A-AH213832-AI Joint Kit, Coarse Knife SectionsOne New Aftermarket Replacement Joint Kit, Coarse Knife Sections Fits John Deere 900 Series Combine Headers This coarse knife sections joint kit is a sickle cutterbar component used on Fits John Deere 900 Series grain platform headers. Coarse knife sections are recommended for harvesting soybeans and other coarse grain crops in dry conditions, providing aggressive cutting action along the sickle bar. The kit supplies the hardware and sections needed