Porsche 911 High Output 150A AlternatorCategories: Upgraded Alternators
With so many electrical upgrades pushing old-school charging technology to the limit, Classic Retrofit's upgraded alternator for classic Porsche 911s is the perfect addition to a modern-day classic.
Used in conjunction with our electric A/C, this alternator offers higher levels of cooling without compromising battery voltage.
Fitting to our 911SC demonstrator led to an instant increase of almost 10% in charging voltage. This may not sound like much, but it is huge in voltage terms: even half a volt can transform headlamp brightness, starter efficiency and battery health. For cars running additional electrical items such as bigger stereos and additional lighting, this is a game changer.
The alternator is a direct fit for early cars up to '73. Mid year and late cars require a machined spacer, sold separately.
Note: This alternator is actually rated 180A peak. If fitted with a toothed belt, it may be possible to achieve this but unlikely with the standard pulley setup. We have seen over 145A with no pulley slip using the standard belt.
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This is Classic Retrofit's upgraded high-output alternator for classic Porsche 911s.
Tested at over 145A amps on the standard 911 pulley and belt and with a simple installation process, this UK-manufactured upgrade is the highest output alternator available for your classic Porsche 911. This is a brand new unit, not reconditioned and there is no core charge or exchange.
Note. This is not a 'rewound' Bosch or Valeo. Based on the Denso 6 phase 'hairpin' alternator, the casing has been custom designed to fit all 911 fan housing from 1965 to 1989.