• Honda gxv340 Vertical Crankshaft Engine
  • GXV340 Performance Curve

Honda GX340 Engine – Vertical Crankshaft

Quality and performance come standard.
Professionals rely on the GXV390 to deliver reliable and easy-starting, along with fuel-efficient performance, day in and day out

Common Applications:

  • Commercial lawn and garden equipment
  • Tractors
  • Construction/industrial equipment
  • Agricultural equipment
  • Small vehicles


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Spec Sheet
Engine Type Air-cooled 4-stroke OHV
Bore x Stroke 82 mm x 64 mm
Displacement 337 cm3
Net Power Output* 8.9 HP (6.6 kW) @ 3,600 rpm
Net Torque 15.9 lb-ft (21.6 Nm) @ 2,500 rpm
PTO Shaft Rotation Counterclockwise (from PTO shaft side)
Compression Ratio 7.7:1
Fuel Tank Capacity 2.1 litres (2.2 U.S. qts)
Lamp/Charge coil options 1A, 3A, 10A
Carburetor Float Type
Ignition System Transistorized magneto
Starting System Recoil/electric
Lubrication System Pressure and splash
Governor System Centrifugal mechanical
Air Cleaner Dual element
Oil Capacity 1.1 litres (1.2 U.S. qts)
Fuel Unleaded 86 octane or higher
Dry Weight 32.3 kg (71.2 lbs)
Length (min) 433 mm (17.0″)
Width (min) 382 mm (15.0″)
Height (min) 406 mm (15.9″)

*The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3,600 rpm (net power) and at 2,500 rpm (max net torque). 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.