Alternator

New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

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T#:25042544

Part#: 12311744567

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Sale - Save 15% $ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 186.99 USD

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$ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 186.99 USD

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New Alternator - 180 Amp

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T#:26438187

Part#: 12317558220

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Sale - Save 15% $ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 250.74 USD

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$ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 250.74 USD

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New Alternator - 120A

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T#:25042543

Part#: 12317501690

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05-03-2026

$ 169.59 USD

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$ 211.99

This product was last offered at the strikethrough price on
05-03-2026

$ 169.59 USD

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Alternator - 180amp

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T#:26438185

Part#: 12317837981

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Sale - Save 15% $ 304.99

This product was last offered at the strikethrough price on
05-03-2026

$ 259.24 USD

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$ 304.99

This product was last offered at the strikethrough price on
05-03-2026

$ 259.24 USD

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Alternator - 120amp

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:25042542

Part#: 12317831436

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05-03-2026

$ 178.39 USD

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$ 222.99

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$ 178.39 USD

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Hitachi Voltage Regulator - BMW E31 E32 E34 E36

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T#:48850064

Part#: 12311747920

Ships in 7 Business Days

$ 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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Voltage Regulator

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T#:596879

Part#: 12321350052

Back Ordered

$ 41.99

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

$ 39.71 USD

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$ 39.71 USD

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If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.

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