FORD: Quadrant stop kit. Improved unit, includes wing nut 350890S36 and flat washer. Replaces 9N521. Fits 1939-1964 models, except majors. Tractors: 9N, 2N, 8N, NAA, Jubilee, 501, 600, 601, 700, 701, 800, 801, 900, 901, 2000, 4000. MASSEY FERGUSON: Quadrant stop kit, includes wing nut and flat washer. Tractors: TE20, TO20, TO30. -- QSK3FF | Standard Pack -- 1