Premium Quality Replacement Part SPINDLE BLADE MULCHING REBUILD KIT. Compatible with Following JOHN DEERE Models. Only use with 7 pt. Center Hole 7 Point Star. ID: 11/16 – 17.46 mm. OD: 3 5/8 – 92 mm. ID: 11/16 – 17.4 mm. OD: 5 1/8 – 130.17 mm. Height: 1 3/4 – 44.45 mm.