Parts list: № Number Qty Name Options 1 AT417016 2 Chain Sprocket 25, Teeth, SUB FOR T252552 2 R78019 18 Washer 9 Per Sprocket 3 19H2857 18 Cap Screw 3/4" X 2", 9 Per Sprocket Next page: ST698408 Lubricated Track Chain With 610 mm (24 in.) Shoes 42 Link, Standard ST698411 Lubricated Track Chain with 610 mm (24 in.) Shoes 39 Link Maximum Life ST698404 Lubricated Track Chain with 460 mm (18 in.) Shoes 42 Link, Standard PICT-0132.1 0132 Drive Sprockets, Chains and Shoes ST698797 Forged Sprocket ST698405 Lubricated Track Chain with 460 mm (18 in.) Shoes 39 Link Maximum Life ST848477 Lubricated Track Chain with 610 mm (24 in.) Shoes 42 Link Extended Life ST848472 Lubricated Track Chain with 450 mm (18 in.) Shoes 42 Link Extended Life