Honda GX120 Series Engines

The Honda GX120 delivers reliable, fuel-efficient power in a compact package that’s perfect for your lightweight commercial equipment. With 3.5 HP (2.6 kW) of commercial-grade power, this single-cylinder engine provides the ideal balance of performance and portability at just 29.8 pounds. You get Honda’s legendary reliability in a size that’s perfect for powering pumps, small construction equipment, and agricultural applications without excess weight or fuel consumption.

Right-Sized Power for Demanding Applications

Wondering if the GX120’s 118cc displacement is enough for your needs? This efficient powerhouse delivers 5.4 lb-ft of torque at 2500 RPM, providing responsive power for equipment like concrete vibrators, power trowels, and water pumps. You get consistent performance that handles load variations with ease, even in demanding job site conditions.

Easy to Start, Simple to Maintain

The GX120’s automatic mechanical decompression system ensures quick, easy starts every time – even in cold weather. You’ll appreciate the low effort recoil starting that reduces operator fatigue when restarting throughout the workday. The dual-element air cleaner extends maintenance intervals while protecting the engine in dusty environments common on construction sites and agricultural applications.

• OHV design improves fuel efficiency with lower operating costs (0.51 L/hr at 3600 RPM)
• Cast iron cylinder sleeve ensures exceptional durability and longer service life
• Oil Alert® system prevents engine damage by automatically shutting down when oil levels are low
• Transistorized ignition delivers reliable starts in varying weather conditions
• EPA and CARB emission compliant with low noise rating (69 dB(A))