Product description How does a secondary air pump work? The secondary air pump draws in ambient air and injects it into the exhaust manifold downstream of the exhaust valves. There is a separate integrated air filter if the air is not drawn in from the intake system but rather directly from the engine compartment. Features & Benefits: · Each Air Pump is a direct-fit OE replacement that ensures ease of installation · High-quality materials withstand extreme conditions Undergoes extensive testing to ensure reliability O.E.M Replace: 0857055 / 0857063 / 090541417 / 090542922 / 090570372 / 090571892 / 0A918E6053F / 857055 / 857063 / 90541417 / 90542922 / 90570372 / 90571892 / A918E6053F Safety:Yes Anti-Corrosion:Yes Location:Front Inner Anti-Rust:Yes Material:Advanced Aviation WaterProof:Yes Color:Black Compatible Vehicles: For OPEL : Brand Model Type Years CCM KW HP Engine Body…