The Stihl 1140-648-0400 sprocket cover is a genuine OEM part designed specifically for Stihl chainsaws. Made of durable plastic and steel materials, this gray sprocket cover is compatible with models such as the Stihl MS 391, 311, 291, and 271. Manufactured in Germany, this high-quality sprocket cover ensures reliable performance and protection for your chainsaw, making it a reliable choice for outdoor power equipment enthusiasts.