{"product_id":"sangyue-oxygen-o2-sensor-set-2pcs-upstream-downstream-for-chrysler-jeep-dodge-matched-pair-for-2001-2020-engines","title":"Sangyue Oxygen (O2) Sensor Set — 2PCS Upstream \u0026 Downstream for Chrysler Jeep Dodge, Matched Pair for 2001–2020 Engines","description":"\u003cp\u003e\u003cstrong\u003eThe Sangyue 2PCS Oxygen O2 Sensor set includes both upstream and downstream sensors designed to replace factory units for compatible Chrysler, Jeep and Dodge vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pair of oxygen sensors (front and rear) is intended to restore accurate air-fuel monitoring after a worn or failed OEM sensor. Supplied as a matched upstream + downstream set, the sensors are manufactured to fit specific 2001–2020 model-year Chrysler, Jeep and Dodge engines that use 2.0L–5.9L configurations. The bundle helps your vehicle’s engine control module get reliable oxygen readings for fuel-trim and emissions management without swapping sensors individually.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine sizes does this Sangyue O2 sensor set fit?\u003c\/h3\u003e\n\u003cp\u003eThe Sangyue two-piece kit is built for many Chrysler, Jeep and Dodge models across 2001–2020 model years. Fitment covers multiple engine displacements and includes both older Rams and modern Compasses and Journeys. Always cross-check your vehicle’s OEM part numbers or use the seller’s fitment tool to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChrysler 200 (2011–2014) 2.4L\u003c\/li\u003e\n  \u003cli\u003ePT Cruiser (2003–2010) 2.4L\u003c\/li\u003e\n  \u003cli\u003eJeep Compass \u0026amp; Patriot (2011–2017) 2.0L \/ 2.4L\u003c\/li\u003e\n  \u003cli\u003eDodge Journey (2011–2020) 2.4L and many Dodge Caravan, Neon, Dart, Avenger, Caliber models\u003c\/li\u003e\n  \u003cli\u003eVarious Dodge Ram and Dakota van applications (2001–2003) with 3.9L–5.9L engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do upstream and downstream sensors in this set differ and why buy both?\u003c\/h3\u003e\n\u003cp\u003eUpstream (pre-catalyst) sensors measure exhaust oxygen to help the engine control module maintain proper fuel mixture. Downstream (post-catalyst) sensors monitor catalytic converter efficiency. Buying both ensures consistent sensor behavior and prevents mismatch-related drivability or diagnostic issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUpstream sensor: direct feedback for fuel trims and ignition control\u003c\/li\u003e\n  \u003cli\u003eDownstream sensor: monitors converter performance and emissions\u003c\/li\u003e\n  \u003cli\u003eMatched set reduces diagnostic confusion and uneven sensor aging\u003c\/li\u003e\n  \u003cli\u003eSold together to simplify replacement and maintain OEM-like readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality assurances and installation considerations should I know?\u003c\/h3\u003e\n\u003cp\u003eSangyue ships the sensors with a one-year unlimited mileage quality guarantee, offering coverage against manufacturing defects. Installation typically requires typical automotive tools and a sensor socket; observe torque specs and use anti-seize if recommended by your mechanic. If a check-engine light persists after replacement, a full diagnostic scan should be performed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year unlimited mileage parts guarantee for defects\u003c\/li\u003e\n  \u003cli\u003eRequires oxygen sensor socket or appropriate hand tools\u003c\/li\u003e\n  \u003cli\u003eVerify connector type and wire length before ordering\u003c\/li\u003e\n  \u003cli\u003eClear codes with a scanner after installation or consult a technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these sensors affect emissions testing or engine performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing failed oxygen sensors with properly matched upstream and downstream units helps restore accurate sensor data used by the engine computer. That can reduce incorrect fuel trims and eliminate emissions-related fault codes, which helps your vehicle meet inspection criteria when sensors were the root cause. These parts are designed as replacement components rather than performance upgrades.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores correct oxygen measurement for fuel control\u003c\/li\u003e\n  \u003cli\u003eCan eliminate oxygen-sensor-related diagnostic trouble codes\u003c\/li\u003e\n  \u003cli\u003eNot intended as a performance enhancement; OEM-style replacement\u003c\/li\u003e\n  \u003cli\u003eHelps return systems to expected emissions behavior when sensors were faulty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Drivers and DIY mechanics owning compatible Chrysler, Jeep or Dodge vehicles who need a matched upstream and downstream replacement set. This Sangyue kit is suited for owners replacing failing oxygen sensors to clear emissions-related codes or to restore proper air-fuel monitoring. If you require exact fitment, confirm your vehicle year, engine size and connector type before purchase or consult a professional installer.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this Sangyue kit include both upstream and downstream sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the package contains two sensors: one upstream (pre-catalyst) and one downstream (post-catalyst).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What vehicles are supported by these Sangyue O2 sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits multiple Chrysler, Jeep and Dodge models from 2001–2020; check the included fitment list for exact engine-year matches.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sangyue","offers":[{"title":"Default Title","offer_id":67588236640441,"sku":"B0C5J8XFM3","price":75.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sangyue-front-packaging-upstream-downstream.jpg?v=1790517391","url":"https:\/\/redleafauto.ca\/products\/sangyue-oxygen-o2-sensor-set-2pcs-upstream-downstream-for-chrysler-jeep-dodge-matched-pair-for-2001-2020-engines","provider":"Redleaf Auto","version":"1.0","type":"link"}