Cylinder displacement
Output shaft power1
Chain speed at max power
Product Options
Included
- Nose typeSprocket nose
- SpikesMounted
- Chain typeSP33G
- Bar length (inch)20 in
Shipping & Returns
Husqvarna aims to deliver orders promptly, so changes or cancellations are not accepted once an order is placed.
Husqvarna offers a refund for online purchases if you are not satisfied, minus any shipping or restocking fees.
Warranty
At Husqvarna, we're committed to ensuring your satisfaction. Our warranty covers any defects in material or workmanship under normal use during the warranty period.
450 Rancher
Features
Powerful and Efficient X-TORQ® Engine
X-Torq® engine cuts emissions and fuel consumption
LowVib® Technology
Effective LowVib® dampeners absorb vibration, sparing the user’s arms and hands.
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
Flip-up fuel tank caps are easy to open and secure.
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
X-CUT® Chain
Exceptional sharpness and durability
Specifications
20" .325", X-Cut, 1,3 mm, SN,FA, single pack RTLBx SKU: 970 61 31‑18 | ||
|---|---|---|
| Engine | 20" .325", X-Cut, 1,3 mm, SN,FA, single pack RTLBx SKU: 970 61 31‑18 | 18" .325", X-Cut, 1,3 mm, SN, FA, single pack in POWERBOX SKU: 970 61 31‑28 |
| Chain speed at max power | 56.76 fts | 56.76 fts |
| Cylinder displacement | 50.2 cm³ | 50.2 cm³ |
Output shaft power1 | 3.2 hp | 3.2 hp |
| Torque, max. | 2.6 Nm | 2.6 Nm |
| Torque, max. at rpm | 7,200 rpm | 7,200 rpm |
| Clutch engagement speed (±120) | 4,300 rpm | 4,300 rpm |
| Electrode gap | 0.02 in | 0.02 in |
| Idling speed | 2,700 rpm | 2,700 rpm |
| Ignition module air gap | 0.01 in | 0.01 in |
| Maximum power speed | 9,000 rpm | 9,000 rpm |
| Oil pump type | Fixed flow | Fixed flow |
| Spark Plug | Champion RCJ7Y, NGK BPMR7A | Champion RCJ7Y, NGK BPMR7A |
| Equipment | ||
| Recommended bar length, min | 13 in | 13 in |
| Pitch | .325" | .325" |
| Recommended bar length, max | 20 in | 20 in |
| Chain type | SP33G | SP33G |
| Bar length | 50 cm | 45 cm |
| Bar length (inch) | 20 in | 18 in |
| Sprocket type | Spur 7 | Spur 7 |
| Gauge | .050" | .050" |
| Dimensions | ||
| Weight (excl. cutting equipment) | 11.33 lbs | 11.33 lbs |
| Sound and noise | ||
| Sound pressure level at operators ear | 104 dB(A) | 104 dB(A) |
| Sound power level, guaranteed (LWA) | 115 dB(A) | 115 dB(A) |
| Sound power level, measured | 113 dB(A) | 113 dB(A) |
| Vibration | ||
| Equivalent vibration level (ahv, eq) rear handle | 4.9 m/s² | 4.9 m/s² |
| Equivalent vibration level (ahv, eq) front handle | 3.1 m/s² | 3.1 m/s² |
| Lubricant | ||
| Oil tank volume | 0.55 US pint | 0.55 US pint |
| Lubricant type (Engine) | Husqvarna 2 stroke or equiv. at 50:1 | Husqvarna 2 stroke or equiv. at 50:1 |
| Emission | ||
Exhaust emissions (CO₂ EU V)2 | 742 g/kWh | 742 g/kWh |
Reviews
Services
Owner support
- 1Output shaft power: Net power rating as per ISO 7293, at specified RPM
- 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.
