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BMW Starters and Alternators


We supply alternators and starter motors for the complete range of  BMW


The vehicles covered are: BMW 1 series, BMW 3 series, BMW 5 series, BMW 6 series, BMW 7 series, BMW M series, X1, X3, X5, X6, Z1, Z3, Z4, Z8


Our range consists of 61 different alternators for BMW and 32 different starter motors

We supply for models from 1975 to the present day



Alternator powers/amps vary from 35amp to 200amp.


Starter motor powers range from 0.8kw to 2.2kw


We supply replacement alternators and starter motors for the original equipment makes of Bosch, Marelli and Valeo that are fitted to BMW vehicles

Clutch Pulley’s


Clutch Pulley’s are fitted to the later models of BMW alternators, they are prone to failure.

The failing of a clutch pulley can occur for a number of reasons, the two main reasons are:

            Failure of the cars automatic tensioner

            Belt flap (from the fan belt)


In addition to the above, a clutch pulley can fail due to incorrect fitting of the stretch belts.

How do I know if my clutch pulley has failed?

            The alternator could be excessively noisy in operation

            The shaft would be worn (although not easily visible)



Customers often query how the cars automatic tensioner can cause a clutch pulley to fail. We always advise them that clutch pulley and tensioner are serviceable items and should be changed at regular intervals. (This information is according to OE manufacturers specifications)