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Honda GX120 Engine – Horizontal Crankshaft

Quality and performance come standard.
The GX120 offers lower noise levels, lower vibration, and lower emissions without sacrificing power output or performance. And the current GX120 essentially matches the dimensions of previous models, so no modifications to existing equipment designs are necessary.

Common Applications:

  • Commercial lawn and garden equipment
  • Tillers/cultivators
  • Generators
  • Construction/industrial equipment
  • Agricultural equipment
  • Water pumps
Features:

 

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Description

Spec Sheet
Specifications
Engine Type Air-cooled 4-stroke OHV
Bore x Stroke 60 mm x 42 mm
Displacement 118 cm3
Net Power Output* 3.5 HP (2.6 kW) @ 3,600 rpm
Net Torque 5.4 lb-ft (7.3 Nm) @ 2,500 rpm
PTO Shaft Rotation Counterclockwise (from PTO shaft side)
Compression Ratio 8.5:1
Fuel Tank Capacity 2.0 litres (2.1 U.S. qts)
Lamp/Charge coil options 25W, 50W
Carburetor Butterfly
Ignition System Transistorized magneto
Starting System Recoil
Lubrication System Splash
Governor System Mechanical
Air Cleaner Dual element
Oil Capacity 0.56 litres (0.59 U.S. qts)
Fuel Unleaded 86 octane or higher
Dry Weight 13.0 kg (29 lbs.)
Dimensions
Length (min) 297 mm (11.7”)
Width (min) 346 mm (13.6”)
Height (min) 329 mm (13.0”)


*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.