77906262 Lambda sensor HELLA 6PA 009 166 821 before catalytic converter Regulating Probe VOLKSWAGEN: Golf 4, New Beetle Convertible, Polo IV Hatchback

fits e.g. VW Golf IV (1J1) (please check exact vehicle application) Regulating Sensor Fuel Efficiency and Emission Control: Measures oxygen in exhaust gases, optimizing fuel-air mix for lower emissions and better engine efficiency, reduced fuel use and lower overall emissions Built for durability: HELLA Lambda Sensors offer improved overheating protection and increased lifespan and reliability. Precise fit for each engine - please check exact vehicle application. Overheating Protection: HELLA Oxygen Sensor reduces overheating risk, extending sensor life for better engine performance and lower fuel use.