Gotcha, thanks! How about a rebuild kit for the stock version? Mine operates fine, it just needs the ring at the end of the plunger replaced. It leaks pretty severely when the engine controls are switched off. I took it apart to lube it like other threads have said to do. I found the ring at the end of the plunger is visibly deteriorated. I'd hate to pay $300+ to replace the whole unit for a <$1 part. I may try some o-rings form the parts store. If anyone thinks that's a bad idea please let me know.
....I have a brand new fan clutch solenoid for a HMMWV for trade or sale.
Thanks!
Everyone here has been super helpful! Much appreciated and so informative across the site!!!