How much is this worth

[Lucky7]

So one day I was going somewhere and I saw a snowmobile at the end of someones driveway. Looks like he just took the engine out. So me not being to far from my house I went back grabbed some tools ans started taking parts of it. I was able to snag a disk brake and caliper before the guy came out and told me I had to take the whole thing or nothing at all. So the parts ended up lying in my garage for about 2-3 years. Then I am tidying up stuff and I notice the parts. Knowing more about cars, engines,etc. than I did before I saw it said brembo on the brake . Obviously it's not worth thousands of dollars like the ones for cars but I just want to know approximately how much it's worth and how well it would work on a cart.