ATVATP Muffler with Bolts Gasket Kits for STIHL 021 023 025 MS210 MS230 MS250 Chainsaw Replacement Manufactures Part Number :1123 140 0608 For STIHL 021 023 025 MS210 MS230 MS250 Chainsaw Package Include: 1X muffler, 1X gasket, 2X bolts