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0L4 Audi S3 2015–2018 2
PIERBURG is a renowned OE supplier for German vehicle emissions systems
Suitable for various BMW applications (verify fitment with part number)
A2C1754920001 Included Sealing washer Torque 25 Nm
Countryman
PIERBURG Air Pump Check Valve (Shut-Off Valve) Valve Spring 0L4 Audi S3 2015–2018 2This PIERBURG Air Pump Check Valve (shut off valve) prevents exhaust backflow into the secondary air injection system, protecting the air pump and ensuring proper emissions control. It is a high quality replacement part compatible with select VW Audi 1. 8T engines. PIERBURG's precision engineering ensures reliable sealing and long service life. Key Features & Benefits Prevents Backflow: One way valve stops exhaust gases from damaging the air pump. OEM