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There are probably tens of thousands of Ingersoll Rand P185 tow behind air compressors in use and for sale around the world. I have not been able to get any specific information on this venerable compressor from IR, except that it’s a portable – being that it’s a towed air compressor – and that it’s supposed to provide 185 CFM of air flow when running optimally.

What’s here on this Ingersoll Rand P185 Tow Behind Compressor page?

  • status on the P185 – General Information
  • a 185 compressor manual and parts manual for no-charge download
  • library of questions and responses for troubleshooting
  • section to ask your own question about this model and get help from other users

It appears as though Ingersoll Rand is no longer selling portable construction compressors, preferring to manufacture and sell construction equipment like jackhammers and what not as well as industrial air compressors.

We understand that the portable construction compressor business was sold to Doosan Portable Power. If you have information confirming this, we would appreciate an update via the comment form below.

Ingersoll Rand P185 Tow Behind Compressor
Ingersoll Rand P185 Tow Behind Compressor

In the absence of troubleshooting information for the P185 family of Ingersoll Rand compressors, I am providing a forum here for users to post questions and respond if they can.

Have a look, add your question here about the Ingersoll Rand P185 tow behind air compressor, and if you can help another user with some knowledge or advice, please add a comment.

All IR P185 compressor users, and me, say thanks,

Ingersoll Rand 185 and P-185 Tow Behind Air Compressor Manuals

Just in – Ingersoll Rand 185 manual.

And a big thank you to Doug from S.D.Ca for this P-185 parts manual.

Feel free to download either to your computer.

Having an issue with your Ingersoll Rand (IR) P185 tow behind air compressor?

If you scan the existing postings below, you may find an answer already there. If not, scroll to the bottom of the page and add your question.

Can you answer one? Please leave your advice as a comment on any of the existing postings about the IR P-185 air compressor.

Thanks from all of us.


Ingersoll Rand Tow Behind Portable Air Compressor Troubleshooting

Existing Ingersoll Rand P185 tow behind compressor questions and responses:

Ingersoll Rand 185 won’t stay running

Use ATF in a P-185

Adjust air pressure on an I/R 185

I/R 185 cuts out under load

I-R 185 bogs down and dies

Ingersoll Rand 185 pumping oil with air

P-185 stalling

I/R 185 shutting down

Ingersoll Rand P185WJD parts catalogue

I/R 185 spitting hydraulic oil

Ingersoll Rand 185 intermittent shut down

Ingersoll Rand 185 blowing air out of pressure relief

Ingersoll Rand P185 running hot & oil is dark

Ingersoll Rand P-185 ran out of fuel and now won’t start