125-20008661 Echo Carburetor 

Genuine OEM replacement part

Replaces: 12520008666, 12520008665, 12520008664, 12520008663

Fits Models:

Echo
PB-600 (505401-999999) Backpack Blower
PB-6000 (Type 1) Backpack Blower
PB-6000 (Type 1E) Backpack Blower
PB-601 (501001-506000) Backpack Blower
PB-601 (506001-999999) Backpack Blower
PB-602 (03001001-03999999) Backpack Blower
PB-602 (04001001-04999999) Backpack Blower
PB-603 (03001001-03999999) Backpack Blower
PB-603 (04001001-04999999) Backpack Blower
PB-60HT (001001-568895) Backpack Blower