GC4Z-9424-A, GC4Q9424AB, GC4Z9424A, BC3Z-9424-F. GC4Q9424AB, BC3Q9F479-AC, BC3Q9F479AC, BC3Q9F479-AD, BC3Q9F479AD. Type: Intake Manifold. High Strength: The intake manifold design has excellent strength to ensure that it can withstand the automotive engine vibration load, throttle and sensor inertia force load, intake pressure pulsation load.