Details

• Brand:

  

• SKU:

  1K0-998-262-C

• Positions: Right Rear, Left, Right, Rear Left Rear, Rear Left Right, Rear Right Rear, Rear Right Right, Left Rear, Rear, Rear Right
• Other Names:

  Rear Oxygen Sensor, Oxygen Sen Kit

• Description:

  Genuine Audi Oxygen Sensor is a genuine Audi OEM replacement designed for 2005 Audi A6, A8, and Q7 models, covering critical rear and cylinder-specific positions across the 4.2L and 6.3L engine configurations. This sensor serves as the downstream exhaust oxygen monitor for cylinders 5 through 8 on the A6 4.2L, cylinders 1 through 3 on the A8 6.3L, and rear placement on the Q7 4.2L, delivering precise air-fuel mixture feedback to the engine control unit. Accurate oxygen sensor readings are essential for maintaining proper combustion efficiency, fuel economy, and emissions compliance. Unlike aftermarket alternatives, this genuine Audi part is manufactured to exact voltage output tolerances and thread specifications engineered for these specific engine families, eliminating the signal drift and premature failure common with non-OEM substitutes. A mismatched aftermarket sensor can trigger false fault codes, reduce catalytic converter lifespan, and compromise overall engine performance in ways that are difficult to diagnose. Searched as the Audi A6 A8 Q7 OEM Oxygen Sensor or by the no-dash part number 1K0998262C, this component is also referenced as a Rear Oxygen Sensor or Oxygen Sen Kit. Purchase with confidence from Audi Henderson, an authorized Audi dealer offering this genuine part backed by the manufacturer warranty.

• Replaces:

  79906265, 79906265a

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