Hitachi Air Compressors – Info, Manuals, Service Locations

Published Categorized as Hitachi 9 Comments on Hitachi Air Compressors – Info, Manuals, Service Locations

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This page will provide you with as much relevant information as possible about Hitachi air compressors, where you can seek help, download manuals, and navigate existing problems and solutions available on this site.

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Hitachi Information

Hitachi has been a driving force behind much of the technological progress that has helped increase the quality of life for people across the globe. Hitachi has been steadily growing its market share in dynamic sectors, including energy, railway systems, social infrastructure, and a range of IT systems.

Furthermore, Hitachi has always worked to solve the most pressing challenges facing society through the development of social infrastructure technologies that raise the quality of life. In recent years, Hitachi has contributed to achieving a sustainable society. With a history of pioneering new fields for innovation, Hitachi is now applying this legacy as it leads the charge for a more sustainable future.

It is only natural that the public-facing aspects of a business will remain front of mind for the majority of consumers, and there may still be people who perceive Hitachi primarily as an appliance company. Hitachi’s journey in the U.S. began in 1926 when Hitachi commenced trade by exporting 30 electric fans to the U.S.

In the beginning, it was mainly from the export of infrastructure system products, and Hitachi America, Ltd. was established in 1959. Since then, Hitachi has expanded its sales and manufacturing operations as well as its partners and customers in the U.S.

From building the first-ever Japan-made air compressor in 1911 to introducing the world’s first single-stage oil-free screw air compressor in 1982, and as one of the leading air compressor manufacturers in Japan, Hitachi has always strived for innovation in both product and technology of air compressors.

In 2017, Sullair, a world-renowned air compressor manufacturer, joined the Hitachi Group and with an extended lineup, they are more inspired than ever to bring exceptional support and satisfaction to their valued customers worldwide.

Today, Hitachi’s presence and commitment to the U.S. economy has grown into 17 significant research and development (R&D) facilities, 52 main manufacturing sites, 75 Group Companies, and over 21,200 employees.

Hitachi air compressors are imported into the United States from Japan by Hitachi Koki U.S.A., Ltd. and are sold throughout the U.S. and Canada by the same retail establishments that sell the Hitachi lines of air tools and accessories – outlets like Lowes, Home Depot, and the Canadian Tire chain.

Clearance of outdated and other models of Hitachi air compressors can be found on Amazon and other online outlets as well.

If you are looking for information, support, or parts for your Hitachi air compressor the logical place to start is:

Small Air Compressor
Small Air Compressor

Hitachi Contact Information

To contact Hitachi air compressors USA, use the following information.

Hitachi America LTD.
2535 Augustine Dr,
Santa Clara,
CA 95054
T: +1 (408) 986-6300

Hitachi Air Compressor Manuals

Here is a selection of Hitachi air compressor user manuals you are free to download to your computer.

If you have a digital version of a Hitachi manual that is not listed here, why not upload it via the form below so all can share it?

Hitachi Air Compressors Parts

I have picked out some Hitachi air compressor parts readily available on Amazon.

Hitachi Air Compressor Troubleshooting, Problems & Fixes

There is a list of existing questions and answers shown below. At the end of them is a comment section which you can use to add a new question if yours has not already been answered. For information on Hitachi Air Compressor Oil – Choosing Oil, How Much to Use & Changing Oil please visit our guide!

On the way down to post at the end of this page, please read the existing Hitachi air compressor posts for an answer to your compressor problem. If you are familiar with a Hitachi air compressor and have some advice on an existing post, please do so. Let other Hitachi air compressor users know of your experience with this brand.

Below are more pages with questions, answers, and information about specific Harbor Freight air compressors problems:

FAQs (Frequently Asked Questions)

Are Hitachi air compressors good?

Hitachi air compressors are known for being good-quality powerful air compressors. They are often very reliable compressors that offer great years of service and optimum performance.

Who makes Hitachi air compressors?

Hitachi air compressors are made by Hitachi themselves, imported into America from Japan by Hitachi Koki U.S.A and distributed all over North America.

If you have any questions about Hitachi compressors, please leave a comment below, with photos if applicable, so that others can help you!

By Aidan Weeks

A passionate Mechanical Engineer with endless enthusiasm for fluid power - building off the back of over 18 years of high quality contribution and discussion stimulated by Bill Wade here at About Air Compressors. With both practical and theoretical experience in pneumatics and hydraulics, I'm putting my knowledge to work - and working my grey-matter through my research, assistance and publishing work here at About Air Compressors. Feel free to reach out any time! P.S. A HUGE shout out to Doug who really offers such great value to all visitors to About Air Compressors - once again, feeling like I'm standing on the shoulders of GIANTS by getting to work alongside such a great community

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Owner of a Hitachi air compressor EC 119SA from 2003 that requires 5W50 synthetic oil. Where can I buy this ? All sites on the web are bogus or don’t have it. 2.5 HP.

Comment moved to Hitachi compressor page.

Amazon, NAPA, even WalMart?
What seems to be the problem?

Nobody has it in 1qt. or less, at least not NON DETERGENT. Any 5W50 is detergent, made for combustion engines.


Hitachi e-12 compressor. It runs , Blows air to no return valve. All lines clean, air to tank .Got new return valve , New Pressure switch and gauges . No air builds up on gauges . Have some air in the tank.Small. No leaks in lines. The no return valve has small hose off it. Air blows out of this line fits into pressure switch. Do I need special line here ? Why am I not getting air build up in the tank. What Am I missing here ? All new parts together right. Bad pressure switch . Hitachi part.… Read more »

The small line off the no-return (check) valve is the unloader line.
It must be connected to the pressure switch. Whenever the machine is running the pressure switch unloader valveis supposed to block that line. Anytime it’s stopped it is supposed to open that line.
Yes, it does sound like maybe the pressure switch is bad.
I don’t know what your original problem was, but it may be your old switch was OK, and you can just put that back in.

Good luck.

Hello, I have a EC7106 Hitachi pancake and the pressure reducer is leaking. I reviewed the instructions for cleaning this out and found the problem. My white plastic piston that has the two o rings seals is broken in two. Can I find parts (plastic piston and o-ring or do I need to buy a whole new reducer? Please direct me in the right location to purchase. Thank you so much, Todd

And of course, it’s out of warranty.
Smallish regulators hardly ever get repair parts. Some people make their own.
I dunno what you have, but I suppose you might be able to screw it together a la broken bones?
You can compare prices, but there a few dealers – can’t say about any of em.