GX390UT2 QA2 389cc Horizontal Engine (Black)

COMMON APPLICATIONS

  • Common applications include:pressure washers, commercial lawn and garden equipment, tillers/cultivators, generators, forestry equipment, construction/industrial equipment, agricultural equipment, small vehicles, and water pumps.

FUEL EFFICIENT, HIGH OUTPUT OPERATION

  • Digital CDI ignition system with variable timing
  • Increased compression ratio
  • Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency
  • OHV design for increased efficiency and optimal power transfer

SMOOTH PERFORMANCE

  • Precision engineered components result in lower vibration
  • Ball bearing supported crankshaft for greater stability
  • Heavy duty balancer shaft
  • Improved piston design

EXCEPTIONALLY QUIET

  • Large capacity, multi-chamber exhaust system
  • Improved camshaft and muffler reduce overall engine noise by up to 5 dB
  • Reduced mechanical noise due to piston design
  • Forged steel crankshaft and rigid crankcase
  • Helical cut gears
  • Sophisticated air intake system

PROVEN RELIABILITY

  • Oil Alert
  • Cast iron cylinder sleeve
  • High quality materials, fit, and finish
  • Dual element air cleaner
  • Fuel Valve
  • 3-Year Limited Warranty

EASY TO USE AND MAINTAIN

  • Simple throttle control
  • Large fuel tanks
  • Large automotive type fuel cap
  • Dual oil drains and fill
  • Easy, convenient, heavy duty control box
  • Easily accessible spark plug

EASY STARTING

  • Heavy duty recoil starter
  • Automatic mechanical de-compression system
  • Variable ignition timing

EMISSIONS COMPLIANT

  • CARB and EPA certified
  • No catalyst necessary

AVAILABLE OPTIONS

  • Low profile versions
  • Gear reduction options
  • Spark arrester available
  • Charge and lamp coils with multiple output options available
  • Cyclone Air Cleaner available
Regular Price $723.36 Sale Price $673.95
  • Honda
  • 664601
Usually ships in 3-5 business days. We will contact you if ETA is longer.
Free shipping to lower 48 states.
Cannot ship to California.
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Air Cleaner Dual Element
Bore X Stroke 88 x 64 mm
Carburetor Butterfly Float Type
Color Black
Compression Ratio 8.2:1
Crankshaft Type Straight Shaft
Dimensions 16.0" x 19.1" x 17.7"
Displacement 389cc
Dry Weight 69 lb(31.5 kg)
Engine Type Air-cooled 4-stroke OHV
Fuel Unleaded 86 octane or higher
Fuel Tank Capacity 6.4 qt(6.1 l)
Governor System Centrifugal Mass Type
Ignition System Digital CDI with variable ignition timing
Lubrication System Splash
Model Name GX390UT2-QA2
Net Power Output* 11.7 HP (8.7 kW) @ 3,600 rpm
Net Torque 19.5 lb-ft (26.4 Nm) @ 2,500 rpm
Oil Capacity 1.16 qt(1.1 l)
Pto Shaft Rotation Counterclockwise
Starting System Recoil
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