Hey! This site is reader-supported and we earn commissions if you purchase products from retailers after clicking on a link from our site.
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 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 https://americas.sullair.com.
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.
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
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 ?