2025 545 Mark II

2025 Husqvarna 545 Mark II

Overview

Availability Brochure
Model 545 Mark II
Year 2025
Make Husqvarna

Product Features

Description

Best in class cutting capacity. The second generation of Husqvarna’s 545 chainsaw is a 50cc unit that’s ready for your felling, limbing and bucking of small and midsize trees. Designed for professional forestry and tree care crews, this durable saw has improved power and a slimmed-down design. A host of innovative features guarantee comfortable and efficient operation, season after season.
Features
  • Excellent cooling capacity for a longer engine life: Our new cooling system is optimised in every detail to give you a reliable chainsaw for any situation.
  • AutoTune: AutoTune gives optimal engine performance throughout automatic engine setting. No time spent on carburetor adjustments. It compensates for different fuels, altitude, humidity, temperature and clogged air filter.
  • Magnesium crankcase: Sturdily built crankcase withstands high rpms and tough professional use, ensuring a long service life.
  • Smart Start® Technology: Specially-designed engine and starter for easy and fast starting with minimum effort
  • Snap-Lock Cylinder Cover: Saves time when changing spark plugs and cleaning.
  • Fuel Indicator: Transparent fuel indicator makes it easy to check fuel level
  • Retained bar nuts: The retaining function prevents loosing the bar nuts.
  • Quick-Release Air Filter: Easily remove and replace the filter after cleaning
  • Retained starter screws: A retaining function prevents the accidental loss of the screws holding the starter.
  • Flip-Up Fuel Cap: Easy to open and secures firmly, even when wearing thick gloves
  • LowVib® Technology: Dampeners between the engine and chassis significantly reduce vibrations so you can work more comfortably
  • Felling sight to last a lifetime: Having a perfect sight is critical when using a chainsaw – so we made one that’s permanently molded into the chainsaw for long-lasting felling accuracy.
  • 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
  • Easy to start: Combined start/stop switch and fuel pump make the saw very easy to start.
  • Side-Mounted Chain Tensioner: Easier access to chain tensioning device.
  • Slimmed-down design: Low, slender saw body makes the chainsaw easy and convenient to handle in any situation.
  • Powerful and Efficient X-TORQ® Engine: X-Torq® engines deliver a great power and torque thanks to highly efficient combustion.
  • Three-Piece Crankshaft: Forged three-piece crankshaft delivers maximum durability for even the toughest of jobs
Engine
  • Chain speed at max power: 62.7 fts
  • Cylinder displacement: 50.1 cm³
  • Output shaft power1: 3.6 hp
  • Torque, max.: 2.95 Nm
  • Torque, max. at rpm: 7,200 rpm
  • Clutch engagement speed (±120): 3,900 rpm
  • Electrode gap: 0.02 in
  • Idling speed: 2,800 rpm
  • Ignition module air gap: 0.01 in
  • Maximum power speed: 9,900 rpm
  • Oil pump type: Adjustable flow, no flow at idle
  • Spark Plug: NGK CMR6H
Equipment
  • Recommended bar length, min: 13 in
  • Pitch: .325″
  • Recommended bar length, max: 20 in
  • Chain type: SP33G
  • Bar length: 40 cm
  • Bar length (inch): 16 in
  • Sprocket type: Rim 7
  • Gauge: .050″
Dimensions
  • Weight (excl. cutting equipment): 11.7 lb
Sound and noise
  • Sound pressure level at operators ear: 106 dB(A)
  • Sound power level, guaranteed (LWA): 115 dB(A)
  • Sound power level, measured: 113 dB(A)
Vibration
  • Equivalent vibration level (ahv, eq) rear handle: 4.6 m/s²
  • Equivalent vibration level (ahv, eq) front handle: 4 m/s²
Lubricant
  • Oil tank volume: 0.68 US pint
  • Lubricant type (Engine): Husqvarna 2 stroke or equiv. at 50:1
Emission
  • Exhaust emissions (CO2 EU V)2: 844 g/kWh
Displacement

50.1 cc

Weight

11.7 lb

Bar Length Options

16 in.

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