New JD n283804 18-inch Boron disk blades
Fits John Deere 750, 1560, 1565, 1590, 1690, 1835, 1850, 1860, 1890, 1895, 1990, H540F, H550F, H560F, N530, N530C, N530F, N536, N536C, N540, N540C, N540F, N542, N542C, N543F, N550, N560, N560F
$42 each. 96 total. Buy all for $4,000
I also have new JD depth springs and new standard boots.