ITEM NAME:Chainsaw Parts Sprocket Drum Worm Gear Kit for STIHL MS230 023 MS250 025 021 Description: Stihl Chainsaw Parts Sprocket Drum Worm Gear Kit Fits for: STIHL MS230 023 MS250 025 021 MS210 REPLACE OEM Number: 1123 640 2074, 1123 160 2050, 0000 958 1022, 9460 624 0801, 9512 933 2260, 1123 640 7102, 1123 647 2400, 1123 664 0500, 0000 955 0801 Material: Metal Size: Approx. 7x7x3cm / 2.76x2.76x1.18inch Specification: Color: as pictures shown Package Includes: 1 Piece Chain sprocket 1 Piece Clutch 1 Piece Washer 1 Piece E-clip 1 Piece Clutch Needle Bearing 1 Piece Worm and Spring 1 Piece Bumper Spike 2 Pieces S Hexagon nuts M8 Note: Pls check the pictures for more details, thank you SKU: DMO0002441560021792.Fits for: STIHL MS230 023 MS250 025 021 MS210. Stihl Chainsaw Parts Sprocket Drum Worm Gear Kit. 1 Piece Worm and Spring. 1 Piece Chain sprocket. 2 Pieces S Hexagon nuts M8. 1 Piece Bumper Spike. 1 Piece Clutch Needle Bearing.