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2025 543 XP®

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2025 Husqvarna 543 XP®

Overview

Availability Brochure
Model 543 XP®
Year 2025
Make Husqvarna

Product Features

Description

The light and effective Husqvarna 543 XP® is developed for tree care professionals and skilled land owners. The low weight and high chain speed lead to efficient limbing work. Our unique X-Torq® engine technology provides more power where you need it, up to 20% less fuel consumption and up to 75% less exhaust emission.
Features
  • Powerful and Efficient X-TORQ® Engine: X-Torq® engines deliver a great power and torque thanks to highly efficient combustion.
  • Air Injection™ Technology: Centrifugal air cleaning system expels larger dust and debris particles before they reach the air filter to help improve engine life
  • Adjustable Oil Pump: Customize and control oil flow to meet any need
  • Simple Starting: Stop switch automatically resets to ON so trimmer is ready for next use
  • LowVib® Technology: Dampeners between the engine and chassis significantly reduce vibrations so you can work more comfortably
  • Side-Mounted Chain Tensioner: Easier access to chain tensioning device.
  • Quick Start with Air Purge: Air purge removes air from carburetor and fuel system for easy starting
  • Magnesium crankcase: Sturdily built crankcase withstands high rpms and tough professional use, ensuring a long service life
  • Three-Piece Crankshaft: Forged three-piece crankshaft delivers maximum durability for even the toughest of jobs
  • Smart Start® Technology: Specially-designed engine and starter for easy and fast starting with minimum effort
  • Inertia-Activated Chain Brake: Reduces the likelihood of injury due to kickback.
  • Felling marks: Distinct, colored marks used for aiming the direction of timber fall.
Engine
  • Chain speed at max power: 60.7 ft (18.5 m/s)
  • Cylinder displacement: 43.1 cm³
  • Power output: 2.95 HP (2.2 kW)
  • Torque, max.: 2.4 Nm
  • Torque, max. at rpm: 7,200 rpm
  • Electrode gap: 0.03 in
  • Idling speed: 2,700 rpm
  • Ignition module air gap: 0.02 in
  • Maximum power speed: 9,600 rpm
  • Oil pump capacity, max: 13 ml/min
  • Oil pump capacity, min: 3 ml/min
  • Oil pump type: Adjustable flow, no flow at idle
  • Spark Plug: NGK CMR7H
Equipment
  • Recommended bar length, min: 13 in (33 cm)
  • Pitch: .325 in
  • Recommended bar length, max: 18 in (45 cm)
  • Chain type: SP33G
  • Bar length: 40 cm
  • Bar length (inch): 16 in
  • Gauge: .050″
Dimensions
  • Weight (excl. cutting equipment): 9.92 lb (4.5 kg)
Sound and noise
  • Sound pressure level at operators ear: 101 dB(A)
  • Sound power level, guaranteed (LWA): 113 dB(A)
  • Sound power level, measured: 112 dB(A)
Vibration
  • Equivalent vibration level (ahv, eq) rear handle: 4.2 m/s²
  • Equivalent vibration level (ahv, eq) front handle: 4.5 m/s²
Lubricant
  • Oil tank volume: 0.57 US pint
  • Lubricant type (Engine): Husqvarna 2 stroke or equiv. at 50:1
Emission
  • Exhaust emissions (CO2 EU V): 780 g/kWh
Displacement

43.1 cc
Weight

9.92 lb (4.5 kg)
Bar Length Options

16 in (40 cm)
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