Honda GX390 Threaded Shaft Pump Engine

R16718,70 Including VAT. Online Sale Price

Honda Engine GX390 H1 PX – 8.2 kW Horizontal 1″ Threaded Shaft (Davy / Normac Pumps Engines).

SKU: HGX390H1PX Category: Tags: , , ,


Honda GX390 Threaded Shaft (Pump) Engine 11hp Horizontal – GX390 H1PX

Please take note that this Honda Product may have a waiting period for delivery. Please contact us to confirm the waiting period.
p/n: HGX390H1PX

Honda GX series engines are legendary for superior reliability and performance. And there is no doubt about it: the GX390 lives up to the legend. Lower noise levels, lower vibration, and lower emissions – without sacrificing power output or performance. Common applications for this engine is Pressure washers, Commercial lawn and garden equipment, Tillers / cultivators, Generators, Construction / industrial equipment, Agricultural equipment, Water pumps.


  • Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency
  • Ball bearing supported crankshaft for greater stability.
  • Forged steel crankshaft and rigid crankcase
  • Heavy duty recoil starter
  • Automatic mechanical de-compression system
  • Oil Alert


  • Model: GX390
  • Type: 4-stroke, overhead valve, single-cylinder, horizontal shaft
  • Bore & Stroke: 88 x 64 mm
  • Displacement:: 389 cm3
  • Compression Ratio: 8.0 : 1
  • Net Power: 8.2kW (11.0HP) at 3,600 rpm
  • Continuous Rated Power:
  • Maximum Net Torque: 25.1 Nm at 2,500 rpm
  • Ignition System: Transistorised magneto ignition
  • Starting System:: Recoil (Electric Starter Optional)
  • Cooling System: Forced-Air
  • PTO Shaft Rotation: Counter-clockwise (from P.T.O. side)
  • Fuel Consumption at Rated Power: 3.7 L/h at 3,600 rpm
  • Recommended Fuel: Unleaded
  • Lubrication System: Splash
  • Recommended Oil: 10W/30 API SG
  • Fuel Capacity: 6.1 L
  • Oil Capacity: 1.1 L
  • Dimensions: 405 x 450 x 443mm
  • Dry Weight: 25kg

Other GX390 Options: 2:1 Reduction

Warranty 1 year  Limited (subject to annual service)

4.8hp Honda Engine GX160 Cyclone Horizontal

Additional information

Weight 32 kg
Dimensions 63 × 60 × 63 cm