Husqvarna 545157901 Grade Muffler Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; 125BX,125BV,HVA125BVX,HVA125BX,HVA125B-LOWES,35874122,HVA125B Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Husqvarna 121617