FitMatch
Husqvarna X-CUT SP33G chain loop 581 64 31-64 (64 drive links, 38 cm bar)

Chainsaw chain

Husqvarna X-CUT SP33G chain loop 581 64 31-64 (64 drive links, 38 cm bar)

581 64 31-64

Fits 6 models

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Genuine

$47.00

Husqvarna Australia · 30 Oct

Compatible

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Genuine: made by Husqvarna. Compatible: another brand.

Lowest price · $47.00

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AUD, before delivery. Each price shows when it was checked.

Husqvarna AustraliaGenuine · checked 30 Oct$47.00Open
Open cheapest seller · $47.00

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How long it lasts

Replace it when the cutting teeth are worn down to 4 mm (5/32 in), Husqvarna says; sharpen them when the chain cuts poorly.

After replacing: No reset needed. Check the chain tension often until a new chain has run in, Husqvarna says.

How to change the 581 64 31-64 chain

Watch the guide or follow the steps.

How to Assemble the Bar and Chain on a Chainsaw | Husqvarna · Husqvarna USA (official)
  1. 1Stop the saw (on a battery saw, take the battery out) and put on protective gloves.
  2. 2Remove the bar nuts and the clutch cover, and slacken the chain tensioning screw.
  3. 3Take off the old chain. Lift the new chain over the drive sprocket and into the bar groove, starting at the top edge of the bar, with the cutter edges facing forward on the top of the bar.
  4. 4Refit the clutch cover with the chain adjuster pin in the hole in the bar, and tighten the bar nuts finger-tight.
  5. 5Turn the tensioning screw clockwise until the chain does not hang below the bar but still turns easily by hand.
  6. 6Hold up the nose of the bar and tighten the bar nuts with the combination wrench. Check the tension often until the new chain has run in.
Every number this part goes by
Retail name:
581 64 31-64
Retail name:
581-64-31-64
Retail name:
581643164
Retail name:
SP33G 64

Sellers list any of these; they are the same part.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

Fits these 6 Husqvarna models

550 XP. With a 1.3 mm 38 cm (15 in) bar: X-CUT SP33G, 64 drive links.

The other 5 models. With a 38 cm (15 in) bar: 64 drive links.

Common questions
What does the 581 64 31-64 fit?
The Husqvarna X-CUT SP33G chain loop 581 64 31-64 (64 drive links, 38 cm bar) fits 6 Husqvarna models, including the 435 e-series, 440 and 445. Every one is listed on this page.
Where can I buy the 581 64 31-64 in Australia?
We track 1 Australian seller for the 581 64 31-64; the lowest listed price when we last checked was A$47.00 at Husqvarna Australia. Prices are re-checked daily and dated on this page.
How do I fit the 581 64 31-64?
6 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?
A blunt or stretched chain cuts slowly, throws dust instead of chips, and makes the saw harder to control.
Is there anything to reset afterwards?
No reset needed. Check the chain tension often until a new chain has run in, Husqvarna says.

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