15 INCH X 3MM DISC OPENER FOR JOHN DEERE PLANTERSUses SMA52024 dust cap. Will replace AA55927 and AA37474. Interchange 864SMA55927, Net Weight (lbs) 6. 22 Length 15. 00 Width 15. 00 Height 1. 13 Brand AgSmart Make Type Model John Deere Planter 1760 John Deere Planter 1780 John Deere Planter 7000 John Deere Planter 7000 Series John Deere Planter 7100 John Deere Planter 7200 John Deere Planter 7240 John Deere Planter 7300 John Deere Planter 7340 John Deere Planter MaxEmerge John Deere Planter