【Compatible with】 for Stihl FS 38, FS 40, FS 45, FS 55, FS 56, FS 70, HL 45, HT 56 and other series of brush cutters. 【Improved】 【Improved Handling】 The high-quality sprocket makes handling easier and helps improve the handling of the brush cutter's pivoting head, giving you better control and increasing efficiency. Gardening. 【Package Includes】Clutch × 1, Clutch Drum × 1 1. 【Perfect Fit】Designed and manufactured to meet your needs. According to strict OEM standards, the clutch drum fits perfectly with the original parts. The exchange is quick and easy. 【Part Number】Clutch – 4140 160 2005 and 4140 160 2001. Clutch Drum – 4144 160 2904. The sprocket has been replaced. Rigorously tested to meet industry standards.