531003347 Husqvarna Breather. Fits Husqvarna 125BT (2004-05) TH026D-AC57, Handheld Leaf Blower 125BT (2004-10) TJ027D-AC55, Handheld Leaf Blower 145BT (2005-08) Backpack Blower 155B (2011-10) Backpack Blower 165BT (2005-08)(US) Backpack Blower H140B (1995-07) Backpack Blower H140B (1996-03) Backpack Blower H140B (1997-10) Backpack Blower