2009 Audi A4 Quattro 1-Pc Oxygen Sensor Downstream 4-Pin A-Premium APOS0363

A-Premium Aftermarket Oxygen Sensor: Multiple Options Available
With A-Premium, you have a variety of expertly engineered Oxygen Sensor options to suit your vehicle's needs. Each replacement is backed by a 3-Year unlimited mileage warranty for peace of mind. Use our Vehicle Selector to explore multiple options and find the perfect fit.

• Installation Position: Downstream
• 1-PC A-Premium Oxygen Sensor
• With extensive industry experience, A-Premium guarantees superior parts.
• Integrates cutting-edge advancements for optimal reliability.
• Custom-fit to align perfectly with your vehicle's original specifications.
• Developed to surpass standard reliability expectations.

Uncomplicated Preservation & Transition. A-Premium Oxygen Sensors are crafted for an easy changeover, with a replacement guideline of 60,000 miles to uphold fuel performance and emission control.
Superior Monitoring Capabilities. The oxygen sensor keeps a close eye on the exhaust's oxygen levels, allowing the engine to function with superior combustion, which enhances fuel use and lessens emissions.