{"product_id":"rear-oxygen-sensor-pe12-18-86z-mazda-atenza-mazda6","title":"Rear Oxygen Sensor PE12-18-86Z for Mazda Atenza Mazda6","description":"\u003cp data-start=\"110\" data-end=\"189\"\u003e\u003cstrong data-start=\"110\" data-end=\"189\"\u003eReplacement rear oxygen sensor designed for Mazda Atenza \/ Mazda6 vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"191\" data-end=\"549\"\u003eThis rear O2 sensor, also called a downstream oxygen sensor or lower oxygen sensor, monitors oxygen levels in the exhaust system and sends data to the engine control unit to help support proper air-fuel ratio control and emissions performance. A faulty oxygen sensor may cause poor fuel economy, increased emissions, rough idle, or check engine light issues.\u003c\/p\u003e\n\u003cp data-start=\"551\" data-end=\"723\"\u003ePart number \u003cstrong data-start=\"563\" data-end=\"578\"\u003ePE12-18-86Z\u003c\/strong\u003e is listed by Mazda parts sources as an oxygen sensor with rear \/ lower positioning for Mazda applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"725\" data-end=\"737\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"739\" data-end=\"1092\"\u003e\n\u003cli data-section-id=\"1iwsg5u\" data-start=\"739\" data-end=\"782\"\u003eRear oxygen sensor \/ downstream O2 sensor\u003c\/li\u003e\n\u003cli data-section-id=\"1emeozr\" data-start=\"783\" data-end=\"820\"\u003eHelps monitor exhaust oxygen levels\u003c\/li\u003e\n\u003cli data-section-id=\"wljov\" data-start=\"821\" data-end=\"877\"\u003eSupports proper fuel-air mixture and emissions control\u003c\/li\u003e\n\u003cli data-section-id=\"o46mpj\" data-start=\"878\" data-end=\"927\"\u003eSuitable for Mazda Atenza \/ Mazda6 applications\u003c\/li\u003e\n\u003cli data-section-id=\"1896yxe\" data-start=\"928\" data-end=\"969\"\u003eReplacement for part number PE12-18-86Z\u003c\/li\u003e\n\u003cli data-section-id=\"5m6p6l\" data-start=\"970\" data-end=\"1031\"\u003eIdeal for replacing faulty, worn, or damaged oxygen sensors\u003c\/li\u003e\n\u003cli data-section-id=\"1hfg5jb\" data-start=\"1032\" data-end=\"1092\"\u003eDesigned for stable signal output and reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"mk6ne3\" data-start=\"1094\" data-end=\"1117\"\u003eCompatible Vehicles\u003c\/h3\u003e\n\u003cul data-start=\"1119\" data-end=\"1224\"\u003e\n\u003cli data-section-id=\"ey19tq\" data-start=\"1119\" data-end=\"1133\"\u003eMazda Atenza\u003c\/li\u003e\n\u003cli data-section-id=\"1tl3qod\" data-start=\"1134\" data-end=\"1142\"\u003eMazda6\u003c\/li\u003e\n\u003cli data-section-id=\"hdx6jh\" data-start=\"1143\" data-end=\"1224\"\u003eOther Mazda models using part number PE12-18-86Z, please verify before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"yvhz0e\" data-start=\"1226\" data-end=\"1249\"\u003eReplace Part Number\u003c\/h3\u003e\n\u003cul data-start=\"1251\" data-end=\"1276\"\u003e\n\u003cli data-section-id=\"1aawoeb\" data-start=\"1251\" data-end=\"1264\"\u003ePE12-18-86Z\u003c\/li\u003e\n\u003cli data-section-id=\"1aoitfn\" data-start=\"1265\" data-end=\"1276\"\u003ePE121886Z\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5t7ttf\" data-start=\"1278\" data-end=\"1298\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cul data-start=\"1300\" data-end=\"1324\"\u003e\n\u003cli data-section-id=\"194vlvi\" data-start=\"1300\" data-end=\"1324\"\u003e1 × Rear Oxygen Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"kcavlr\" data-start=\"1326\" data-end=\"1342\"\u003eFitment Note\u003c\/h3\u003e\n\u003cp data-start=\"1344\" data-end=\"1538\"\u003ePlease confirm your original part number, sensor position, connector type, engine size, and vehicle compatibility before ordering. Fitment may vary by year, trim, engine type, and market region.\u003c\/p\u003e\n\n\u003csection class=\"product-faq\"\u003e\n  \u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this Oxygen Sensor fit my vehicle?\u003c\/summary\u003e\n    \u003cp\u003eThis product is intended for vehicles that match the OE part number and application details shown on this page. Please compare your original part with PE12-18-86Z, MAZDA6, and verify the connector, mounting points, and fitment for Mazda before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich part number should I use to confirm compatibility?\u003c\/summary\u003e\n    \u003cp\u003eUse the OE or replacement part number on your original component first. For this listing, compare against: \u003cstrong\u003ePE12-18-86Z, MAZDA6\u003c\/strong\u003e. Matching the part number is usually more reliable than matching only the model name or year range.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms can this part help solve?\u003c\/summary\u003e\n    \u003cp\u003eA failing Oxygen Sensor may be related to check engine light, poor fuel economy, emissions faults, or oxygen\/lambda sensor codes. Always confirm the diagnosis with scan-tool data, fault codes, or a technician inspection before replacing the part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat should I check before purchase?\u003c\/summary\u003e\n    \u003cp\u003ePlease check the OE number, connector shape, pin count, mounting points, size, and vehicle application. Small differences in plugs, brackets, sensor position, or production year can affect fitment even when the vehicle model looks similar.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a new replacement part?\u003c\/summary\u003e\n    \u003cp\u003eYes, this listing is for a new replacement auto part supplied by Staceedress Auto Parts. Keep the original part until installation is complete so you can compare the shape and connector side by side.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e","brand":"Staceedress Auto Parts","offers":[{"title":"Default Title","offer_id":47008384450713,"sku":null,"price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/2847\/8105\/files\/2_bfaa4f94-0876-44c6-838f-c327da31d620.jpg?v=1777510513","url":"https:\/\/staceedress.com\/products\/rear-oxygen-sensor-pe12-18-86z-mazda-atenza-mazda6","provider":"Staceedress Auto Parts","version":"1.0","type":"link"}