Compatible with Ford Tractor(s) NAA, 2N, 8N, 9N, 501, 541, 600, 601, 611, 620, 621, 630, 631, 640, 641, 650, 651, 660, 661, 671, 681, 700, 701, 740, 741, 761, 771, 800, 801, 811, 820, 821, 840, 841, 850, 851, 860, 861, 871, 881, 900, 901, 941, 950, 951, 960, 961, 971, 981, 2000, 2111, 2120, 2130, 4000, 4030, 4121, 4130 Compatible with Ford Construction & Industrial(s) 541, 1801, 1811, 1821, 1841, 1871, 1881, 2030, 4040, 4140 Compatible with Ford OEM nos 8N6734, 9N6730 For a Used version of this sku use 435387 All new, rebuilt and used tractor parts have a 1-year warranty