D8NN9278AA Years:1965&Up Sending Unit, Oil Pressure. Fits Ford Tractors:6600,8700,3910, 655D,3610,8530,3930,3600,8340, TW30, 455D,4600,9200, 230A,8210,5000,333, 445A,8000, TW15,8400, 555C, 555B,515,445,4110,3000,7740, 675D, 555E,532,7010, TW20,7600,3310, 545A, 340A,7000, 345D, 555D,4130,4500,8600,4610, 340B,8730,7910,335, 655A, 545D,234, 540A,9700, 675E, 655C,555, 540B,540,775,7840, TW10,7700, 7610S,535, 545C, 4600SU,3500,9000,231, 4610SU,2600,655, TW5, 575D,6640,5640,6700, 445D, 6610S,5600, 345C, 555A,531,545, TW25,4000,450,6000,2610,5700,3400,2000,334,7810,9600,233,3230,4830, 260C, 250C, TW35,8830,8240,8010. Replaces Ford Part Numbers:D8NN9278BA, D8NN9278BB, D8NN9278BC, D8NN9278BD, F1NN9278AA, 81873524.