Honda GX390 13 hp Horizontal Commercial Engine

The GX390 is all new for 2010, featuring more power, quieter performance, lower fuel consumption, and lower emissions.

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  • With new features and better performance, the new GX engines establish themselves yet again as the best engines in the business.
  • Fuel Efficient, High Output Operation
  • Smooth Performance
  • Exceptionally Quiet
  • Proven Reliability
  • Easy to Use and Maintain
  • Easy Starting

Common Applications

  • Pressure washers
  • Commercial lawn and garden equipment
  • Tillers / cultivators
  • Generators
  • Forestry equipment
  • Construction / industrial equipment
  • Agricultural equipment
  • Small vehicles
  • Water pumps

Financing available for major purchases! (Items with serial numbers)

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Contact your Sales Rep for Fleet Pricing
GX390HA 6:1 Reduction, Straight shaft 1” x 2-5/32”, 1/4” keyway, Oil Alert 0224 $1,838.00
GX390QAPW Straight shaft 1” x 2-31/64”, 1/4” keyway, Oil Alert, Silent 0224 $1,483.00
GX390QAE Straight shaft 1” x 2-31/64”, 1/4” keyway, Electric Start, 3A Charge, Oil Alert 0224 $1,874.00
GX390QNE Straight shaft 1” x 2-31/64”, 1/4” keyway, Elect Start, 10A Charge, Oil Alert 0224 $2,086.00
GX390QNR Straight shaft 1” x 2-31/64”, 1/4” keyway, Elect Start, 18A Charge, Oil Alert 0224 $2,147.00
iGX390QZNR Straight shaft 1” x 2-31/64”, 1/4” keyway, Oil Alert, Elect Start, 20A Charging, ‘Auto-Idle', ‘Auto-Choke' 0224 $2,683.00

All prices, descriptions, and specifications subject to change without notice. Items may not be exactly as illustrated.

Contact the Lawnmower Hospital today for more information or to make a purchase.

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Engine TypeAir-cooled 4-stroke OHV
Bore x Stroke88 X 64 mm
Displacement389 cm3
Net Power Output*11.7 HP (8.7 kW) @ 3,600 rpm
Net Torque19.5 lb-ft (26.4 Nm) @ 2,500 rpm
PTO Shaft RotationCounterclockwise (from PTO shaft side)
Compression Ratio8.2:1
Lamp/Charge coil options25W, 50W / 1A, 3A, 10A, 18A
CarburetorButterfly Float Type
Ignition SystemDigital CDI with variable timing
Starting SystemRecoil/electric
Lubrication SystemSplash
Governor SystemCentrifugal Mass Type
Air cleanerDual element
Oil Capacity1.16 US qt (1.1 L)
Fuel Tank Capacity6.4 U.S. qts (6.1 liters)
FuelUnleaded 86 octane or higher
Dry Weight69 lb (31.5 kg)
Length (min)16.0" (407 mm)
Width (min)19.1" (485 mm)
Height (min)17.7" (449 mm)

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