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Generators & Regulators: Description

Bosch alternators are conventional 3-phase, self-rectifying type alternators. Bosch 55 through 75 amp alternators use 6 diodes (3 positive and 3 negative) connected to stator windings to rectify current. Bosch 80 and 90 amp alternators use 14 diodes, instead of 6.

All alternators use 3 exciter diodes connected to stator windings. These diodes turn off the alternator indicator light and supply power to the voltage regulator while the engine is running. Bosch regulators are transistorized solid state and integral with alternator.

ALTERNATOR APPLICATION

Model Volts/Amps (1) Manufacturer's Part No.
190D 14/55 006 154 89 02
190E 14/65 006 154 95 02
300 D, CD & SD 14/55 005 154 74 02
300 TD 14/65 005 154 98 02
380 SE 14/80 006 154 55 02
500 Series 14/80 006 154 73 02
(1) Bosch alternator part numbers are preceded by the numbers 0 120.