{"product_id":"guziko-o2-oxygen-sensor-for-honda-trx420-trx500-2014-2019-direct-fit-oe-replacement","title":"GUZIKO O2 Oxygen Sensor for Honda TRX420 TRX500 (2014–2019) - Direct Fit, OE Replacement","description":"\u003cp\u003e\u003cstrong\u003eGUZIKO O2 oxygen sensor is a direct-fit replacement for select Honda TRX420 and TRX500 2014–2019 models, restoring accurate exhaust oxygen readings for proper engine air-fuel control.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Honda Rancher, Foreman or Rubicon is showing rough running, poor fuel economy, or a check-engine light related to the oxygen sensor, this GUZIKO replacement is engineered to match the original equipment fit and electrical characteristics. It replaces OE part numbers 36531-HR3-A22 and 36531-HR3-A21 and is intended to plug into the factory harness for the listed model years.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Honda models and years will this sensor fit?\u003c\/h3\u003e\n\u003cp\u003eThis GUZIKO O2 sensor is built to fit specific Honda four-wheelers produced between 2014 and 2019. Confirm your vehicle model and existing part number before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda TRX420 Rancher: 2014, 2015, 2016, 2017, 2018, 2019\u003c\/li\u003e\n  \u003cli\u003eHonda TRX500 Rancher: 2015, 2016\u003c\/li\u003e\n  \u003cli\u003eHonda TRX500 Foreman: 2015, 2016, 2017, 2018, 2019\u003c\/li\u003e\n  \u003cli\u003eHonda TRX500 Rubicon: 2015, 2016, 2017, 2018, 2019\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM numbers 36531-HR3-A22 and 36531-HR3-A21\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this oxygen sensor affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eThe oxygen sensor measures exhaust oxygen content and sends voltage signals to the engine control unit so the ECU can adjust fuel delivery. A correctly working sensor helps the engine run smoothly, supports stable acceleration, and contributes to better fuel use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides real-time oxygen readings to the ECU\u003c\/li\u003e\n  \u003cli\u003eHelps maintain optimal air-fuel mixture under varying loads\u003c\/li\u003e\n  \u003cli\u003eCan reduce hesitation and rough idling caused by faulty sensors\u003c\/li\u003e\n  \u003cli\u003eSupports consistent engine response and fuel efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build quality and durability features?\u003c\/h3\u003e\n\u003cp\u003eGUZIKO manufactures the sensor using heat-resistant materials and a design meant to withstand exhaust temperatures and road conditions. The unit undergoes quality checks before shipment to ensure electrical stability and long service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-temperature tolerant sensing element and housing\u003c\/li\u003e\n  \u003cli\u003eFactory-style connector and wiring for secure fit\u003c\/li\u003e\n  \u003cli\u003eTested for signal stability and electrical continuity\u003c\/li\u003e\n  \u003cli\u003ePackaged to protect the sensor during shipping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation, part numbers and after-sale support?\u003c\/h3\u003e\n\u003cp\u003eInstallation instructions are not included; professional inspection and installation are recommended. Always verify the part number on your vehicle before purchasing and reach out to GUZIKO for support if you encounter issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-check existing part number: 36531-HR3-A22 or 36531-HR3-A21\u003c\/li\u003e\n  \u003cli\u003eNo installation hardware or instructions are provided with the sensor\u003c\/li\u003e\n  \u003cli\u003eGUZIKO offers a 12-month service warranty for functional issues\u003c\/li\u003e\n  \u003cli\u003eCustomer support response typically within 12 hours for after-sale questions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This GUZIKO O2 oxygen sensor is for ATV owners, mechanics and service shops maintaining Honda TRX420 or TRX500 models from the listed years who need a reliable, direct-fit replacement part. It’s suitable for riders seeking to restore proper engine control after a failed sensor or to replace a sensor indicated by diagnostic trouble codes. If you’re uncertain about fitment or installation, consult a professional technician to confirm compatibility and complete the installation safely.\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 GUZIKO sensor fit my Honda TRX420 Rancher 2016?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. GUZIKO lists compatibility for the TRX420 Rancher 2016. Verify your current part number before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is installation hardware included with the sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Installation instructions and hardware are not included; professional installation is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GUZIKO","offers":[{"title":"Default Title","offer_id":55165945282903,"sku":"B09J16V49Y","price":37.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/guziko-o2-sensor-front-view.jpg?v=1790360025","url":"https:\/\/britishgarage.co.uk\/products\/guziko-o2-oxygen-sensor-for-honda-trx420-trx500-2014-2019-direct-fit-oe-replacement","provider":"British Garage","version":"1.0","type":"link"}