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How to Identify a Nippondenso Alternator

Updated February 21, 2017

If your automobile alternator is causing problems such as not charging your battery sufficiently, you may want to consider replacing it. The first step in replacing a faulty alternator is identifying the alternator and then buying a suitable replacement. Nippondenso alternators are simple to identify using only a flashlight.

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  1. Open the bonnet of your car.

  2. Use a flashlight to examine the back of your Nippondenso alternator. There are two main types of alternators: three-wire alternators and four-wire alternators.

  3. Check the connectors. Three-wire Nippondenso alternators have two connector slots next to each other at a 90-degree angle. The third connector will be a plastic socket with three slots. Four-wire alternators have three connector slots, two parallel to each other and a third at a 90-degree angle to the first two. The fourth connector is a plastic socket with three slots. Using this information, determine whether your alternator is three-wire or four-wire.

  4. Check for a raised "ND" on the plate. The N and the D are combined. This confirms your alternator is a Nippondenso alternator.

  5. Check for the alternator rating on the plate. The alternator's output rating and model number will be stamped under the "ND." Make a note of the rating and model number.

  6. Use the information you have gathered to obtain the correct replacement alternator at an auto parts store.

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Things You'll Need

  • Flashlight

About the Author

James Stevens has been writing articles for market research companies in the U.K. since 1990. He has written various country profiles for inclusion in comprehensive market reports including Vision One Research and Investzoom Market Research. Stevens holds a General Certificate of Education from Chelmsford College of Further Education.

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