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Product description
Discover the gold standard in heavy-duty, workhorse chainsaws. Husqvarna’s world-renowned 455 Rancher is an ideal saw for landowners and part-time users who require a high-powered, responsive workmate for all cutting conditions. It combines the raw power of an X-Torq® engine with new innovations, such as the LowVib® anti-vibration and Smart Start® recoil systems. Prepare to get the job done with this outstanding saw.

Air Injection®
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.

Side-mounted chain tensioner
Easier access to chain tensioning device.

X-Torq®
The powerful and efficient X-Torq® engine cuts both engine emissions and fuel consumption, improving your working environment and saving you money at the gas pump.

LowVib®
System designed to reduce vibration levels to the operator, which lessens fatigue.

Adjustable oil pump
Allows you to control oil flow depending on application and weather conditions.

Quick-release air filter
Facilitates cleaning and replacement of the air filter.

Felling marks
Distinct marks for better felling precision.

Combined choke/stop control
Allows for easier starting and reduces the risk of engine flooding.

Three-piece crankshaft
Forged three-piece crankshaft for maximum durability for the toughest applications.

Smart Start®
The engine and starter have been designed so the machine starts quickly with minimum effort.

Front handle ergonomics
Better grip and a 7° offset handle reduce fatigue.

Inertia activated chain brake
Reduces the likelihood of injury due to kickback.

Air Purge
Removes air from carburetor and fuel system for easy starting.

Engine
Power output 3.5 hp
Cylinder displacement 55.5 cm³
Maximum power speed 9,000 rpm
Max engine/motor RPM 13,300 rpm
Idling speed 2,700 rpm
Torque, max. 3.2 Nm
Torque, max. at rpm 6,600 rpm
Clutch engagement speed (±120) 3,900 rpm
Fuel consumption 407 g/kWh
Spark plug NGK BPMR7A, Champion RCJ7Y
Electrode gap 0.02 in
Ignition module air gap 0.01 in
Oil pump type Automatic
Oil pump capacity Max 17 ml/min
Oil pump capacity Min 6 ml/min
Exhaust emissions (CO2 EU V) 893 g/kWh

Equipment
Bar length (inch) 20 in
Recommended bar length, min-max 13-24 in
Pitch 3/8″
Sprocket type Spur 7

Dimensions
Weight (excl. cutting equipment) 13.2 lbs

Lubricant
Lubricant type Husqvarna 2 stroke or equiv. at 50:1
Oil tank volume 0.7 US pint

Sound and noise
Sound power level, guaranteed (LWA) 114 dB(A)
Sound power level, measured 112 dB(A)
Sound pressure level at operators ear 104 dB(A)

Vibrations
Equivalent vibration level (ahv, eq) front handle 3.8 m/s²
Equivalent vibration level (ahv, eq) rear handle 6.9 m/s²

Weight 7 lbs
Dimensions 22 × 11 × 14 in
MPN

Manufacturer Husqvarna
MPN 455-20R
Warranty
Accessories MPN