Knife Section 4' Inch Coarse Tooth H163131

H163131 is a coarse-tooth knife section designed for combine header cutterbars. Fits John Deere platform and draper headers in the 600F, 600R, 700-series and 900-series. It provides the cutting edge that slices crop stalks cleanly as the header moves through the field. Worn knife sections cause poor cutting performance, increased fuel use, slower ground speed and higher wear on guards and sickle components. Replacing them restores sharp cutting and reliable harvest efficiency. This is an aftermarket replacement part. All OEM part numbers, model references and brand names are used for identification and compatibility only and do not indicate any affiliation with or endorsement by the original manufacturer.