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Husqvarna 545 AutoTune 18" X-Torq Gas Chainsaw

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Engine Specification

Cylinder Displacement 50.1 cc
Power Output 3.35 hp
Maximum Power Speed 9600 rpm
Idling Speed 2800 rpm
Spark Plug NGK CMR6H
Electrode Gap 0.02"
Fuel Tank Volume 17.58 fl oz
Fuel Consumption 424 g/kWh
Torque, Max 2.69 Nm/6600 rpm
Auto Tune Yes


Oil Tank Volume 0.57 US Pint

Cutting Equipment

Chain Pitch .325"
Bar Length 18"
Chain Speed at Max Power 60.7 fts
Chain Gauge .050"

Vibration & Noise Data

Equivalent Vibration Level front / rear handle 2.8/3.7 m/s²
Sound Pressure Level at Operators Ear 106 dB(A)
Sound Power Level 116 dB(A)

Overall Dimensions

Weight (excl. cutting equipment) 10.8 lbs


Husqvarna Warranty 2-year Consumer Warranty

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.

Product Rating

Customer Reviews

Bought this saw and have been using it now for 4 weeks. Mostly laying hedgesand its amzingly light. When i did cut logs up to 15" it handles them perfectly for a 50cc saw.

Light, i have tendonitis and i have used this for 4 weeks 6-8 hours a days and no complaints
Fast acceleration, very zippy
great power to weight ratio
Easy to start. Cold follow instructions on saw, Warm forget instructions just move starting switch and pull, she'll fire first or second time, really easy starter.

The spikes could be a bit longer as the exhaust tends to get very close when in bigger wood and, to be fair its only a niggle. No real faults with saw

A great 50cc saw, well worth the money over the homeowner range which i wouldn't touch, for the extra $$$ you get a much more capable saw, granted about 10% less power and no rev boost compared to the 550XP but it's a lot of cheaper. I personally cant justify the extra $$$ and lets not take away from the 545 it's a great little saw. Does anything you ask of it. Its my go to saw when i reach into the van now.

Thanks to Dan and The crew for their service, this isnt the saw i bought from them and they are always helpful, recommend their great service

Dave Snoddy

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Husqvarna 545 AutoTune 18" X-Torq Gas Chainsaw