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Alternator

The alternator keeps the battery in a constant state of charge anytime the engine is running. If your lights are dimming or you hear excessive bearing noise around the alternator, chances are that it's time for a replacement.
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Hitachi Voltage Regulator - BMW E31 E32 E34 E36
Hitachi Voltage Regulator - BMW E31 E32 E34 E36
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48850064
Part#: 12311747920
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$ 37.99 USD
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$ 37.99 USD
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This voltage regulator is a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to maintain a safe range of vehicle voltage, thereby protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator.
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Denso Alternator
Denso Alternator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Denso - Corporate Logo
T#:384619
Part#: 12317616119
Back Ordered
$ 442.99 USD
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$ 442.99 USD
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Denso Brand 

When power starts to fade in your BMW, chances are your alternator is losing power. The warning light should illuminate, warning you of such a failure. Replace with a new unit today. Do not get stuck on the side of the road.

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Hitachi Voltage Regulator - BMW E88 N52
Hitachi Voltage Regulator - BMW E88 N52
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48815477
Part#: 12317550469
Ships in 6 Business Days
New Item
$ 79.99 USD
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$ 79.99 USD
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Supplies power to your car's electronics and recharges the battery.
Alternator - 210A
Alternator - 210A
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Denso - Corporate Logo
T#:17140151
Part#: 12317616126
Back Ordered
$ 521.99

This product was last offered at the strikethrough price on
05-07-2026

$ 506.99 USD
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$ 506.99 USD
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