Compatible with JD Tillage(s) 310, 315, 330, 331, 335, 340, 350, 355, 360, 370, 375, 510, 512, 637, 640, 650, 670, 1700. Replaces JD OEM nos N241234, B34212. Fits 1-1/4″ axle with 11″ spacing.