1143 140 0653 – STIHL Muffler (Genuine OEM Part) Stihl CHAIN SAW MS291KIT 18 commonly found on professional and

commonly found on professional and residential outdoor power equipment

Heavy-duty HB-section wrapped V-belt

Built for durability and reliable operation

The 05614600 Ariens / Gravely oil seal is a vital OEM sealing component for maintaining lubrication integrity

1143 140 0653 – STIHL Muffler (Genuine OEM Part) Stihl CHAIN SAW MS291KIT 18 commonly found on professional and1143 140 0653 STIHL Muffler (Genuine OEM Part) The STIHL 1143 140 0653 is a genuine OEM muffler designed to reduce exhaust noise and safely direct exhaust gases away from the engine and operator on compatible STIHL chainsaws. This muffler plays a critical role in maintaining proper engine performance, noise control, and emissions compliance. Manufactured to STIHLs original equipment specifications, this muffler is constructed from durable, heat