I am looking to install a grapple on my existing bucket & found this thread searching 3rd function. Thanks for the links for the 3-part installation, it's even my exact tractor.
I'm not as well versed in hydraulics as I would like, but near as I could tell the kit in the video use this solenoid valve: D03S-2B-12D-35 - 12 Volt DC
Is the configuration correct? The rest of the kit looks like a few bracket, the knob/switch & some hoses. Am I missing something?