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521) 2010–2013 1
Includes 3 Chains: Three chains are required per transmission for complete replacement
Installation: Bolts in with no modifications needed
Improves electrical system performance: Prevents fluctuations and extends component life
0V6 Audi A4 Quattro 2006 3
Audi Downstream Oxygen Sensor – Denso REIN AUTOMOTIVE 521) 2010–2013 1This Denso downstream oxygen sensor monitors catalytic converter efficiency and helps maintain proper emissions control. It is a direct replacement for multiple Audi models. Fits Audi Q7, A8 Quattro, A7 Quattro, and A6 Quattro from 2015 to 2019. Key Features & Benefits Heated Sensor: Quick activation for accurate readings. Direct Fit: Threaded mounting for simple installation. OEM Cross Reference: Equivalent to Audi part number 06E906265AE. Improves