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24SI and 28SI Alternator Core Identification

Use this page to help identify the correct core group for your core returns.  If you know the part number, please visit our e-catalog for model family identification. 

24SI Alternator Core

24SI regulator is flat

24SI regulator is flat

24SI casting fins are attached (pad mount only)

24SI casting fins are attached (pad mount only)

24SI pad mounts are round

24SI pad mounts are round

More 24SI Information

28SI Alternator Core

28SI regular has fins

28SI regular has fins

28SI casting fins are short (pad mount only)

28SI casting fins are short (pad mount only)

28SI pad mounts are square

28SI pad mounts are square

More 28SI Information

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