01OUTDOOR POWER EQUIPMENT
Compact power for the toughest garden tasks
The King Tech GX25 is a compact petrol engine designed to slot seamlessly into brushcutters, trimmers and other handheld outdoor equipment. Its red casing signals readiness, while its modest footprint ensures it does not overwhelm the tool it powers.
This 25cc four-stroke unit provides consistent 1.0 HP output, making it suitable for homeowners and tradespeople who need dependable performance without excessive weight or fuel consumption.


02DESIGN
A full-cover approach to durability
The engine features a rugged full-cover construction specifically engineered to prevent snagging on branches and scrub. This protective shell encloses the moving parts, allowing the unit to operate confidently in dense vegetation where exposed components might catch or jam.

04VERSATILITY
Operate at any angle with confidence
Thanks to rotary slinger lubrication, this engine maintains proper oil distribution regardless of orientation. It can run flat, vertical, or even upside down, offering flexibility for various mounting positions within different types of outdoor power equipment.
05PRACTICALITY
Simple starting and efficient running
A standard recoil starter provides field-proven simplicity, ensuring the engine fires up reliably every time. The 0.58 litre fuel tank supports longer working stints between refills, while the transistorised ignition system delivers a consistent spark for smooth acceleration.

AT A GLANCE
The key points
- 360-degree operation allows use in any orientation
- Oil-immersed timing belt keeps noise levels low
- Recoil starter ensures simple, reliable ignition
- Full-cover construction prevents snagging on debris
- Weighs just 3.6 kg for easier handheld handling
About this product
When you need a small engine that just gets on with the job, the KingTech GX25 25cc 4-stroke delivers. It fires up clean, pulls hard, and sips fuel, so you spend more time working and less time refilling. The oil-immersed timing belt OHC keeps things quiet and precise, while the 360°-inclinable design means you can run it flat, vertical, or upside down without drama. Low vibration from lighter internals cuts operator fatigue on long shifts. With dependable transistorised ignition and a rugged full-cover construction that won’t snag in scrub, the GX25 is a compact power source built for lawn, garden, farm, and site gear. Reliable. Efficient. Ready to work.
Key Features
- Smooth starting and sharp acceleration for quick, clean work
- Top-class fuel economy and low oil use keeps running costs down
- Oil-immersed timing belt OHC for low mechanical noise
- 360° operation with rotary slinger lubrication — run at any angle
- Low vibration from lighter pistons reduces fatigue in handheld tools
- Full-cover design helps prevent snagging on branches and debris
- Compact 25cc package with strong 1.0 HP @ 7000 rpm output
- Transistorised ignition for consistent spark and reliability
- Recoil starter — simple, field-proven starting every time
- 58 L fuel tank supports long stints between fills
- Durable 4-stroke single-cylinder layout — clean, efficient power
- Versatile powerplant for lawn/garden, ag, construction, and pumps
- Lightweight 3.6 kg build for easier handling on the job
- Designed for low noise, low maintenance and everyday abuse
Specifications
- Engine type
- 4-stroke single cylinder / OHC petrol
- Displacement
- 25.0 cm³
- Bore × Stroke
- 35 × 26 mm
- Compression ratio
- 8.0 : 1
- Net power
- 0.7 kW (1.0 HP) @ 7000 rpm
- Max. net torque
- 1.0 Nm (0.10 kgfm) @ 5000 rpm
- Ignition system
- Transistorised
- Starter
- Recoil
- Fuel tank capacity
- 0.45 L
- Fuel consumption (net power)
- 0.54 L/h @ 7000 rpm
- Lubrication system
- Oil mist / rotary slinger
- Engine oil capacity
- 0.08 L
- Dry weight
- 3.7 kg
- Operating orientation
- 360° inclinable
- In the box
- GX25 engine, Manual
- For returns due to change of mind, a 20% restocking fee will be applied.
- Original freight cost will not be refunded where freight costs were listed separately.















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