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Rectifier for BOSCH  63 Products

Discover our wide range of diode bridges for Bosch alternators

To find the right diode bridge for your Bosch alternator, enter the alternator part number in the search bar on our site.

If you need information about purchasing a diode bridge for a Bosch alternator, please contact our team with the part number of your alternator!

1 - 40 of 63 items
1 - 40 of 63 items

The diode bridge, also called a rectifier, is an extremely important component in the operation of your alternator. It must produce electrical energy to power the engine, and therefore allow the battery to be recharged. Its role is to change alternating current into direct current.
How to test a diode bridge for alternator?

You can test your diode bridge with a multimeter on the diode function.

If the voltage displayed is less than 100 mv or if it is passing in both directions, your diode bridge can be considered defective.

In general, when the diode bridge is defective, it is preferable to change the entire diode bridge. Indeed, the unit replacement of the diodes is accessible to people who have knowledge of automotive mechanics and electricity.