ID # 52876866

HUSQVARNA 450X Rancher 20"

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Overview

40% Easier Starting

The Husqvarna 450X Rancher® is redefining ease for gas chainsaws. Whether the engine is cold or warm, the simple starting procedure delivers 40% easier starting*. While the pro-grade power of AutoTune™ automatically adjusts the engine settings to ensure maximum performance. The patented crankcase design has been optimized for engine cooling, helping deliver reliable and long-lasting performance. Our patented X-TORQ® engine maximizes power, even at low RPMs, to deliver an all-around powerhouse you can count on season after season.

Specifications
Model
450X Rancher 20"
Category Name
Lawn / Garden
Year
2026
Sale Type
New
Manufacturer
Husqvarna
features

HUSQVARNA 450X Rancher 20 40% Easier Starting

Easy and consistent starting procedure, whether the engine is cold or warm

HUSQVARNA 450X Rancher 20 Automatic Engine Optimization

AutoTune™ automatically adjusts engine settings for maximum performance

HUSQVARNA 450X Rancher 20 30% Faster Cutting

Improved cutting capacity increases efficiency and productivity

HUSQVARNA 450X Rancher 20 Husqvarna patented hybrid crankcase

Newly designed crankcase made of plastic and metal to provide increased robustness, performance and longevity

HUSQVARNA 450X Rancher 20 Powerful and Efficient X-TORQ® Engine

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

HUSQVARNA 450X Rancher 20 Retained bar nut

The retaining function prevents loosing the bar nut.

HUSQVARNA 450X Rancher 20 Ergonomic rear handle

Increased comfort with soft inlay, ergonomic trigger and assymetrical handle.

HUSQVARNA 450X Rancher 20 Quick-Release Air Filter

Easily remove and replace the filter after cleaning

HUSQVARNA 450X Rancher 20 Air Purge

Air purge removes air from carburetor and fuel system for easy starting.

HUSQVARNA 450X Rancher 20 Flip-Up Fuel Cap

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

engine
Engine
20" .325", X-Cut, .050 ga., SN, UA, single pack CFTBx SKU: 970 70 24‑50
Spark Plug
Champion RCJ7Y, Husqvarna HQT-1R, NGK BPMR7A
Idling Speed
2,800 rpm
Power Output
3.4 hp
Torque, Max.
2.7 Nm
Electrode Gap
0.02 in
Oil Pump Type
Automatic
Maximum Power Speed
96,000 rpm
Torque, Max. At Rpm
7,500 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"
Chain Type
SP33G
Sprocket Type
Spur 7
Bar Length (inch)
20 in
Recommended Bar Length, Max
20 in
Recommended Bar Length, Min
13 in
dimensions
Weight (excl. Cutting Equipment)
11.2 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
55 US pint
Lubricant Type (Engine)
Husqvarna 2 stroke or equiv. at 50:1
vibration
Equivalent Vibration Level (ahv, Eq) Rear Handle
4.1 m/s²
Equivalent Vibration Level (ahv, Eq) Front Handle
3.9 m/s²
emission
Exhaust Emissions (CO₂ EU V)
834 g/kWh
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