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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.
Compare
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Engine

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
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Equipment

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
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Dimensions

Weight (excl. cutting equipment)

11 lbs
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Sound and noise

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)
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Vibration

Equivalent vibration level (ahv, eq) rear handle

4.1 m/s²

Equivalent vibration level (ahv, eq) front handle

3.9 m/s²
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Lubricant

Oil tank volume

0.55 US pint

Lubricant type (Engine)

Husqvarna 2 stroke or equiv. at 50:1
20", .325, Smart Start, US/CA, UA, single pack, CFTBx
970 70 23‑18
Emission

Exhaust emissions (CO₂ EU V)

2
718 g/kWh

Reviews

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 sets the 450S Rancher apart from the 445S?

The 450S Rancher shares the same powerhead design as the 445S but delivers more horsepower (3.2 HP) and is part of Husqvarna’s best-selling Rancher series.

What is the cutting performance of the 450S?

The 450S offers improved cutting capacity and efficiency, making it ideal for landowners tackling tough, demanding jobs.

What is the engine size and bar length?

The 450S has a 50.2 cc engine and comes with a 20" bar (recommended range: 13"–20").

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 user-friendly features does it have?

Features include Smart Start®, quick-release air filter, captured bar nuts, visible felling marks, and a flip-up fuel cap.

What safety and comfort features are included?

The 450S includes LowVib®, inertia-activated chain brake, and side-mounted chain tensioning.

What is the standard warranty for my 450S Rancher, and can I extend it?

The 450S Rancher comes with a 2-year limited warranty for residential 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 on my 450S?

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 on my 450S?

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