The Ingersoll Rand 39333604 solenoid valve is a 3-way load/unload solenoid. This valve sends the signal to the inlet valve to either open or close depending on the compressors operation. This was used on several different models of the Ingersoll Rand rotary screw air compressors manufactured from 1998-2002.
Often times this valve will be bad if your compressor does not kick in to build pressure when the lower psi setpoint is reached or it will not idle down when the upper pressure setpoint is reached. This is an OEM part manufactured by Ingersoll Rand. Please contact us with your serial number for confirmation this will work with your compressor.
The following Ingersoll Rand rotary compressors with serial numbers prefixes of "JX" utilized this load solenoid valve: