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Hitachi EC12 air compressor

Hitachi EC12 air compressor Parts

Here are the diagrams and repair parts for Hitachi EC12 air compressor, as well as links to manuals and error code tables, if available.

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Browse Parts for EC12 Power Tools

  • Hitachi Screw for Hitachi EC12 - Part 881-551

    Air compressor diagram

    Hitachi Screw

    Part #881-551

    The manufacturer no longer makes this part, and there's no substitute part

  • Hitachi Screw for Hitachi EC12 - Part 881-412

    Air compressor diagram

    Hitachi Screw

    Part #881-412

    The manufacturer no longer makes this part, and there's no substitute part

  • Hitachi Joint Fittng for Hitachi EC12 - Part 881-552

    Air compressor diagram

    Hitachi Joint Fittng

    Part #881-552

    The manufacturer no longer makes this part, and there's no substitute part

  • Hitachi Joint for Hitachi EC12 - Part 881-576

    Air compressor diagram

    Hitachi Joint

    Part #881-576

    The manufacturer no longer makes this part, and there's no substitute part

  • Hitachi Rod for Hitachi EC12 - Part 881-561

    Air compressor diagram

    Hitachi Rod

    Part #881-561

    The manufacturer no longer makes this part, and there's no substitute part

  • Hitachi Crankshaft for Hitachi EC12 - Part 881-562

    Air compressor diagram

    Hitachi Crankshaft

    Part #881-562

    The manufacturer no longer makes this part, and there's no substitute part

  • Tension Rod (2) for Hitachi EC12 - Part 881-480

    Air compressor diagram

    Tension Rod (2)

    Part #881-480

    The manufacturer no longer makes this part, and there's no substitute part

  • Ball Bearing for Hitachi EC12 - Part 6203ZZ

    Air compressor diagram

    Ball Bearing

    Part #6203ZZ

    The manufacturer no longer makes this part, and there's no substitute part

  • Ball Bearing for Hitachi EC12 - Part 6205UCE

    Air compressor diagram

    Ball Bearing

    Part #6205UCE

    The manufacturer no longer makes this part, and there's no substitute part

  • Rubber (4) for Hitachi EC12 - Part 881-583

    Air compressor diagram

    Rubber (4)

    Part #881-583

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your air compressors

Choose a symptom to see related air compressor repairs.

Main causes: lack of electrical power, check valve failure, bad pressure switch…

Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve pla…

Main causes: bad safety valve, pressure switch failure…

Main cause: faulty output air pressure regulator…

Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain va…

Main cause: bad air tank pressure gauge…

Main causes: loose air tube fitting connections, bad check valve, faulty safety valve, damaged or corroded air tank, bad…

Most common repair guides to help fix your air compressors

These step-by-step repair guides will help you safely fix what’s broken on your air compressor.

How to replace an air compressor pressure switch

How to replace an air compressor pressure switch

You can replace a broken air compressor pressure switch in about 45 minutes. …

Repair time and Difficulty

 45 minutes or less
How to rebuild an air compressor pump

How to rebuild an air compressor pump

If the air compressor won't fill the tank with compressed air, rebuild the pump using these steps in about 45 minutes. …

Repair time and Difficulty

 45 minutes or less
How to replace an air compressor check valve

How to replace an air compressor check valve

You can replace a defective air compressor check valve in about 10 minutes.…

Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your air compressors

Use the advice and tips in these articles and videos to get the most out of your air compressor.

How to reduce air compressor noise

How to reduce air compressor noise

Find out how to reduce air compressor noise.…

The unseen dangers of air compressors

The unseen dangers of air compressors

Learn about the possible dangers associated with using an air compressor and how you can reduce the risks of property da…

How to maintain an oil-lubricated air compressor

How to maintain an oil-lubricated air compressor

See how to perform routine maintenance on your oil-lubricated air compressor.…

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