DEWALT D55146 Air
- Air
- 4.5 gallons
- Corded electric
- 88 pounds
- Better rated than 55%
- More reviewed than 57%
A 120 volt, 4.5 gallon compressor suited to job site or garage use, where tank capacity matters more than portability or light weight.
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How it ranks among the 94 airs we track
4.5★ across 415 Amazon ratings, Bayesian-smoothed toward the category average.
415 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 94 airs we track - how the scorecard works · full airs data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The DEWALT D55146 is a corded electric air compressor running on 120 volts, with a 4.5 gallon tank and an 88 pound body sized at 28 by 24 by 16 inches. It plugs into standard household power rather than running cordless.
A 4.5 gallon tank sits in the portable-to-mid-size range, enough for intermittent trim, framing, or inflation tasks without the recovery time of a larger stationary unit, though it will cycle more often than a bigger tank under continuous use. At 88 pounds it is not a one-hand carry, so plan for a cart or a two-person lift when moving it around a site.
- 4.5 gallon tank capacity
- 120 volt corded electric power
- 88 pounds
- 28 x 24 x 16 inch dimensions
Who it's for
Works for contractors and DIYers running pneumatic tools on 120 volt power at a fixed or semi-portable location. Not ideal for anyone needing a lightweight, grab-and-go compressor or true cordless operation.
Strengths and trade-offs
Drawn from this product's published specifications.
- 4.5 gallon tank for sustained intermittent use
- Runs on standard 120 volt power
- 88 pounds, not easily hand-carried
- Corded electric only, needs an outlet nearby
Performance notes
The 4.5 gallon tank on 120 volt power balances air reserve against recovery time, giving enough capacity for stop-start nailing or fastening before the motor needs to refill the tank. The 88 pound weight and 28 by 24 by 16 inch footprint make it better suited to being wheeled or lifted into place than carried by hand.
Specifications
| Brand | DeWalt |
|---|---|
| Model | D55146 |
| Capacity | 4.5 gallons |
| Power Source | Corded electric |
| Item Weight | 88 pounds |
| Voltage | 120 volts |
| Dimensions | 28 × 24 × 16 inches |
Other DeWalt airs
How it compares
This product against the closest alternatives we track in airs.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| DEWALT D55146 AirThis product | 4.5 / 5 | 415 | 4.0 / 5 |
| OlarHike TIC3V401 AirOlarHike | 4.5 / 5 | 5,100 | 4.5 / 5 |
| Xiaomi BHR7112GL AirXiaomi | 4.6 / 5 | 8,236 | 4.4 / 5 |
| Bostitch BXCM02012-WPK AirBOSTITCH | 4.7 / 5 | 1,900 | 4.3 / 5 |
| Makita DMP180ZX AirMAKITA | 4.7 / 5 | 3,273 | 4.3 / 5 |
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Questions about the DeWalt D55146
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size tank does the DEWALT D55146 have?
It has a 4.5 gallon tank.
Is the D55146 cordless?
No, it runs on corded 120 volt electric power.
How much does the D55146 weigh?
It weighs 88 pounds.