DEWALT D55140 1-Gallon 135 PSI Max Trim Compressor Review

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The DEWALT D55140 1-Gallon 135 PSI Max Trim Compressor is the third compressor I’ve owned, and I must say it is my favorite by far. From my experience with residential construction, comparing this little machine to other compressors in its class, the Dewalt D55140 is amazingly light and quiet while working. Trust me, you gotta love and buy this thing!

This little machine is the perfect combination of performance, power, and portability. I bought this from Amazon at an affordable cost, and it got shipped in very fast (which seems to be how they deliver all of their products), and with which I have no post-purchase regrets whatsoever. I followed the simple break-in procedure, and it has functioned efficiently since then without a hitch – from pumping my tires (1-gallon capacity is enough to fill all tires of my two cars, including spares), doing light trimming jobs, and flooring stapler, and other do-it-yourself installations. This is an excellent compressor for your next home project.

No oily residue, not much cleaning or maintenance needed

The pump for DEWALT D55140 is oil-free, meaning no oil changing or tedious maintenance needed for this light-weight compressor. Another great feature of this unit is that even though it is oil-free (which generally means a noisier compressor), this emits only 69dB (decibel), which renders it rather quiet compared to its same class counterparts.

Designed for maximum durability and longevity

The materials used for DEWALT D55140 Trim Compressor is heavy-duty cast-iron, tough enough to withstand accidents plus ordinary wear and tear. The design includes an innovative roll cage and a full-protection frame, promising maximum durability and extended life performance.

See the Dewalt D55140 in action here:


  • An oil-free pump allowing longer maintenance-free operation
  • Low 69 dB level, relatively more quiet than other oil-free compressors of its class
  • Roll cage and control panel which give needed protection from accidents and wear and tear
  • Allows easy start-up with a low 2.6 amp draw motor
  • Comes with a 1.0 gallon tank, 0.75 SCFM delivered at 90PSI; 135 max PSI for required air power
  • Lightweight (24 pounds) and compact for easy portability
  • A ball valve drain allows quick and complete draining of the tank
  • Easy storage
  • Efficient performance of high flow regulator

Pros and Cons:


  • Very durable with cast-iron built
  • Oil-free so no need for periodic maintenance
  • Suitable for small home repairs & rennovations


  • Not Suitable for heavier tasks which requires higher CFM

Dewalt D55140 Customer Reviews and Scores

The customer ratings for DEWALT D55140 1-Gallon 135 PSI Max Trim Compressor are at extremes ends. Nearly 60% rated it as ‘the perfect portable compressor’, and a highly recommended must-buy.

On the other hand, several hitches were identified by frustrated customers who gave it a low score (nearly a quarter of reviewers gave it one to 3-star rating). These include leaks, “not enough air capacity”, faulty regulators, cheap plastic knobs, “not fit for big jobs in construction and renovation”.

Customers usually realize they have specific requirements that the DEWALT D55140 is not designed for, and go ahead with buying the compressor that fits their needs accordingly. Unfortunate incidences where the unit have minor to more major (validated) flaws, have been properly fixed through minimal technical troubleshooting or replaced by Amazon “very promptly”, as reported by most customers.


DEWALT D55140 1-Gallon 135 PSI Max Trim Compressor is suitable for relatively low-volume air requirements, and has been optimally designed to be protected from unwanted accidents and regular wear and tear through its quality heavy-duty cast-iron built. It is oil-free; that is, it has been designed to be pre-lubricated (usually with a Teflon permanent lubricant), providing extended unit life and maintenance free operation.

This is an indispensable tool, highly recommended for small home repairs and renovations. Its ergonomic design and features ensure optimum power usage and quick recovery. For your air pressure needs within its design range, the DEWALT Trim Compressor is a lovable quiet tool, that is affordable, exceptionally versatile and a sure high-performer!

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