Sprocket Cover with Chain Tensioner for STIHL Chainsaw MS170 MS180 017 018 MS210 MS230 MS250 021 023 025, Chain Guard + Tensioner + Stud and Nut 6 in 1

【Compatible With】 Replaces STIHL 017 018 021 023 025 MS170 MS180 MS210 MS230 chainsaws. 【Package Includes】 Sprocket cover × 1, chain tensioner × 1, nuts × 2, and studs × 2. Parts replacement is quick and easy. 【Effective Protection】 The sprocket cover keeps the sprocket clean and protects the chain wheel from damage, helping the chainsaw run smoothly. 【OEM Number】 # 1123-640-1705. Based on strict OEM standards, the specifications and size are exactly the same as the original. 【Durable Design】 Made of sturdy ABS plastic, built to last. If you encounter any problems, please contact us; we promise a 100% satisfactory solution.