Fit For Saab 9-5 Fit For Buick Fit For Regal Fit For Chevy 7.03357.01 Auto Car Turbocharger Solenoid Valve. OEM NO. : 19168559 12649146 12657023 The function of turbocharger actuator solenoid valve is to control the boost pressure by overcoming the spring pressure and separating the exhaust flow. Function: The turbocharger actuator solenoid valve works to regulate boost pressure by counteracting spring tension and diverting exhaust gas flow. Direct Replacement: It serves as a direct replacement part, featuring quick, hassle-free installation without complex procedures, enabling convenient mounting and usage while greatly cutting down your time and labor costs., Manufacturer: EHYSYN