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Husqvarna 545 RSN Chainsaw 20" #966648591

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Husqvarna 545 Mark II Chainsaw 20″ #967690640
GTIN: 024761038454 SKU 545-20 RSN Categories , Tags , , Brand:

The Husqvarna 545 RSN Chainsaw 20″, repping a 20 inch bar and 50.1cc engine, brings efficient power and sleek ergonomics for a comfortable high-performance.

A fantastic fit for both tree care professionals and landowners, this heavy-duty saw is powered by an environmentally friendly X-Torq® engine that cuts down on fuel use and emissions so you can have a comfortable, convenient and conscientious time out in the trees.

This saw features LowVib® and SMART START® technology for effortless handling and easy starting every use, while a heavy-duty magnesium crankcase ensures durability so your saw will last for season after season.

Feature Highlights

X-Torq engine

In line with the world’s most impressive environmental standards, the X-Torq engine boasts for all-time low fuel consumption and limits exhaust emission for performance you and the earth will feel good about.

Air Injection

Clear out dust, dirt, and debris from the engine before they even get to the air filter with the Centrifugal air cleaning system for longer, more efficient engine life.

LowVib® Vibration-reduction system for operator comfort

Heavy, consistent vibrations can wear on the body when getting good work done in the yard. This saw utilizes a vibration reduction system to minimize vibration and increase your comfort so you can focus on buzzing the greenery, not the buzzing in your body.


AutoTune provides automatic engine settings so you can spend less time adjusting the carburetor and let the system find the right setting for your fuel, altitude, humidity and temperature.


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Weight 16 lbs
Dimensions 20 × 12 × 13 in

Bar length 20 inch(es)
Maximum bar length 20 inch(es)
Chain size .325 .050-78
Sound/Noise 116 dB
Displacement 50.1 cc
Grade Commercial, full
Fuel tank volume 1.1 pints
Horsepower 3.35 hp
Maximum RPM 9600
Manufacturer Husqvarna
MPN 966648591
Warranty 2 years
Weight 10.8 pounds
Chain part number 581643678
Bar part number 596008978
Accessories MPN
Carrying case 100000107
Ear muffs 531300089
Ear plugs 589493002
Chain (OEM) 581643672
Bar (OEM) 596008972
Chain (Oregon) 20LPX072G
Protective eyewear 501234513
Protective eyewear (tinted) 501234502
Protective chaps 531309503
Protective apparel kit 588100503
Forest helmet 592752701
Saw file 588246101
Saw file kit 586933403