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1277022822 / 1275100944 Hyundai Tucson 2016 Lambda Oxygen Sensor OEM.
Genuine Lambda / Oxygen Sensor (O2 Sensor) for Hyundai Tucson 2016 petrol and diesel variants, depending on configuration.
OEM reference numbers: 1277022822 and 1275100944.
This sensor measures oxygen content in the exhaust gases and sends accurate data to the ECU, allowing precise fuel–air mixture control. A failing lambda sensor can cause:
Increased fuel consumption
Poor engine performance
Check Engine Light
High emissions
This is a tested OEM part, removed from a fully operational vehicle.
| Make | Model | Year | Position | Part Numbers | Notes |
|---|---|---|---|---|---|
| Hyundai | Tucson | 2015–2018 | Lambda / O2 Sensor | 1277022822 / 1275100944 | Confirm upstream/downstream position by original part |
(Always check the part number on your original sensor to ensure correct position: upstream (pre-cat) or downstream (post-cat).)
Genuine OEM Hyundai Lambda Sensor
Ensures accurate air–fuel mixture control
Helps maintain optimal performance and emissions
Direct plug-and-play replacement
Tested and guaranteed working
Used OEM sensor
Fully tested and functioning
Clean connectors and intact wiring
After installation, clear O2 sensor fault codes
Some models may require ECU adaptation/reset
Hyundai Tucson O2 Sensor, 1277022822, 1275100944, Hyundai Lambda Sensor, Tucson 2016 Oxygen Sensor, OEM Hyundai Exhaust Sensor, Upstream O2 Sensor Tucson, Downstream O2 Sensor Hyundai
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