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NTK is a leading OEM supplier of oxygen sensors
Direct Fit: Pre-formed to match the original hose routing
and VW platforms
plus VW 06A906461
but straightforward with basic tools
Pierburg Air Pump Check Valve Coolant Hose NTK is a leading OEMThe Pierburg Air Pump Check Valve is a direct replacement part for the secondary air injection system in many Audi and Volkswagen models with 1. 8T engines. It prevents backflow of exhaust gases into the air pump, ensuring proper emissions control and system efficiency. As an OEM supplier, Pierburg guarantees a precise fit and long lasting performance. Key Features & Benefits OEM Direct Replacement: Exactly matches the original specifications and