1999 Audi A4 Quattro 2-Pc Oxygen Sensor 4-Pin A-Premium APOS1923

A-Premium Aftermarket Oxygen Sensor: Built for Great Performance
A-Premium Oxygen Sensor is designed to deliver exceptional performance for your vehicle. Backed by our 3-Year unlimited mileage warranty, tough working conditions are no longer a concern.

• Installation Position: Check the fitment chart
• 2-PC A-Premium Oxygen Sensor
• Comprehensively tested for reliable, long-lasting performance.
• Designed for precise installation without the need for modifications.
• Optimized for increased airflow dynamics and sensor reactivity.
• Developed with innovative materials to offer robust resistance to wear and corrosion.

Precision Engineered for Compliance. With an emphasis on meeting and surpassing OEM Quality Standards, A-Premium Oxygen Sensors ensure exceptional reliability and conformity with emission system protocols.
Long-lasting Protection. These A-Premium Oxygen Sensors feature resilient coatings and wiring that are resistant to heat, moisture, and debris, focusing on sustained performance and sensor integrity over time.