See part D-9 in the diagram

Diaphragm 577807001

$29.24

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This part works with the following brands:

This part works with the following products:

Part# 577807001 replaces these:

5778070-01, 577807001,

This part works with the following models:

ERP Number: ERP12639719
Manufacturer Part Number: 577807001

Brand	Model Number	Description
Husqvarna	243R	Trimmer - String Trimmer
Husqvarna	243RJ	Brush Cutter - 243 Rj
Husqvarna	325HE3	Hedge Trimmer - 325 He3 (966787601 From 20150100001-Current)
Husqvarna	325HE4	Hedge Trimmer - 325 He4 (966787701 From 20150100001-Current)
Husqvarna	445E	Chainsaw - 445 E (20103600001-20112700000)
Husqvarna	524L	Trimmer - Trimmer
Husqvarna	525DEPSMADSAW	Pole Saw - 525deps Madsaw
Husqvarna	525ECS	Edger - 525 Ecs
Husqvarna	525ES	Trimmer - Trimmer
Husqvarna	525HF3S	Trimmer - Hedge Trimmer
Husqvarna	525L	Brush Cutter - 525 L (2013-03)
Husqvarna	525LK	Brush Cutter - 525 Lk (2013-03)
Husqvarna	525LS	Brush Cutter - 525 Ls (2013-03)
Husqvarna	525LST	Brush Cutter - 525 Lst (2013-03)
Husqvarna	525P4S	Pole Saw - Pole Pruner
Husqvarna	525P5S	Pole Saw - Pole Pruner
Husqvarna	525PT5S	Pole Saw - Pole Pruner
Husqvarna	525RJD	Brush Cutter - 525 Rjd (2013-03)
Husqvarna	525RJX	Brush Cutter - 525 Rjx (2013-03)
Husqvarna	525RK	Brush Cutter - 525 Rk (2013-03)
Husqvarna	525RS	Brush Cutter - 525 Rs (2018-02)
Husqvarna	525RX	Brush Cutter - 525 Rx (2013-03)
Husqvarna	525RXT	Brush Cutter - 525 Rxt (2013-03)
Husqvarna	543AE15	Lawn Mower - Earth Auger
Husqvarna	543RB	Brush Cutter - 543 Rb
Husqvarna	543RBK	Brush Cutter - 543 Rbk (20130500001-20182200000)
Husqvarna	543RBS	Brush Cutter - For China
Husqvarna	543RBX	Brush Cutter - 543 Rbx (20182200001-Current)
Husqvarna	543RS	Brush Cutter - 543 Rs (20141800001-20192200000)
RedMax	BCZ400SW	Brush Cutter - Brushcutter