Sullair 375 Construction Air Compressor

Published Categorized as Sullair 8 Comments on Sullair 375 Construction Air Compressor

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About the Sullair 375 Construction Air Compressor

The Sullair 375 construction air compressor is what is termed as a portable. It is designed and built to be towed to a construction site, and there to provide up to 375 CFM of compressed air at 100 PSI.

Being a construction compressor, the power plant is a gasoline or diesel fueled internal combustion engine, driving a rotary screw compressor.

In 2018 the new 375 has a number of power plants available, including the: Caterpillar CATC4.4 (T2), an Inline 4, 4-Stroke-Cycle Diesel or a John Deere JD4045HF cylinder inline diesel.

Designed for field use and user convenience, the new Sullair 375 offers lage service doors, multi-piece canopy for ease of partial or complete canopy removal for greater compressor service, complete highway-towable trailer package, and a curbside instrument panel for user convenience, among many other features.

Sullair 375 Construction Air Compressor
Sullair 375 Construction Air Compressor

Sullair has been building portable rotary air compressors for construction use since 1965 at their Michigan City Indiana location, and via their international supplier in China, and sell their compressors world-wide.

Those looking for help with their Sullair 375 construction air compressors should first access their service network at their plant, by phone or online at

Sullair, LLC
North America Operations
3700 East Michigan Boulevard
Michigan City, IN 46360

Or, if you have a problem or question about your Sullair 375 compressor and you would like to ask other owner’s about it, this page is my forum on that model of Sullair. Simply review the existing comments below for a solution or answer, and if you don’t find it, ask your question using the forum below.

Cheers, Bill.

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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Just fixed a broken coolant hose. D375 wouldn’t start, so took it home where it promptly started and ran for 2 hours under load. Moved it again and it won’t start again. Fluids are full and the solenoid on the wall near the starter just clicks once when I try to start, but the starter isn’t allowed to energize.

Replaced the solenoid – problem solved. These things are intimidating, but an old fashioned mechanic fixed it this time. Is there a way to read the codes on these things to help with troubleshooting? Is there a shop manual available?

I have a 375 sullair air compressor having issues with throttling up it wont idle up when switching over. I replaced the pressure transducer and no change it has the john deere motor. Im looking for the throttle position location.

Does it make normal pressure with no load?

What is the best type of oil to use in an old sllair 375air compressor

Sullair 375 lubrication chart

I have a 425 cfm when oil in air resivor gets hot it shuts down wondering how hot oil suppose to get it seems to hot to me and gets there in about 5 min after starting air barely on I suppose it has a kill to motor if gets to hot I just put new oil to see if that helped what about separator filter can that make it get hot or bearing on screw itself

What model?
But yeah, generally there is a kill if it gets too hot. 210 F is a common shutdown temp..
Is the radiator getting hot? If not, you may have a bad thermostatic bypass. Works the same as the water thermostat in a car… Or a clogged filter.
You checked anything else? Do you know if this come on suddenly or gradually or ?