GX390 13.0 HP OHV *

Standard Features

  • Efficient and compact overhead valve design
  • Durable ball bearing crankshaft
  • Electronic ignition and automatic decompressor for easier starting
  • Heavy duty recoil starter
  • 2 sided oil drain/ filler cap for varied applications
  • Large standard muffler for quiet operation


  • D.C. electric start
  • Cyclone, oil bath , snorkel and dual element air filter options
  • 1 ~ 18 amp battery charging systems
  • Larger mufflers for even quieter operation



  • 3 year limited warranty

warranty image

SKU Price PTOStarterAir CleanerOil AlertNotesDry Weight
GX390HA $1,838.00 1" dia.RecoilDual ElementYes6:1 Red35.5 kg / 78 lbs
GX390QAPW $1,483.00 1" diaRecoilDual ElemenetYes34.0 kg / 75 lbs
GX390QAE $1,874.00 1" dia.Recoil/ElectricDual ElementYes3 Amp34.0 kg / 75 lbs
GX390QNE $2,086.00 1" dia.Recoil/ElectricDual ElementYes10 Amp34.0 kg / 75 lbs
GX390QNR $2,147.00 1" dia.Recoil/ElectricDual ElementYes18 Amp34.0 kg / 75 lbs
iGX390QZNR $2,683.00 1" dia.Recoil/ElectricDual ElementYes20 Amp, 'Auto-Idle', 'Auto-Choke'34.0 kg / 75 lbs
Engine Type Air-cooled, 4-Stroke, OHV, single cylinder
Bore x Stroke 88 x 64 mm (3.5 x 2.5 in)
Displacement 389 cm3 (23.7 cu in)
Compression Ratio 8.0 : 1
Net Horse Power Output* 8.2 kW (11.0 HP) at 3,600 rpm
Net Torque 25.1 Nm (18.5 lbs ft) at 2,500 rpm
PTO Shaft Rotation Counterclockwise (from PTO shaft side)
Ignition System Transistorized magneto ignition
Carburetor Horizontal type butterfly valve
Lubrication System Forced Splash
Governor System Centrifugal Mechanical
Oil Capacity 1.1 l (1.16 US qt, 0.97 Imp qt)
Fuel Tank Capacity 6.1 l (6.4 US qt)
Dimensions (L x W x H) 405 x 450 x 443 mm (15.9 x 17.7 x 17.4 in)

All prices subject to change without notice.
* The power rating of the engine indicated in this catalogue is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3600 rpm (7000 rpm for model GHX50, GXV50, GX25 and GX35). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance and other variables.