Premium Quality Replacement Part. Compatible with Toro Models. Sfs Side Discharge Mower 2000. Sfs Side Discharge Mower990001-99. Sfs Side Discharge Mower. Sfs Side Discharge Mower 2001. Sfs Side Discharge Mower 2002. Sfs Side Discharge Mower 2003. 3x Spindle Assembly: 1003976. Length: 167 mm – 6.57 in. Pulley Width: 19 mm – 0.74 in. Pulley Outer Diameter: 207.9 mm – 8.18 in.