Buy OEM Lexus Part # 2571050022 (25710-50022, 2571050020, 2571050021). Secondary Air Injection Pump Check Valve. Air Injection System Check Valve - Repair or Replace A failed air injection solenoid or

VALVE ASSY, AIR SWITCHING

Fits GX 470, LX 470

Air Injection System Check Valve - Repair or Replace
A failed air injection solenoid or secondary air valve will often have no noticeable symptoms beyond a check engine light, but it does cause your Lexus to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Lexus genuine parts.