Tappet, 2.06". For 3-cylinder, 4-cylinder, and 6-cylinder diesel engines. Tractors: 2000, 3000, 4000, 5000, 7000, (8-1965 to 1975); 2600, 3600, 4100, 4600, 5600, 5700, 6600, 6700, 7600, 7700, (1975 to 1981); 2610, 3610, 4110, 4610, 5610, 6610, 6710, 7610, 7710, (1981 to 10-1991); 3230, 3430, 3930, 4130, 4430, 4830, 5030, (3-1990 to -); 5640, 6640, 7740, (11-1991 to -); 8000, 8700, 9000, 9700, TW10, TW20, TW30, (1968 to 1982); 7810, 7910, 8210, TW5, TW15, TW25, TW35, (1982 to 2-1990); 8530, 8630, 8730, 8830, (3-1990 to -); 7840, 8240, 8430, (11-1991 to -). Replaces C7NN6500B.