2025 Husqvarna 450 20"

450 Rancher

Blaze through any task with the Husqvarna 450 Rancher®. This robust gas saw features Smart Start® technology and air purge to deliver best-in-class starting performance.\* Our proprietary X-TORQ® engine delivers superior performance, increased fuel efficiency and low emissions. And the ergonomic design with LowVib® technology make this saw comfortable to use, even in demanding conditions.

Features* Powerful and Efficient X-TORQ® Engine: X-Torq® engines deliver a great power and torque thanks to highly efficient combustion.
* LowVib® Technology: Dampeners between the engine and chassis significantly reduce vibrations so you can work more comfortably
* Smart Start® Technology: Specially-designed engine and starter for easy and fast starting with minimum effort
* Quick Start with Air Purge: Air purge removes air from carburetor and fuel system for easy starting
* Air Injection™ Technology: Centrifugal air cleaning system expels larger dust and debris particles before they reach the air filter to help improve engine life
* Three-Piece Crankshaft: Forged three-piece crankshaft delivers maximum durability for even the toughest of jobs
* Inertia-Activated Chain Brake: Reduces the likelihood of injury due to kickback.
* Quick-Release Air Filter: Easily remove and replace the filter after cleaning
* Fuel Indicator: Transparent fuel indicator makes it easy to check fuel level
* Flip-Up Fuel Cap: Easy to open and secures firmly, even when wearing thick gloves
* Snap-Lock Cylinder Cover: Saves time when changing spark plugs and cleaning.
* Felling Marks: Dedicated marks for increased felling precision
* No Oil at Idle: Chain oil pump disengages when engine is idling to reduce oil consumption and mess
* Side Chain Tensioning: Quickly and easily adjust the chain
* Best-in-Class Starting Performance\*: Variety of easy starting features for hassle-free starting \*Based on the series of Husqvarna features that support the starting performance when compared to competitive chainsaw models in the 35cc to 50cc range
* X-CUT® Chain: Exceptional sharpness and durability

Engine* Chain speed at max power: 56.76 fts (17.3 m/s)
* Cylinder displacement: 50.2 cm³
* Output shaft power1: 3.2 hp (2.4 kW)
* Torque, max.: 2.6 Nm
* Torque, max. at rpm: 7,200 rpm
* Clutch engagement speed (±120): 4,300 rpm
* Electrode gap: 0.02 in
* Idling speed: 2,700 rpm
* Ignition module air gap: 0.01 in
* Maximum power speed: 9,000 rpm
* Oil pump type: Fixed flow
* Spark Plug: Champion RCJ7Y, NGK BPMR7A

Equipment* Recommended bar length, min: 13 in (33 cm)
* Pitch: .325"
* Recommended bar length, max: 20 in (50 cm)
* Chain type: SP33G
* Bar length: 50 cm
* Bar length (inch): 20 in
* Sprocket type: Spur 7
* Gauge: .050"

Dimensions* Weight (excl. cutting equipment): 11.33 lbs (5.1 kg)

Sound and noise* Sound pressure level at operators ear: 104 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: 4.9 m/s²
* Equivalent vibration level (ahv, eq) front handle: 3.1 m/s²

Lubricant* Oil tank volume: 0.55 US pint
* Lubricant type (Engine): Husqvarna 2 stroke or equiv. at 50:1

Emission* Exhaust emissions (CO2 EU V)2 : 742 g/kWh