D7NN10316B Years:1965&Up Voltage Regulator. Fits Ford Tractors:230A, 231, 2310, 233, 234, 2600, 2600V, 2610, 2810, 2910, 333, 334, 335, 340, 340A, 340B, 3600, 3600V, 3610, 3910, 4110, 420 Indust/Const, 445 Indust/Const, 445A Indust/Const, 450 Indust/Const, 4600, 4600SU, 4610, 5110, 515 Indust/Const, 530A, 531, 535 Indust/Const, 540 Indust/Const, 540A Indust/Const, 540B Indust/Const, 545 Indust/Const, 545A Indust/Const, 550 Indust/Const, 555 Indust/Const, 555A Indust/Const, 555B Indust/Const, 5600, 5610, 5700, 5900, 6410, 650, 6500 Indust/Const, 655 Indust/Const, 655A Indust/Const, 6600, 6610, 6700, 6710, 6810, 7410, 7500 Indust/Const, 755 Indust/Const, 755A Indust/Const, 755B Indust/Const, 7600, 7610, 7700, 7710, 8000, 8400, 8600, 8700, 9000, 9200, 9600, 9700, A62 Wheel Loader, A64 Wheel Loader, A66 Wheel Loader, TW10, TW20, TW30. Technical Data: Four prong (two male-two female) connector for Motorola style alternators With/external regulator. Fits Ref#'s D5NN10300D and D5NN10300E. If regulator is not used with correct alternator, unit will not charge. Non-adjustable.