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Husqvarna Chain Saw — 45.7cc, 18in. Bar, 0.325in. Chain Pitch, Model# 445-18
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Husqvarna Chain Saw — 45.7cc, 18in. Bar, 0.325in. Chain Pitch, Model# 445-18

Item# 31910
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Only $319.99

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Manufacturer's Warranty: 24 months parts / 24 months labor

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Product Summary


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This powerful Husqvarna Chain Saw is perfect for those that value professional qualities in a saw. Powerful 2.8 cubic inch, 45.7cc, 2.8 HP X-Torq® engine for lower fuel consumption and reduced emissions levels. Auto return stop switch and visible fuel level makes the saw easier to handle. It is also equipped with Smart Start® and a fuel pump for easy starts every time. Not for sale in California.

What's Included

  •  (1) Chain saw

Features + Benefits

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  •  Powerful 2.8 cubic inch, 45.7cc, 2.8 HP X-Torq® engine for lower fuel consumption and reduced emissions levels
  • Air purge removes air from the carburetor and fuel system for easy starting
  •  Inertia-activated chain brake reduces the likelihood of injury due to kickback
  • Centrifugal air cleaning system removes large pieces of dust and debris before they reach the air filter for reduced air filter cleanings and improved engine life
  • Quick-release air filter for easy cleaning and replacement
  • Distinct felling marks for better felling precision
  • Combined choke/stop control for easier starting and reduced risk of engine flood
  • Side-mounted chain tensioner for easy access
  • Forced three-piece crankshaft for durability in the toughest applications
  • Transparent fuel indicator makes it easy to check fuel level
  • Combined choke/stop control for easier starting and reduced risk of engine flood
  • Not for sale in California

Key Specs

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Item#31910
Ship Weight16.5 lbs
Chain Saw TypeGas
Engine Displacement (cc)45.7
Chain Pitch (in.)0.325
Chain Gauge (in.)0.050
Bar Length (in.)18
HP2.8
Engine Speed (RPM)9,600
Fuel Capacity (oz.)15.2
Gas:Oil Fuel Mix Ratio50:1
Oil Capacity (oz.)0.55
Oil Pump FlowFixed 9-9 ml/min.
Chain BrakeYes
Primer BulbYes
Low Vibration HandleYes
Tool-Less Chain TensioningNo
Noise Level (dB)103.3
Case IncludedNo
Tool Weight (lbs.)10.8

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Product Question + Answer

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Extended Warranty

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Service Protection Plus

Manufacturer Warranty:
24 months parts / 24 months labor

Protect your purchase beyond the manufacturer's warranty
with Service Protection Plus!

DESCRIPTION (Click More Info for details) 1 Year Extension 2 Year Extension
Replacement Plan
Only $34.99
More Info
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Replacement Plan with Accidental Damage
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Husqvarna Chain Saw — 45.7cc, 18in. Bar, 0.325in. Chain Pitch, Model# 445-18 The price is $319.99.
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Hide Similarities
Chain Saw Type Gas Gas Gas Gas Gas
Engine Displacement (cc)
42 51 40.9 45.7 50.2
Chain Pitch (in.) 3/8 3/8 0.325 0.325 0.325
Chain Gauge (in.)
0.050 0.050 0.050 0.050 0.050
Bar Length (in.) 18 18 18 18 18
HP
- - 2.4 2.8 3.2
Engine Speed (RPM) - - 2,900–9,000 9,600 -
Fuel Capacity (oz.)
11.4 12.5 12.48 15.2 15.2
Gas:Oil Fuel Mix Ratio 40:1 - - 50:1 -
Oil Capacity (oz.)
6.8 6.6 8.48 0.55 8.48
Oil Pump Flow Automatic Auto/adjustable Fixed Fixed 9-9 ml/min. -
Chain Brake Yes Inertia Yes Yes -
Primer Bulb Yes Yes No Yes -
Low Vibration Handle Yes Yes Yes Yes -
Tool-Less Chain Tensioning No No Yes No -
Noise Level (dB) 108 - 102 103.3 -
Case Included Yes Yes No No -
Tool Weight (lbs.) 14.8 25 10 10.8 -