when i was juiced i used solenoids from a local electric ware house. they were big like the golf cart ones but one was good per pump up to 50 volts and they were rebuildable. sold for 90 a piece.(similar ones the ones summit racing sells) never had one fail and my ride was a daily. not to mention after i uninstalled juice i sold the whole setup to a friend who currantly uses setup and he never had a problem with them. thats almost 5 years of daily use now. who could say they got 5 years from a 10 dollar solenoid. no body i know especially since the ones i got with my cce kit lasted not even 1 week after i installed them.( they got stuck and burned up, luckily befor the pump motor did or destroyed my pump head or gear)