Description Economy Levelling Link - Fits Ford 8N, 9N, 600, 700; Massey-Ferguson 20, 30, 35 - Can replace Ford NCA577A. 18 1/2" CLOSED, 25" OPEN LENGTH, 7/8" NF THREAD. This item is a suitable alternative for the following: 873-16166, LB152, AEC0NN577AB, A-EC0NN577AB, 56-01, 00152, SL152, SL1052