Honda GX120 Engine

Honda GX120 Engine

The GX120 Engine delivers reliable, easy starting, fuel efficient performance, day in and day out.

Common Applications

The GX120 engine is frequently used by customers in commercial lawn and garden equipment.

It’s also used to power construction/industrial equipment, as well as in agricultural settings – including the powering of water pumps.

Fuel Efficient, High Output Operation

The GX120’s Precision Camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency.

It draws on decades of Honda engineering with its OHV design, delivering increased efficiency and optimal power transfer for where you need it.

Smooth Operator

A ball bearing-supported crankshaft and precision engineered components result in greater stability and lower vibration.

The use of lightweight, noise-reducing materials and a forged steel crankshaft & rigid crankcase results in an exceptionally quiet engine that incorporates a large capacity, multi-chamber exhaust system.

The GX120 also features a sophisticated air intake system, oil alert, large fuel tank, dual element air cleaner, easily accessible spark plug and cast iron cylinder sleeve.


The GX120 is covered by an extensive Honda 3 Year Warranty*, and with 400+ authorised Honda dealers nationwide, you’ll get support wherever you are.

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*3-year warranty applies to Domestic and Commercial use