Great Plains 15" Seed Disc Assembly, 5/8" Bolt, 4MM Thick; 820-287C

15" x 4mm HD Disc Opener Assembly, Has 53mm OD Bearing x 5/8" ID. Uses RLP205GPC Cap. Fits late model drills with heavy duty openers and planter row units built 1999 and after. Replaces 404-121S, 820-287C, 404-072S Fits late model drills with heavy duty openers and planter row units built 1999 and after. Replaces Great Plains # 820-287C, 404-072S and 404-121S. Osmundson Blade