Milwaukee M18 FUEL 2840-20

Last updated: October 31, 2026

Milwaukee M18 FUEL 2840-20
2.3/5#18 of 20 in portable air compressors
2.3

For Milwaukee M18 trim carpenters and remodelers who want a quiet cordless compressor for finish nailing.

  • 1.2 CFM at 90 PSIAirflow
  • 2 galTank
  • 68 dB(A)Noise
  • 3 yearsWarranty
Check price at Tool Nut$399Check price at The Power Tool Store$399Check price at Coastal Tool$399

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • No cord: runs anywhere on M18 packs, up to 1,600 brad nails per charge
  • Quiet at a stated 68 dB(A), better than most corded units
  • Low, stackable frame stores easily in a truck or van
Cons
  • 1.2 CFM at 90 PSI only suits finish and brad nailers
  • Price is for the bare tool; batteries add a lot
  • Heavy for a cordless unit at about 31 lb

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Model number2840-20
Air
Airflow at 90 PSI1.2 CFM
Max pressure135 PSI
Tank2 gal
Pump and motor
PowerBattery
Motor18 V
Oil-free pumpYes
Battery includedNo
Build
StyleHotdog
Noise68 dB(A)
Weight31.2 lb
Warranty3 years

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