{"product_id":"walker-250-241077-oxygen-sensor-downstream-downstream-left-or-downstream-right","title":"Walker 250-241077 Oxygen Sensor - Downstream, Downstream Left or Downstream Right","description":"\u003ch2\u003eWalker Products OE Oxygen Sensor for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eWalker Products OE part number 250-241077 is a heated oxygen sensor built for specific downstream applications on select Mercedes-Benz models. It is engineered as an OE-style replacement with the correct fitment position, connector style, and ECU feedback expected by the vehicle.\u003c\/p\u003e\u003cp\u003eFor Mercedes-Benz G550, G63 AMG, C63 AMG, and GLC63 AMG applications, this sensor is specified for downstream locations including right-side and left-side positions where listed. If your vehicle has a fault code, poor fuel economy, elevated emissions, or an illuminated MIL, the oxygen sensor circuit, wiring harness, and connector should be inspected for damage as part of diagnosis.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWalker Products OE oxygen sensor, part number 250-241077\u003c\/li\u003e\n\u003cli\u003eHeated sensor design for downstream exhaust monitoring\u003c\/li\u003e\n\u003cli\u003eSpecific-fit application for listed Mercedes-Benz models\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with female connector\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eWiring harness length: 32.99 in; overall length: 36.54 in\u003c\/li\u003e\n\u003cli\u003eRadiused polygon connector shape for application-specific fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eWalker Products OE is the brand line focused on original-equipment-style engine management and oxygen\/air-fuel sensors. Part number 250-241077 follows that approach with application-specific calibration and physical fitment for the listed Mercedes-Benz downstream positions. It is intended for vehicles that require accurate exhaust feedback to the ECU, helping maintain proper sensor reporting after replacement.\u003c\/p\u003e\u003cp\u003eThis part cross-references no listed aftermarket part numbers for the same application. Search terms commonly used for this part include Mercedes-Benz downstream oxygen sensor replacement, heated O2 sensor for G550, and Walker Products OE 250-241077.\u003c\/p\u003e\u003ch2\u003eWhat This Sensor Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light or MIL related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003eFault codes stored in the ECU for downstream sensor circuits\u003c\/li\u003e\n\u003cli\u003ePoor engine operation caused by inaccurate exhaust feedback\u003c\/li\u003e\n\u003cli\u003eIncreased fuel consumption from incorrect sensor readings\u003c\/li\u003e\n\u003cli\u003eHigher exhaust emissions from a failing oxygen sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify the exact downstream position before ordering: right, left, or general downstream as listed by fitment.\u003c\/li\u003e\n\u003cli\u003eInspect the sensor connector, harness, and nearby wiring for heat damage or corrosion before installation.\u003c\/li\u003e\n\u003cli\u003eConfirm thread size and connector style match the original sensor on the vehicle.\u003c\/li\u003e\n\u003cli\u003eUse the vehicle’s diagnostic trouble codes and service information to confirm the failed component before replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker Products has produced engine management and fuel system components since 1946 and operates as an ISO 9001 \/ TS 16949 certified company. The 250-241077 oxygen sensor is built for the specified OE replacement application on Mercedes-Benz vehicles, including G550, G63 AMG, C63 AMG, and GLC63 AMG fitments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2022-2024 Mercedes-Benz G550, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2022-2024 Mercedes-Benz G63 AMG, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2023 Mercedes-Benz C63 AMG S, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2021 Mercedes-Benz C63 AMG, downstream\u003c\/li\u003e\n\u003cli\u003eFits 2021 Mercedes-Benz C63 AMG S, downstream\u003c\/li\u003e\n\u003cli\u003eFits 2016-2021 Mercedes-Benz G550, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2015-2021 Mercedes-Benz G63 AMG, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2021 Mercedes-Benz GLC63 AMG, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2021 Mercedes-Benz GLC63 AMG S, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2016-2020 Mercedes-Benz C63 AMG, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2016-2020 Mercedes-Benz C63 AMG, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Mercedes-Benz GLC63 AMG, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Mercedes-Benz GLC63 AMG S, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2015-2018 Mercedes-Benz C63 AMG S, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2015-2018 Mercedes-Benz C63 AMG S, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2016-2018 Mercedes-Benz G550, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2017-2018 Mercedes-Benz G550 4x4, downstream right\u003c\/li\u003e\n\u003cli\u003eFits 2017-2018 Mercedes-Benz G550 4x4, downstream left\u003c\/li\u003e\n\u003cli\u003eFits 2015-2018 Mercedes-Benz G63 AMG, downstream left\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":51870202757301,"sku":"DKHD-250-241077","price":101.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_250241077_Fro.jpg?v=1774891567","url":"https:\/\/www.partcatalog.com\/products\/walker-250-241077-oxygen-sensor-downstream-downstream-left-or-downstream-right","provider":"PartCatalog","version":"1.0","type":"link"}