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2015-18 Cayenne
8L engines from 1990-1993
Complete set: Includes all gaskets needed for engine overhaul
Brand Elring Klinger Part Number 921
0L4 Audi S4 2005–2008 4
Bosch Audi Upstream Oxygen Sensor (Air/Fuel Ratio) 17031 Cylinder Head Gasket 2015-18 CayenneThe Bosch Air Fuel Ratio Sensor (part 17031) is designed for Audi A8 Quattro models with the 6. 3L W12 engine (2012 2014). It measures the air to fuel ratio in the exhaust, providing real time feedback to the ECU for optimal combustion efficiency and lower emissions. Key Features & Benefits Advanced sensing technology: Provides accurate air fuel ratio readings for precise engine control. Direct replacement: OE quality sensor ensures seamless