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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Clearance of outdated and other models of Hitachi air compressors can be found on Amazon and other online outlets as well.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:
Hitachi Koki USA Ltd.
3950 Steve Reynolds Boulevard
Norcross , GA , 30093 , United States
Website: www.hitachipowertools.com
Additionally, this page is a place where users of Hitachi air compressors can ask questions about their compressors.
Or, got a tip or help for another Hitachi air compressor user? Please add a comment about that post.
Hitachi Air Compressor User 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?
We thank you!
Bill
For information on how to change Hitachi compressor oil visit our guide here!
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.
Grainger.
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.