I got one that goes on main pin at RB's it's a offbrand and decent quality, it was less then half of what dealer wanted for name brand, came with everything but hoses. Worth considering for a older machine especially if you don't use thumb a lot. I couldn't justify $10k+ thumb not including install on a $60k machine, think I paid about $4,200. The only very important thing to consider is make sure since the Volvo pin is floating that the thumb pin is too, the pin cannot turn with the thumb. I made that mistake, mine turned with the thumb not ~200 hours and it wore out the coupler bores and groves into the main pin, about a $2k mistake. To be safe I had the coupler tapped for grease on both sides when I got it fixed. Other then that worked great, though I haven't put it back on since fixing coupler. It's handy for demos, but it's also nice not having one on for dirt work.