucks, and SUVs. Simply check that your downstream O2 sensor bung uses M18x1.5 threads before ordering.\"}}, {\"@type\": \"Question\", \"name\": \"Is this oxygen sensor spacer legal for road use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This product is designed and marketed for off-road and performance use. Using a CEL fix spacer on a street-registered vehicle may not comply with local emissions regulations. Always check your local laws before installing exhaust or emissions-related modifications on a road-registered vehicle.\"}}, {\"@type\": \"Question\", \"name\": \"How many spacers do I need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Most vehicles have one downstream oxygen sensor per catalytic converter location. If your vehicle has two catalytic converters (common on V6\/V8 engines), you may need two spacers. This listing is available in packs of 1 to 5 so you can order exactly what you need.\"}}]}\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:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Car \u0026 Auto\", \"item\": \"https:\/\/oasis-select.com\/collections\/car-auto\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"O2 Sensor Spacer M18x1.5 Stainless Steel CEL Fix Adapter\", \"item\": \"https:\/\/oasis-select.com\/products\/o2-sensor-spacer-m18x1-5-stainless-steel-cel-fix-adapter\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"4pcs","offer_id":47723827101801,"sku":"14:350852#4pcs","price":57.12,"currency_code":"USD","in_stock":true},{"title":"5pcs","offer_id":47723827134569,"sku":"14:10#5pcs","price":57.12,"currency_code":"USD","in_stock":true},{"title":"2pcs","offer_id":47723827167337,"sku":"14:29#2pcs","price":57.12,"currency_code":"USD","in_stock":true},{"title":"3pcs","offer_id":47723827200105,"sku":"14:691#3pcs","price":57.12,"currency_code":"USD","in_stock":true},{"title":"1pcs","offer_id":47723827232873,"sku":"14:193#1pcs","price":57.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S342bf131e5744a5fb72feb5ad6b2ae75M.webp?v=1782404521","url":"https:\/\/oasis-select.com\/products\/o2-sensor-spacer-m18x1-5-stainless-steel-cel-fix-adapter","provider":"Oasis Select","version":"1.0","type":"link"}