Honda GXV390 UT1 DN4 25.4mm 1″ Shaft 10.2hp Vertical Lawn Mower Engine

R16172,22 Including VAT

Honda Vertical Shaft Engine. (GXV390 UT1 DN4) OHV , 25.4mm Crank Shaft , 7.6kW, 389cc, 33KG, No Oil Alert.

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Honda GXV390 Engine 25.4mm (1″) Shaft 10.2hp Vertical Lawn Mower Engine GXV390 UT1 DN4

p/n: HGXV390UT1DN4

Honda Vertical Shaft Engine. (GXV390 UT1 DN4) OHV , 25.4mm Crank Shaft , 7.6kW, 389cc, 33KG, No Oil Alert.

The Honda GXV390 is used to power commercial lawn and garden equipment, including Ride-on lawn mowers. As well as this, the GXV390 is often used to power Construction/Industrial Equipment, as well as heavy-duty Agricultural equipment.


The GXV390 precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency, and its Overhead Valve design supplies optimal power transfer.

It also incorporates a high compression ratio for better fuel efficiency, which is handy for your pocket – and the environment.

Precision engineered components result in lower vibration, and the GXV390 features Dual balancer shafts and a Ball Bearing-supported crankshaft for greater stability.


  • Model: GXV390
  • Type: 4-stroke, overhead valve, single-cylinder, Vertical shaft
  • Bore &amp Stroke: 88 x 64 mm
  • Displacement:  389 cm3
  • Compression Ratio: 7.7 : 1
  • Net Power: 7.6kW (10.2HP) at 3,600 rpm
  • Continuous Rated Power: 5.2kW (7.0HP) at 3000 rpm
  • Maximum Net Torque: 24.2 Nm at 2,500
  • Ignition System: Transistorised magneto ignition
  • Starting System:  Recoil (Electric Start Optional)
  • Cooling System: Forced-Air
  • PTO Shaft Rotation: Counter-clockwise (from P.T.O. side)
  • Fuel Consumption at Rated Power: 2.5 L/h at 3,000 rpm
  • Recommended Fuel: Unleaded
  • Lubrication System: Pressure and splash
  • Recommended Oil: 10W/30 API SG
  • Fuel Capacity:  2.1 L
  • Oil Capacity: 1.1 L
  • Dimensions: 430 x 385 x 410 mm
  • Dry Weight: 33.0 kg
  • Warranty 1 year  Limited (subject to annual service)

Additional information

Weight 33 kg
Dimensions 53 × 50 × 51 cm