ID # 52876848

HUSQVARNA 450S Rancher 20", .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23-18

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Overview

Our Best-Selling Rancher® Series

Husqvarna 450S is a landowner chainsaw designed to tackle everything from forestry tasks like felling, cutting, and limbing to cutting firewood. Based on the reliable 400 series, this light chainsaw boasts a reinforced, robust design to increase product lifetime. It is equipped with a powerful and optimized 2.4 kW X-Torq® engine for increased performance. The refined starting procedure is further improved by the Smart Start® feature. Additional features, such as colored felling marks and captured bar nut, enhance the overall experience.

Specifications
Model
450S Rancher
Category Name
Lawn / Garden
Year
2026
Sale Type
New
Manufacturer
Husqvarna
features

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 20% faster cutting

Improved cutting capacity for increased efficiency and productivity. *Compared to the Husqvarna 450 Rancher®.

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Automatic oil pump

Adjusts oil flow as needed to ensure optimal bar & chain performance

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Flip-Up Fuel Cap

The flip-up fuel cap is easy to open and close when refueling, even if you are wearing thick gloves.

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Quick-Release Air Filter

Easily remove and replace the filter after cleaning

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Smart Start® Technology

Specially-designed engine and starter for easy and fast starting with minimum effort

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Auto return stop switch

When the stop switch has been used, it is automatically reset to facilitate the next start.

Air Injection™ Technology

Centrifugal air cleaning system expels larger dust and debris particles before they reach the air filter to help improve engine life and provide longer run time between filter cleanings.

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Powerful and Efficient X-TORQ® Engine

Our X-TORQ® engines deliver great power and torque thanks to highly efficient combustion.

 

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Fuel Indicator

Transparent fuel indicator makes it easy to check fuel level

Snap-Lock Cylinder Cover

Saves time when changing spark plugs and cleaning

Inertia-Activated Chain Brake

In case of a kickback, the effective inertia-activated chain brake immediately stops the chain to reduce the likelihood of injury.

LowVib® Technology

Effective LowVib® dampeners absorb vibration, sparing the user’s arms and hands.

HUSQVARNA 450S Rancher 20, .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23 18 Felling Marks

Dedicated marks for increased felling precision

engine
Engine
20", .325, Smart Start, US/CA, UA, single pack, CFTBx SKU: 970 70 23‑18
Spark Plug
Champion RCJ7Y, Husqvarna HQT-1R, NGK BPMR7A
Idling Speed
2,800 rpm
Power Output
3.2 hp
Torque, Max.
2.6 Nm
Electrode Gap
0.02 in
Oil Pump Type
Automatic
Maximum Power Speed
9,600 rpm
Torque, Max. At Rpm
6,900 rpm
Cylinder Displacement
50.2 cm³
Ignition Module Air Gap
0.01 in
Chain Speed At Max Power
60.7 fts
Clutch Engagement Speed (±120)
4,150 rpm
equipment
Gauge
1.3 mm
Pitch
.325"
Bar Length
50 cm
Chain Type
SP33G
Sprocket Type
Spur 7
Bar Length (inch)
20 in
Recommended Bar Length, Max
20 in
Recommended Bar Length, Min
13 in
vibration
Equivalent Vibration Level (ahv, Eq) Rear Handle
4.1 m/s²
Equivalent Vibration Level (ahv, Eq) Front Handle
3.9 m/s²
dimensions
Weight (excl. Cutting Equipment)
11 lbs
sound and noise
Sound Power Level, Measured
114 dB(A)
Sound Power Level, Guaranteed (LWA)
116 dB(A)
Sound Pressure Level At Operators Ear (LpA)
106 dB(A)
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)
718 g/kWh
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