Aftermarket loaders in the US are only available specifically for a particular tractor?
In my country, loaders are 90% of the cases, dealer installed options as we don't get OEM loaders. The OEM loaders are kind of rare. Mainly JD offers those.
Therefore, we're "stuck" with aftermarket loaders. Not a bad thing, they're actually very well made.
What happens is that they offer the same loader for all the tractors, just varying the size of the loader, capacity, etc accordingly to the size of tractor.. Then they just build the loader mounts accordingly to the tractor they are mounting the loader on.
For a 35HP tractor, this ends up around $3,000 to $3,300 for a complete installed loader with quick attach, hydraulic self-leveling and a bucket. Options like third function, soft ride, hydraulic quick attach are also available.
This way, they always have loaders for all tractors and just need to fab up the mounts. Yes, it does requires the tractor to be shipped to the loader manufacturer but being a small country, it's not that big of a deal.