Thank you so much for getting back to me! You guys have been more helpful in 1 day then all of my kubota dealers combined in more then a month.The M62, M59, L48 (mine), L47, L45(?).....all use the same "quick connect" coupler.
The K7870 coupler is on my L48 and I have two excavator buckets for it.
K7875 (24"), and K7873 (16").
My new 28" root ripper (Ex quick connect also) has been shipped, and is expected to arrive Friday.
Those weld on ears from Walmart are correct for use with the Kubota excavator buckets.
The same ears are also available all over E-bay.
You can choose to buy just the ears, or the ears already welded to a mounting plate.
Looks like the Walmart ears are already welded to the mounting plate, which IMHO is a good thing.
I do have one final question. One of the online third party sellers emailed me last night and said this:
"Our coupler that is referenced is a match for the K7870.
However, the M62 takes a K7543 coupler
The pin diameters are different from a KX121 and a M62"
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