Description
Overview:
The Honda GX120 SX4 petrol engine is a compact, horizontal-shaft power source built for dependable use on site or in the workshop. It uses a durable aluminium crankcase with a cast iron cylinder sleeve to extend service life. With 118 cm3 displacement and an 18 mm parallel shaft output, it suits many light construction and garden machines that need steady, controllable power. The engine delivers 2.6 kW (3.5 HP) at 3600 rpm, with a rated continuous output of up to 2.1 kW (2.8 HP). A transistorised ignition and recoil starter make starting straightforward, while the 2.0 L fuel tank supports long running. Typical applications include equipment using GX120 SX4 or GX120K1 footprints where a compact replacement engine is required.
Key Features:
- 118 cm3 single-cylinder, 4-stroke OHV design for efficient, reliable running
- 18 mm parallel shaft output for straightforward coupling to compatible equipment
- Net power 2.6 kW (3.5 HP) at 3600 rpm; continuous rated power up to 2.1 kW (2.8 HP) at 3600 rpm
- Maximum net torque 7.3 Nm at 2500 rpm for strong low-speed performance
- Cast iron cylinder sleeve for wear resistance and longer service life
- Transistorised ignition and recoil starter for consistent, easy starts
- Compact size: 305 x 346 x 329 mm; dry weight: 13 kg for easy installation
- Fuel tank capacity 2.0 L; consumption approx. 1.0 L/h at continuous rated power
- Bore x stroke: 60 x 42 mm, providing smooth running and good fuel economy
- Robust metal shroud and practical layout for straightforward servicing
Typical Applications:
Suitable for plate compactors, concrete mixers, screeds, trowels, pressure washers, small generators, water pumps, turf cutters, scarifiers, tillers, and other light plant where a horizontal 18 mm parallel shaft engine is required. Ideal as a direct replacement for worn engines on construction and landscaping machinery.
Also known as:
Small petrol motor, horizontal-shaft motor, 4-stroke internal combustion engine, single-cylinder petrol powerplant, drive engine, replacement small engine, compact petrol unit.
Fits Models:
GX120 SX4, GX120K1, GX120SX4, GX120T1, GX120T2, GX120U1, GX120UT1, GX120UT2
Alternate Part Numbers:
HEGX120SX4, GX120SX4, GX120 SX, GX120SX
Product Specifications
| L&S Part No. | GX120 SX4 |
|---|---|
| Manufacturer | Honda |
| OEM No. | EGX120SX4 |
| Unit of Sale | 1 |
| Applications | GX120 SX4, GX120K1, GX120SX4, GX120T1, GX120T2, GX120U1, GX120UT1, GX120UT2 |
| Fits Brands | Honda |
| Fits Models | GX120K1 (GC01) | GX120T1 (GCAAT) | GX120UT1 (GCAGT) | GX120U1 (GCAHK) | GX120UT2 (GCBMT) | GX120T2 (GCBNT) |
