Well for one thing, it's rated for 200 PSI. Many other low end compressors have a supply pressure rating of 135-150 PSI and some are even lower. And, if the 55146 actually delivers the 5 CFM at 90 PSI that it claims it can, that's large, usable air flow in a very small compressor package.
It's my opinion that the wheels (foam filled and flat free) on the 55146 are more robust than those on many other air compressors.
I like the collapsible handle.
I like that it's lubed-for-life from the factory and I wouldn't have to mess with oil fill and maintenance.
That the 55146 is reasonably quiet as compared to other compressors (though it is not silent, for sure) is a plus, though it is designed for outside use where compressor noise is a bit less critical.
DeWalt suggests that a 50 foot 12 gauge power line can feed it without the motor overheating, yet if it were my DeWalt, I'd add an extra air line for distant air use instead of an extension cord, thus keeping the electrical power supply to my 55146 as short as possible, for greater compressor motor efficiency.
Since it seems that this DeWalt is a popular air compressor, this is the forum page for the DeWalt 55146 Air compressor. Postings here are from folks, like you, that use the DeWalt 55146 air compressor. If you have a question about yours, I would ask that you review the existing comments first to see if your compressor issue is there and already answered. Please also see the troubleshooting section which offers reasons and solutions for many common air compressor problems, regardless of brand, before posting your question using the form below.
If you can respond to any of the other visitor's postings with helpful 55146 suggestions - as a comment - that would sure be a help to all.
Having an issue with your DeWalt 55146 Air compressor?
Other visitor's comments and experiences on their DeWalt 55146 are found below.
Dewalt D55146 type 3 2.5 gal will not shut off
It will not shut off at 180 psi anymore. Pressure switch switch off/on (auto) selector dial has not been working for a while, would just leave it in …
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DeWalt model D55146 air will not come through hose
Pressure is built up to correct level, but air will not come through hose, when connected to quick coupling. I have DeWalt model D55146 air compressor. …
Dewalt D55146 Motor Runs, no air pressure
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Dewalt 55146 belt driven. Cooling fan runs but motor doesn't start.
I have a dewalt 55146 belt driven compressor. The cooling fan starts and just runs the main motor doesn't start. If I turn it off and on then the cooling …
D55146 Type 2 reaches Max pressure (200PSI) and will not shut off
Dewalt D55146 Type 2, 200 PSI, 4.5 Gal compressor. Will not turn off, replaced pressure switch and it still will not turn off. I tried turning down pressure …