Kit includes 3 mower deck spindles with mounting hardware. Spindle Height: 6-½", Pulley Diameter: 5", Spindle Shaft Thread: 5/8" -18 UNF These spindles already have the threads cut in the housings - no need to worry about thread cutting bolts and stripped spindle housings. This is the highest quality aftermarket spindle on the market. Replaces Part Number: 618-06980, 918-06980 OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. Set of 3 New Aftermarket Mower Deck Spindles Fits Craftsman Mower Models: 247.204100 (17ARCBDQ099) - Fits Craftsman ZS6700 Zero-Turn Mower (2016), 247.204430 (14A7A3ZQ099) - Fits Craftsman G8300 Garden Tractor (2015), 247.270460 (14B7A3ZQ099) - Fits Craftsman G8300 Garden Tractor (2018), 247.270480 (14A7A5ZQ099) - Fits Craftsman G8200 Garden Tractor (2017), 247.270480 (14A7A5ZQ099) - Fits Craftsman G8200 Garden Tractor (2018), Z 550 (CMXGNAM1130051) (17ADFACQ093) - Fits Craftsman 50" Zero-Turn Mower (2019), Z 550 (CMXGNAM1130051) (17ADFACQ093) - Fits Craftsman 50" Zero-Turn Mower (2020). Kit includes 3 mower deck spindles with mounting hardware. Spindle Height: 6-½", Pulley Diameter: 5", Spindle Shaft Thread: 5/8" -18 UNF These spindles already have the threads cut in the housings - no need to worry about thread cutting bolts and stripped spindle housings. This is the highest quality aftermarket spindle on the market. Replaces Part Number: 618-06980, 918-06980