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There are two ways to correct a faulty alternator, the first (and easiest) is to simply replace the whole unit, an expensive but foolproof option, or, rebuild the existing alternator, replacing just the parts required to bring it back to full effective operation.
Whichever course of action you decide the parts you may require are listed below:

021120406B
3168827A00
3161448B00
0831610053
3177606B00
3161527E00
0155008903
015500890B
2273027A04
2273027A05
2273327A05
2123106B00
0821110283
0831620103
083162010B

Add as many parts as you wish to the same shopping cart, a new Service Kit A 3178027X50 for example, and still only pay the same single fixed price shipping cost.

Please be aware that this component may have other applications in the Suzuki model range.