Alternator upgrade

  • Checkov59
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16 Nov 2025 10:21 #23013 by Checkov59
Alternator upgrade was created by Checkov59
Hello,

as 928 Motorsports no longer manufactures it’s upgraded alternator, even though Pelican Parts still shows the listing. Has anyone found an alternative alternator to replace the factory one. Mine recently failed and I was thinking of taking this opportunity to upgrade it to one with a higher output. My car is a 1984 US 928.

Thanks!

Pierre

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17 Nov 2025 20:42 #23014 by rtk11
Replied by rtk11 on topic Alternator upgrade
Roger at 928sRus sells the "uber alternator".  Not sure if it'll work on a 1984 928 (it shows on his website for 1985+), but worth giving Roger a call to inquire.

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19 Nov 2025 10:31 - 19 Nov 2025 10:33 #23016 by Rich928
Replied by Rich928 on topic Alternator upgrade
Hello Pierre,

My mechanic installed a 1987 and newer type alternator in my 1979 Porsche 928.  It required machining a custom part and use of brackets and pulleys from a newer car.  See the attached PDF documents.

Rich
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1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast

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Last edit: 19 Nov 2025 10:33 by Rich928.

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