The Caterpillar solenoid valve coil 324-2579 for C4.4 C3.4 engine 416E 414E 420E 424 is a flow-control valve from Caterpillar. It opens, closes, or throttles a line carrying fluid or air, giving the system precise control over flow and pressure. It is commonly in hydraulic power units, pneumatic control panels, and industrial process piping.
