Compatible Models: 545 Mark II, 550XP Mark II, 562XP, 572XP. For sale is one (1) Genuine Husqvarna Vent Purge Line, Part Number 525 34 43-03. Type: Fuel Hose / Vent Purge Line. If your saw is stalling or having trouble starting, a cracked or leaking vent line is often the culprit.
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