Robinair RA20010 12VDC Solenoid. This part was made by Parker under the part number 539436. Robinair changed vendors. They are now made by CEME under the part number 578471. You will received the current CEME Solenoid  

We do not take returns on this part. To many people want to troubleshoot with the part and return it after it did not fix the problem.