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Chainsaws

Husqvarna 450S Rancher

 
 
 
50.2 cm³
Cylinder displacement
3.2 hp
Power output1
60.7 fts
Chain speed at max power
 
 
 
 
 
 
 
 
What's included
Husqvarna 450S Rancher - 970 70 23‑18
Included
  • Nose type
    Sprocket nose
  • Spikes
    Mounted
  • Chain type
    SP33G
  • Bar length (inch)
    20 in

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.

Features

Specifications

Compare specifications and features with similar Husqvarna products.
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Engine - Compare specifications across different product articles
Engine
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Chain speed at max power

60.7 fts

Cylinder displacement

50.2 cm³

Power output

1
3.2 hp

Torque, max.

2.6 Nm

Torque, max. at rpm

6,900 rpm

Clutch engagement speed (±120)

4,150 rpm

Electrode gap

0.02 in

Idling speed

2,800 rpm

Ignition module air gap

0.01 in

Maximum power speed

9,600 rpm

Oil pump type

Automatic

Spark Plug

Champion RCJ7Y, Husqvarna HQT-1R, NGK BPMR7A
Equipment - Compare specifications across different product articles
Equipment
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Recommended bar length, min

13 in

Pitch

.325"

Recommended bar length, max

20 in

Chain type

SP33G

Bar length

50 cm

Bar length (inch)

20 in

Sprocket type

Spur 7

Gauge

1.3 mm
Dimensions - Compare specifications across different product articles
Dimensions
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Weight (excl. cutting equipment)

11 lbs
Sound and noise - Compare specifications across different product articles
Sound and noise
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Sound pressure level at operators ear (LpA)

106 dB(A)

Sound power level, guaranteed (LWA)

116 dB(A)

Sound power level, measured

114 dB(A)
Vibration - Compare specifications across different product articles
Vibration
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Equivalent vibration level (ahv, eq) rear handle

4.1 m/s²

Equivalent vibration level (ahv, eq) front handle

3.9 m/s²
Lubricant - Compare specifications across different product articles
Lubricant
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Oil tank volume

0.55 US pint

Lubricant type (Engine)

Husqvarna 2 stroke or equiv. at 50:1
Emission - Compare specifications across different product articles
Emission
20", .325, Spring-Assist, US/CA, UA, single pack, CFTBx
SKU: 970 70 23‑18

Exhaust emissions (CO₂ EU V)

2
718 g/kWh

Services

Owner support

Manuals, handbooks, spare parts, guides, and related information for 450S Rancher can be found in the product support.
Product support for 450S Rancher
Disclaimer:
  • 1Power output: Petrol products - Net power rating as per ISO 7293, Battery products measured comparable to petrol products
  • 2Exhaust emissions (CO₂ EU V): This CO2 measurement results from testing over a fixed test cycle under laboratory conditions a(n) (parent) engine representative of the engine type (engine family) and shall not imply or express any guarantee of the performance of a particular engine.

Frequently asked questions

What is the Husqvarna 445S designed for?

The 445S is engineered for residential users who need a versatile, powerful, and easy-to-use chainsaw for firewood cutting, pruning, and storm cleanup.

How does the 445S compare to previous models?

The 445S delivers 20% faster cutting than the previous 445 model, thanks to an optimized X-TORQ® engine and improved design.

What is the engine size and power?

The 445S features a 50.2 cc engine with 3 horsepower.

What bar and chain does it use?

It comes standard with an 18" bar (recommended range: 13"–20") and uses the SP33G X-Cut chain.

What features make it easy to use and maintain?

The 445S includes Smart Start® technology, a quick-release air filter, captured bar nuts, visible felling marks, and a flip-up fuel cap.

What safety features are included?

It features LowVib® anti-vibration, inertia-activated chain brake, and side-mounted chain tensioning.

What is the standard warranty for my 445S Rancher, and can I extend it?

The 445S Rancher comes with a 2-year limited warranty for residential, non-income producing use. You can extend your warranty up to 5 years by purchasing at least 96 fl. oz. of Husqvarna pre-mixed fuel & oil at the same time as your chainsaw and registering your product online.

What is not covered under warranty?

The warranty does not cover normal wear parts (such as air filters, spark plugs, chains, etc.), damage from improper maintenance, misuse, use of non-approved fuels (E15/E85), or commercial/rental use.

What voids the warranty?

Using the chainsaw for commercial, agricultural, or rental purposes, failing to perform required maintenance, or using non-approved fuels will void the warranty.

How do I get warranty service?

Take your product and proof of purchase to an authorized Husqvarna servicing dealer. You are responsible for transportation costs. Registration is recommended but not required for service.

What do I need to keep for warranty claims?

Keep your proof of purchase (receipt) for the entire warranty period, as Husqvarna may require it for verification before performing warranty work.