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OE-Quality Materials: Formulated to meet original equipment specifications
This product also goes by these part numbers: 428100
and mounting hardware
valve clearance should be checked
Professional installation is recommended to ensure proper sealing and belt alignment
PIERBURG Secondary Air Pump for Audi A8 / S8 (2000-2003) pair OE-Quality Materials: Formulated to meetThe secondary air injection pump injects fresh air into the exhaust stream to further burn off exhaust gas, aiding catalytic converter warm up. This Pierburg pump is a direct replacement for the original part, restoring emissions performance for Audi A8 and S8 models with the 4. 2L V8 engine from 2000 to 2003. Key Features & Benefits OEM Replacement: Direct fit for Audi A8 and S8 with 4. 2L V8 (2000 2003). Restores Performance: Replace a failing pump
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