Husqvarna 545 is developed for demanding work by contractors and land owners. The saw has a ground breaking design and is loaded with raw power for efficient operation. Our unique X-Torq® engine technology provide more power where you need it, up to 20% less fuel consumption and 75% less exhaust emission.
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Cylinder displacement 50.1 cc
Power output 3.35 hp
Maximum power speed 9600 rpm
Fuel tank volume 17.58 fl oz
Fuel consumption 424 g/kWh
Idling speed 2800 rpm
Spark plug NGK CMR6H
Electrode gap 0.02 "
Ignition system SEM-DM61
Torque, max. 2.69 Nm/6600 rpm
Oil tank volume 0.57 US pint
Oil pump capacity 5-12 ml/min
Vibration & noise data
Equivalent vibration level (ahv , eq) front / rear handle 3.8/3.7 m/s²
Sound pressure level at operators ear 106 dB(A)
Sound power level, guaranteed (LWA) 116 dB(A)
Chain speed at max power 60.7 fts
Chain speed at 133% of maximum engine power speed 80.71 fts
Recommended bar length, min-max 13"-20"
Bar mount Small
Weight (excl. cutting equipment) 10.8 lbs
Inertia activated chain brake
Reduces the likelihood of injury due to kickback.
Centrifugal air cleaning system removes larger dust and debris particles before reaching the air filter. This results in reduced air filter cleanings and improved engine life.
Delivers lower fuel consumption and reduced exhaust emission levels in accordance with the world´s most stringent environmental regulations.
Combined choke/stop control
Allows for easier starting and reduces the risk of engine flooding.
System designed to reduce vibration levels to the operator, which lessens fatigue.
The engine and starter have been designed so the machine starts quickly with minimum effort.
Removes air from carburetor and fuel system for easy starting.
Quick-release air filter
Facilitates cleaning and replacement of the air filter.
Snap-lock cylinder cover
Saves time when changing spark plugs and cleaning.
Forged three-piece crankshaft for maximum durability for the toughest applications.
Visible fuel level
Transparent fuel indicator makes it easy to check fuel level.
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.
Adjustable oil pump
Allows you to control oil flow depending on application and weather conditions.
Sturdily built crankcase withstands high rpms and tough professional use, ensuring a long service life.
Distinct, colored marks used for aiming the direction of timber fall.
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.
Low, slender saw body makes the chainsaw easy and convenient to handle in any situation.
Retained bar nuts
The retaining function prevents loosing the bar nuts.
Flip-up tank cap
The flip-up tank cap is easy to open and close when refueling.