{"product_id":"necatuo-oxygen-sensor-o2-sensor-for-polaris-rzr-xp-1000-xp4-1000-turbo-oem-fit-direct-replacement","title":"NECATUO Oxygen Sensor O2 Sensor for Polaris RZR XP 1000 \/ XP4 1000 Turbo — OEM-fit Direct Replacement","description":"\u003cp\u003e\u003cstrong\u003eNECATUO 4016021 is a direct-fit OEM-quality oxygen (O2) sensor engineered to restore accurate air-fuel readings on compatible Polaris RZR, General, Sportsman and select Indian Motorcycle models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your vehicle’s check engine light, rough idle, or decreased fuel economy point toward a failing O2 sensor, this NECATUO replacement is built to match OE fit and function while delivering reliable long-term operation. The sensor is manufactured from durable components to withstand off-road vibration, heat cycles, and the contaminants common in ATV\/UTV use. It replaces part numbers 4013979 and 4016021 and fits a wide range of Polaris model years and variants—always verify fitment for your VIN before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this NECATUO O2 sensor fit?\u003c\/h3\u003e\n\u003cp\u003eThis sensor covers many Polaris and related models across multiple years. Fitment includes RZR XP 1000 and XP 4 1000 variants, General and Sportsman models, plus select Indian Motorcycle Chieftain\/Roadmaster and Scout variants listed by the manufacturer. Check the vehicle list and any online fitment tool to confirm compatibility with your exact year and trim.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM numbers 4013979 and 4016021 for cross-reference.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2015–2019 RZR XP 1000, RZR XP 4 1000, and RZR XP 1000 Turbo models.\u003c\/li\u003e\n  \u003cli\u003eFits 2016–2019 General 1000, many Sportsman models, and select 2015–2016 Indian Motorcycle models.\u003c\/li\u003e\n  \u003cli\u003eAlways use VIN or fitment filter to confirm before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this sensor help engine performance and emissions monitoring?\u003c\/h3\u003e\n\u003cp\u003eThe oxygen sensor provides the engine control unit (ECU) with crucial exhaust oxygen data so the fuel injection system can adjust the air–fuel ratio. A healthy sensor helps maintain stable idling, better throttle response, and more consistent fuel economy while enabling accurate emissions diagnostics. It’s not a cure-all but an essential component for the engine management system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate oxygen feedback to the ECU for improved fueling decisions.\u003c\/li\u003e\n  \u003cli\u003eSupports stable idle and throttle response when operating correctly.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain catalytic converter effectiveness by keeping mixtures near target.\u003c\/li\u003e\n  \u003cli\u003eEnables proper emissions monitoring and diagnostic trouble code resolution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what should I expect during replacement?\u003c\/h3\u003e\n\u003cp\u003eNECATUO builds this sensor to match original equipment geometry for straightforward installation using standard O2-sensor sockets. Basic mechanical skills and common tools are usually sufficient, though some models may require removal of heat shields or access panels. If you see persistent codes after install, a professional scan can verify wiring and ECU readiness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to OE dimensions for plug-and-play mounting and wiring compatibility.\u003c\/li\u003e\n  \u003cli\u003eTypical install requires an O2 sensor socket and moderate mechanical aptitude.\u003c\/li\u003e\n  \u003cli\u003eMay need heat shield or exhaust hardware removal on some models.\u003c\/li\u003e\n  \u003cli\u003eIf codes persist, check wiring harness connectors and ECU readiness with a scanner.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat distinguishes NECATUO’s sensor from cheaper alternatives?\u003c\/h3\u003e\n\u003cp\u003eNECATUO emphasizes durable construction and materials selected for long-term service in demanding conditions, which reduces the chance of premature failure in off-road or high-heat environments. The unit is tested for reliable voltage response and fitment accuracy to minimize installation hassles. It offers an economical replacement option without sacrificing core material quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured to match OE fit, form and functional characteristics.\u003c\/li\u003e\n  \u003cli\u003eDurable components aim to resist heat, vibration, and contaminants.\u003c\/li\u003e\n  \u003cli\u003eBacked by part-number cross-reference for correct vehicle matching.\u003c\/li\u003e\n  \u003cli\u003eCost-effective alternative to dealership-priced OEM units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The NECATUO 4016021 O2 sensor is intended for owners and mechanics of Polaris RZR, General, Sportman ATVs\/UTVs and compatible Indian Motorcycle models who need a reliable replacement sensor that closely matches the original equipment. Choose this part if you want an economical, OE-dimensioned sensor to address check-engine-light codes, sluggish fueling behavior, or suspected sensor failure—just confirm fitment for your specific year and trim before purchase.\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: Will this NECATUO sensor clear my check engine light?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If the light is caused by a faulty O2 sensor, replacing it may clear the code. If codes persist, scan for wiring or ECU issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this sensor plug directly into my Polaris harness?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s built to OE dimensions and connector compatibility, but verify fitment for your exact model and year before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NECATUO","offers":[{"title":"Default Title","offer_id":55166613422423,"sku":"B0D182YDPN","price":37.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/necatuao-4016021-front-view.jpg?v=1790369030","url":"https:\/\/britishgarage.co.uk\/products\/necatuo-oxygen-sensor-o2-sensor-for-polaris-rzr-xp-1000-xp4-1000-turbo-oem-fit-direct-replacement","provider":"British Garage","version":"1.0","type":"link"}