General description Fits for Stihl MS170, MS180, 017, and 018 chainsaws. This hand guard chain brake handle is a direct replacement for OEM part number 1130 792 9100. Technical specifications OEM Replacement Part Number: 1130 792 9100 Other information Please compare your original products with the pictures carefully. If you are not sure, please contact us. Welcome to contact us before or after your purchase. Our warm and responsible customer service will always be here for you.