Gasoline brush cutter 545RXT AutoTune™

Product overview
Husqvarna 545RXT AutoTune™ is a professional petrol brushcutter engineered for clearing and trimming long stretches of heavy grass and dense vegetation. It pairs a 45.7 cm³ X-Torq® engine with AutoTune™ automatic engine adjustment to maintain consistent performance across varying fuel qualities, climates and altitudes. The machine features a long straight shaft for extended reach, Balance XT harness and LowVib® vibration damping to reduce operator fatigue during extended use. Simplified starting (purge, push start button and pull cord), Tap'n Go line feed and magnetic locking pin holder ensure efficient on-site operation and quick tool changes.

Key features

• Simplified start sequence: purge, push start button and pull cord
• AutoTune™: automatic engine adjustment for consistent power in varied conditions
• X-Torq® engine: improved fuel efficiency and reduced emissions
• Straight long shaft (1,465 mm) for extended reach
• Balance XT harness (adjustable hook eyelet) for optimized balance
• Tap'n Go trimmer head: high line capacity and fast reloading
• LowVib® system: effective vibration damping for left and right handles
• Transparent fuel tank for quick fuel checks
• Auto return stop switch for seamless restart
• Magnetic locking pin holder for easy change of cutting equipment

Included / Not included
Included

• Grass blade: Multi 300-3
• Harness: Balance XT2
• Trimmer head: T45X M12
• Product designation on unit: 967 17 67‑06

Not included

• Saw blade (not included)

Specifications (key values)
Engine - Cylinder displacement: 45.7 cm³
Engine - Output shaft power: 2.2 kW
Engine - Fuel tank volume: 1 l
Engine - Fuel consumption: 450 g/kWh
Engine - Maximum power speed: 9,000 rpm
Engine - Idling speed: 2,700 rpm
Engine - Maximum rpm output shaft: 8,800 rpm
Engine - Electrode gap: 0.5 mm
Engine - Clutch engagement speed: 3,900 rpm (±120)
Engine - Torque, max.: 2.6 Nm at 6,600 rpm
Engine - Spark plug: NGK CMR6H
Capacity - Cutting width: 49 cm
Dimensions - Tube diameter: 32 mm
Dimensions - Tube length: 1,465 mm
Dimensions - Weight (excl. cutting equipment): 8.7 kg
Transmission - Gear ratio: 1.4
Transmission - Drive gear angle: 35 °
Sound - Sound pressure level at operator's ear (LpA): 100 dB(A)
Sound - Sound power level, guaranteed (LWA): 117 dB(A)
Emission - Exhaust emissions (HC average) EU: 45.98 g/kWh
Emission - Exhaust emissions (CO average) EU: 283.71 g/kWh
Emission - Exhaust emissions (CO average) EPA: 268.74 g/kWh
Emission - Exhaust emissions (NOx average) EU: 1.28 g/kWh
Emission - Exhaust emissions (NOx average) EPA: 1.09 g/kWh
Emission - Exhaust emissions (CO₂ EU V): 856 g/kWh
Vibration - Equivalent vibration level (ahv, eq) left handle: 3.3 m/s²
Vibration - Equivalent vibration level (ahv, eq) right handle: 3.5 m/s²

Technical data

• Model: 545RXT AutoTune™
• Brand: Husqvarna
• Cylinder displacement: 45.7 cm³
• Output shaft power: 2.2 kW
• Fuel tank volume: 1 l
• Fuel consumption: 450 g/kWh
• Cutting width: 49 cm
• Weight (excl. cutting equipment): 8.7 kg
• Tube length: 1,465 mm
• Tube diameter: 32 mm
• Gear ratio: 1.4
• Drive gear angle: 35 °
• Sound pressure level (LpA): 100 dB(A)
• Guaranteed sound power (LWA): 117 dB(A)
• Spark plug: NGK CMR6H