Cylinder displacement
Output shaft power1
Included
- Bar length (inch)18 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.
545
Features
Powerful and Efficient X-TORQ® Engine
X-Torq® engine cuts emissions and fuel consumption
Flip-Up Fuel Cap
Flip-up fuel tank caps are easy to open and secure.
AutoTune
Automatic engine setting with AutoTune
Air Injection™ Technology
Centrifugal air cleaning system expels larger dust and debris particles before they reach the air filter to help improve engine life
LowVib® Technology
Effective LowVib® dampeners absorb vibration, sparing the user’s arms and hands.
Easy to start
Combined start/stop switch and fuel pump make the saw very easy to start.
Adjustable Oil Pump
Customize and control oil flow to meet any need
Side-Mounted Chain Tensioner
Easier access to chain tensioning device
Magnesium crankcase
Magnesium crankcase designed for professional use
Snap-Lock Cylinder Cover
Saves time when changing spark plugs and cleaning
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
Smart Start® Technology
Specially-designed engine and starter for easy and fast starting with minimum effort
Slimmed-down design
Easy and convenient to handle in any situation.
Felling marks
Felling marks for correct felling direction
Fuel Indicator
Transparent fuel indicator makes it easy to check fuel level
Quick Start with Air Purge
Air purge removes air from carburetor and fuel system for easy starting
Retained bar nuts
The retaining function prevents loosing the bar nuts.
Specifications
18" - .325 - .058 Auto Tune SKU: 966 64 86‑08 | |
|---|---|
| Engine | 18" - .325 - .058 Auto Tune SKU: 966 64 86‑08 |
| Cylinder displacement | 50.1 cm³ |
Output shaft power1 | 3.35 hp |
| Torque, max. | 2.69 Nm |
| Torque, max. at rpm | 6,600 rpm |
| Clutch engagement speed (±120) | 4,200 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 capacity, max | 12 ml/min |
| Oil pump capacity, min | 5 ml/min |
| Oil pump type | Automatic |
| Spark Plug | NGK CMR6H |
| Equipment | |
| Recommended bar length, min | 13 in |
| Pitch | .325" |
| Recommended bar length, max | 20 in |
| Bar length | 45 cm |
| Bar length (inch) | 18 in |
| Sprocket type | Rim 7 |
| Dimensions | |
| Weight (excl. cutting equipment) | 10.8 lbs |
| Sound and noise | |
| Sound pressure level at operators ear | 106 dB(A) |
| Sound power level, guaranteed (LWA) | 116 dB(A) |
| Sound power level, measured | 114 dB(A) |
| Vibration | |
| Equivalent vibration level (ahv, eq) rear handle | 3.7 m/s² |
| Equivalent vibration level (ahv, eq) front handle | 3.8 m/s² |
| Lubricant | |
| Oil tank volume | 0.57 US pint |
| Lubricant type (Engine) | Husqvarna 2 stroke or equiv. at 50:1 |
| Emission | |
Exhaust emissions (CO₂ EU V)2 | 824 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.
