NorthStar 20 Gallon Air Compressor – GX390 Review

NorthStar GX390 20 Gallon Air Compressor Review
PROS

✔️ High CFM PSI
It operates with a maximum 175 PSI pressure, with output of 24.4 CFM at 90 PSI.

CONS

No Major Drawback
This unit is so compact that we can’t point out even one single drawback of this unit.



NorthStar 20 Gallon Air Compressor

In this article, we will share NorthStar 20 Gallon Air Compressor GX390 Review in detail. This NorthStar 20 Gallon air compressor is a heavy-duty horizontal air compressor. NorthStar GX390 is powered by a quality Honda gasoline engine with 3 Amp charging system.


NorthStar GX390 is a full cast belt-driven iron two-stage air compressor. Its V-type pump features cylinder design for Low Vibration Technology (LVT), superior cooling for smooth operation and floating-type Swedish steel valves for long valve life. Its crankshaft has bearings on both ends for excellent support and smooth running.


NorthStar GX390 has a liquid-filled pressure gauge for better accuracy and protection against pressure spikes. It also has a durable steel belt guard which makes it standalone from other same range compressors.


NorthStar GX390 20 Gallon Key Specs


BrandNorthStar
Manufacturer’s Warranty4 Yr Consumer/2 Yr Commercial
Ship Weight492.0 lbs
Horsepower12 HP
Air Tank Size20 Gal
Engine BrandHonda
Engine Displacement390 cc
CFM at 90 PSI24.4
Max. PSI175
CFM at 40 PSI26.8
Engine Start TypeElectric w/recoil backup
Stage2

NorthStar 20 Gallon Air Compressor Additional Specs


Drive StyleBelt
Duty Cycle100 %
Air Outlet Size3/4 in. NPT
Fuel Capacity1.6 Gal
Pump MaterialCast Iron
Oil RequiredYes
Low Oil ShutdownYes
Low Oil ProtectionYes
Drain TypeManual
After Cooler IncludedYes
Tank OrientationHorizontal
Dimensions L x W x H (in.)41 x 19 x 40



NorthStar Air Compressor 20 Gallon


Features & Benefits

NorthStar GX390 20 Gallon Features & Benefits


  • Honda GX160 OHV engine with low oil shutdown
  • Full cast iron pump for long service life
  • Delivers 13.7 CFM @ 90 PSI
  • 130 max. PSI
  • V-style cylinder design for superior cooling
  • Pump head made of FC35 Grade cast iron
  • Floating-type Swedish steel valves deliver much longer valve life
  • Operates at slower RPM to run cooler and last longer
  • Low Vibration Technology (LVT) features a dynamically balanced pump for smooth operation and long life
  • One-piece cast iron crankcase has bearings on both ends of crankshaft for superior crankshaft support, not overhung crankshaft design
  • 100% duty cycle
  • Durable steel belt guard
  • Liquid-filled pressure gauge
  • Oversized flywheel for cooler operation
  • Heavy cast iron flywheel provides extra momentum
  • Step-type piston rings ensure piston ring overlap for better compression
  • Sight glass for quick viewing of oil level
  • Replaceable crank journals and wrist pin journal/needle bearings
  • Two-piece connecting rods can be rebuilt for superior serviceability
  • High pressure piston wrist pins have needle bearings
  • Easy start lever on unloader valve isolates pump from tank pressure, so engine won’t have to start under load
  • Pressure regulator to control outlet pressure
  • 20-gallon ASME-certified horizontal tank
  • Built-in wheels with handle for easy portability


Best NorthStar Air Compressors


NorthStar_8.5-HP_8-Gallon NorthStar 8.5-HP 8-Gallon Gallon: 20
HP: 8
Style: Portable
Engine: Honda GX270 OHV
Fuel Type: Gas

Jump to details ⮟

Check Price
NorthStar_12-HP_30-Gallon NorthStar 12-HP 30-Gallon Gallon: 30
HP: 12
Engine: Honda GX
Fuel Type: Gas

Jump to details ⮟

Check Price
NorthStar_7.5_HP_80-Gallon NorthStar 7.5-HP 80-Gallon Gallon: 80
HP: 7.5
Fuel Type: Gasoline
Voltage: 230 Volt AC

Jump to details ⮟

Check Price
NorthStar_4.8-HP_20-Gallon NorthStar 4.8-HP 20-Gallon Gallon: 20
HP: 4.8
Engine: Honda GX
Fuel Type: Gas

Jump to details ⮟

Check Price
NorthStar_GX390_20_Gallon NorthStar GX390
20-Gallon
Gallon: 20
Surge Watts: 8000
Rated Watts: 6600
Engine: Honda GX390 OHV
Fuel Type: Gasoline

Jump to details ⮟

Check Price
NorthStar_2-HP_20-Gallon NorthStar 2-HP 20-Gallon Gallon: 20
HP: 2
Style: Portable – Vertical
Engine: Honda GX
Fuel Type: Gasoline

Jump to details ⮟

Check Price
NorthStar 4.8-HP 8-Gallon Gas NorthStar 4.8-HP 8-Gallon Gallon: 8
HP: 4.8
Style: Wheel Barrow
Engine: Honda GX
Fuel Type: Gasoline

Jump to details ⮟

Check Price
NorthStar_1.5_HP_8-Gallon_Vertical_Tank NorthStar 1.5 HP 8-Gallon Gallon: 8
HP: 1.5
Style: Portable – Vertical
Fuel Type: Gasoline

Jump to details ⮟

Check Price
NorthStar_8-Gallon_Kohler_CH395_OHV_Engine NorthStar 8-Gallon
Kohler CH395 OHV Engine
Gallon: 8
HP: 12
Engine: Kohler CH395 OHV
Fuel Type: Gasoline

Jump to details ⮟

Check Price


NorthStar GX390 20 Gallon Air Compressor Conclusion:

In this article, we tried to cover NorthStar 20 Gallon Air Compressor GX390 Review in detail. It’s a heavy-duty 20-gallon horizontal air compressor. NorthStar GX390 is powered by a quality Honda gasoline engine with 3 Amp charging system.


The unit is particularly heavy (492 lbs) and is expensive (typically ~$1,000-2,000).


But at the same time, its biggest benefit is high CFM PSI. It operates with a maximum 175 PSI pressure; it boasts an output of 18.7 CFM at 175 PSI, as well as 24.4 CFM at 90 PSI.


In short, if you have budget, this air compressor is a must have for all of your garage and other heavy-duty requirements.