Seller notes

For 2018-2020 Buick Regal TourX Oxygen Sensor Downstream Walker 47766FQCJ 2019 Review Fitment Notes to Ensure Proper Fit Position: DownstreamCondition: NewBrand: WalkerNotes: OE Replacement -- B1S2Sensor Type: HeatedUniversal Or Specific Fit: SpecificWire Quantity: 4Features:Monitors exhaust gases and reduces pollutants for a cleaner environment.Determines the oxygen content of the exhaust gas, monitoring the air fuel ratio for combustion efficiency.Measures oxygen levels to fine-tune air-fuel m...

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