HIPA (pack of 2) Sprocket Needle Bearing for STIHL 017 018 021 023 024 025 MS170 MS180 MS210 MS230 MS240 MS250 Chainsaw Fitment models: STIHL 017 018 021 023 024 025 MS170 MS180 MS210 MS230 MS240 MS250 chainsaw Qty: 2pcs sprocket needle bearing