This is a quality non genuine replacement spring and fits the following models, 017, 018, 021, 023, 025, MS170, MS171, MS180, MS181, MS210, MS230, MS250, E140, E160, E180, MSE140, MSE160 & MSE180.
Similar to Stihl Part No: 1123 162 7800
MS Part No: 75141
