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e30 bmw

e30 m20b23 alternator upgrades

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just looking for bolt in options to replace the standard alternator with was looking at running a few more electrics fan,stereo etc and just looking for 140ampish options just wondering if anyone done this before or reference a thread with some actually helpful information like which alternator and which parts need modifying

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Any alternator for an M20Bxx engined model should bolt straight on to your engine. 

From experience there are a number of different sized ones that all fit, the 325i one was pretty big but I don’t know the electrical rating sorry. 

The M20 5-Series might be bigger still as they had more electrics in them.

Check your wiring is in good Nick and should be ok to update.

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Will an e36 alternator fit the e30?

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