Husqvarna 525HE4 is a 25cc, high reach pole hedge trimmer with a 60cm cutter bar and high knife speed, designed for professional users. With the outstanding reach of up to 4 meters, 37 mm blade pitch and durable 135° angle adjustment you comfortably and efficiently trim all high, wide and low hedges. The engine serves as a counterweight and makes the machine exceptionally well-balanced and comfortable to use. Equipped with heavy-duty gearbox and intuitive controls for easy starting.

Cylinder displacement Weight
25.4 см³ 6.3 kg


  • X-Torq® engine cuts emission and fuel consumption
  • Smart Start® for easy starting
  • Adjustable cutter bar for greater versatility
  • Extended reach with long cutter bar
  • Auto return stop switch for easy starting
  • Rear impact guard
  • Intuitive controls
  • Easy to service and maintain starter
  • Cutter bar can be set in transport mode
  • Air purge for easier cold starting
Adjustable cutting bar

Adjustable cutting bar for greater versatility and less tiring work.


Smart Start®

The engine and starter have been designed so the machine
starts quickly with minimum effort. Resistance in the starter cord is reduced by up to 40%.

X-Torq® engine

The X-Torq® engine design reduces harmful exhaust emissions by up to 75% and increases fuel efficiency by up to 20%.
to facilitate cutting the sides and top of hedges.

Long cutter bar

Long cutter bar for extended reach


Clutch engagement speed (±120) 4700 rpm
Clutch engagement upper limit 5500 rpm
Cutting speed 4300 cut/min
Idling speed 3000 rpm
Idling upper limit 4000 rpm
Knife adjustment range, up/down Down 90°
Knife adjustment range, up/down Up 45°
Maximum power speed 8500 rpm
Power output 1kW
Racing speed lower limit 10000 rpm
Teeth opening 30 mm
Torque, max. 1.2 Nm
Torque, max. at rpm 6000 rpm
Article gross weight 7810 g
Article net weight 7000 g
Knife Length 60 cm
Weight 6.3 kg
Cylinder bore 34 mm
Cylinder displacement 25.4 см³
Cylinder stroke 28 mm
Engine Family CARB HQZS.0254HD
Engine Family EPA HQZS.0254HD
Gear ratio 1
Spark plug Husqvarna HQT-2
Fuel consumption 600 g/kWh
Fuel consumption 0.6 g/kWh
Fuel tank volume 0.5 l
Lubricant type Husqvarna 2 stroke or equiv. at 50:1
Power/fuel type Gasoline
Emission Data Carb
Engine Family EPA HQZS.0254HD
Engine Family CARB HQZS.0254HD
Exhaust emissions (CO average) 254.31 g/kWh
Exhaust emissions (CO average) 1120 g/kWh
Exhaust emissions (HC average) 32.47 g/kWh
Exhaust emissions (NOx average) 0.2 g/kWh
Emission Data EPA
Exhaust emissions (CO average) 254.31 g/kWh
Exhaust emissions (CO FEL) 536 g/kWh
Exhaust emissions (CO average) 1120 g/kWh
Exhaust emissions (HC average) 32.47 g/kWh
Exhaust emissions (NOx average) 0.2 g/kWh
Emission Data EU
Exhaust emissions (CO average) 418 g/kWh
Exhaust emissions (CO FEL) 1141 g/kWh
Exhaust emissions (CO average) 1141 g/kWh
Exhaust emissions (HC average) 29.55 g/kWh
Exhaust emissions (NOx average) 0.31 g/kWh
Sound and Noise
Sound power level, guaranteed (LWA) 107 db(A)
Sound power level, measured 106 db(A)
Sound pressure level at operators ear 95 db(A)
Daily Vibration (Aeqv) 4.6 m/s²
Daily Vibration Exposure (A8) 3.0 m/s²
Daily Vibration Time (Time factor) 3.5 h
Equivalent vibration level (ahv, eq) front handle 4.6 m/s²
Equivalent vibration level (ahv, eq) rear handle 3.9 m/s²