Gilbarco Air Compressors

Published Categorized as Gilbarco 11 Comments on Gilbarco Air Compressors

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Gilbarco air compressors are no more. At one time the company was known as GILBERT AND BARKER.

Charles Gilbert and John Barker’s partnership was incorporated as the Gilbert & Barker Manufacturing Co. of Springfield, Massachusetts in 1870, and were heavily involved with gasoline, gasoline and fuel pumping, and fuel dispensing from the get go.

Gilbarco brand air compressors were likely not manufactured by Gilbarco. Gilbarco is now known as: Gilbarco / Veeder-Root. Their website is:

If you have pumped gas at a self-serve station, then you’ve likely already seen the product that Gilbarco is renowned for, other than air compressors, that is. It’s the gas pump itself.

Gilbarco / Veeder-Root’s current mission, among other things, is to provide “a state-of-the-art fueling experience …”.

Gilbarco "Green Diamond" air compressor
Gilbarco “Green Diamond” air compressor

If you are the proud owner of a Gilbarco air compressor you are out of luck when it comes to buying OEM parts and getting OEM service. I would expect that many non-OEM parts would fit the Gilbarco air compressor, depending on which part it is that failed.

To help Gilbarco compressor owners and users exchange all things relating to Gilbarco Air Compressors to help folks deal with maintenance and parts issues they are experiencing.

If your question about Gilbarco air compressors is not already answered, please post it using the form. The form to add a question is found at the bottom of this page. Please also read the comments below as you scroll down, your answer may be here.

Since Gilbarco air compressors are venerable old beasts, if you have one and resolved issues with it, maybe you can help other Gilbarco users by adding a comment with your experience? If your advice includes pictures, so much the better.

I thank you as does the Gilbarco air compressor users trying to find help on this page.


Existing Gilbarco Air Compressor Issues:

Time to fill a Gilbarco 80 gallon tank

Gilbarco air compressor information

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Does any body know if the contacts are any where for a penn switch……I need a set of contacts for my Gilbarco

I have a older model, looking for gaskets for the pump.
Anyone know value of this model if anything?

Can someone help me please? Don’t know what this part is, but it needs to be replaced. There is a bolt that looks like it was added in this part and maybe doesn’t belong. The threads are damaged and it leaks air here.

Right. That area is where a centrifugal unloader would be. Looks like it broke, and they plugged it with the bolt, and added the line to a pressure switch with an unloader valve.
It’s extremely unlikely you can repair the original, but you can probably stop the leak with an abundance of pipe tape – looks like there’s some on it now. You may need to clean up the threads and maybe get the right bolt or plug that fits better.
Have fun and good luck.

Last edited 2 years ago by Doug in

I have a Gilbarco compressor and don’t know what this part is on the compressor. It needs to be replaced. It leaks and has a bolt threaded into it, but the threads are brass and they are cracked. Any suggestions? I appreciate any info received. It won’t load the pictures, but there’s a copper tube that runs from below the pressure switch into this part. Then tubing goes out the top of said part and continues to the top of the head.

Just picked up this old gilbarco air compressor, got it hooked up right now to 110 volts. It produces air but very slowly, the belt turns very slowly. If I hooked it up to 220 volts will it go faster? The second picture is the badge on the electric pump, idk if this is just the speed it moves at because of the age or what. Also if I was to get a new motor and pump what would be the best, trying to keep the tank.

A better pic of the motor plate would be nice. Sounds like it’s wired for 230 now. You could either hook it up to 220 or wire it for 115 for the present supply. Have you checked the motor wiring? They are usually wired 230, for better efficiency. The speed is dependent on the motor design and the frequency of the AC coming into it. My guess is the voltage is wrong, so it’s slipping (magnetically) like crazy and probably running at half or even quarter speed. Or, it might be the belt slipping, but if that’s the case you’d… Read more »

It was wired to 220, I wired it to 110 and it’s running perfect, builds up decent but might need to put a higher horsepower motor

Glad that helped. Thanks for letting us know.
Did you time it and figure out what CFM it’s getting? What PSI at cut-out?
Putting a bigger motor implies running it at higher speed, which could reduce its efficiency and longevity, unless you’re careful.

It’s not cutting off, it reaches 100 pounds takes about 7 minutes then it starts to blow off air, what can I do?

Blow off air from where? Does the PRV let go? Uh oh. I don’t see one. Is it on the pack of the tank, or missing altogether?