16-Inch Chainsaw Bar and Chain Combo Replacement for Stihl Ms 250, Stihl Ms 230, Stihl 025, Stihl Ms 251, Stihl 017, Stihl 009 - 3/8" Pitch, .050" Gauge, 55 Links, 7 Sprocket Nose Tooth
Amazon.com: 42.5mm Crankshaft Piston Oil Seal Bearing Kit For STIHL MS250 MS230 025 023 MS 250 230 Chainsaw Parts : Patio, Lawn & Garden