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Genuine OEM Mitsubishi Parts & Accessories At Wholesale Prices

How to Rebuild a Mitsubishi Alternator

Got a bad alternator and looking to fix it? You can rebuild it.

We don’t recommend rebuilding an alternator, though. An alternator has a lot of little parts and rebuilding one is a long and complicated process. One little mistake could mess up the entire project. It’s much easier to just buy a new alternator. Skip ahead to the end of this article to read more about buying a new alternator.

With that said, if you’re feeling confident about rebuilding an alternator, you came to the right place.

Below, you will find a step-by-step tutorial on rebuilding a Mitsubishi alternator.

Rebuilding a Mitsubishi Alternator

Alternator location

Image Credit: Andrew Camarata

Before starting the project, you need to buy the replacement component(s). Aside from alternator covers, bolts, and brackets, Mitsubishi doesn’t make OEM alternator components. You’d have to buy aftermarket components, which can cause the alternator to fail again. Parts stores rarely sell alternator components (except brushes), so you might have a hard time finding the component(s) you need. This is another reason why we recommend replacing the entire alternator instead of rebuilding it.

Here’s a general overview of how to take apart an alternator:

  1. Disconnect the battery.
  2. Disconnect the main power cable and the control harness from the alternator.
  3. Relieve tension on the serpentine belt.
  4. Loosen the bolts on the alternator if needed.
  5. Remove the alternator from the engine bay.
  6. Remove the bolts holding the alternator together.
  7. Pull the alternator covers apart. You may need to apply a little bit of force if it's rusted shut.

Next, you need to identify the malfunctioning component and then replace it. Depending on what the component is, you may need to disassemble the entire assembly. It’s quite a complicated task that requires a lot of expertise in alternators.

Buying a New Alternator


Image Credit: Andrew Camarata

Rebuilding an alternator takes about 2 hours, not counting the time spent looking for parts. If you factor in the value of your time, you might figure that it’s just easier to buy an OEM alternator, which is quick and easy.

A brand new OEM Mitsubishi alternator can cost a lot of money, but it’s not always the case. If you buy one from a shop or Mitsubishi dealership, you’ll fork over an amount that’s about 30% above wholesale price. It’s much cheaper to buy a genuine OEM alternator online. Our online shop, for example, sells genuine OEM Mitsubishi alternators at wholesale pricing. Check out our catalog of alternators to see what we have to offer.

Here’s a list of our best selling OEM alternators: