Need Help Identifying!!

John Saeli

Well-known Member
This disc measures 6" dia. has 20 splines. Marked on it "580K", but doesn't look like any disc in the 580K parts book that I saw. Anyone got an idea what it might fit?
a260488.jpg
 
sure looks like the disc brakes off international tractors. from supers to the 660. pretty sure the 660 had a bigger disc then the M's or W6's. i will measure.
 
One series of the 580K uses a caliper & brake pads, & the other series uses a 16 spline disc for a parking brake. This mystery disc has 20 splines.
 

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