Premium Quality Replacement PartWe strongly suggest comparing the posted picture to your faulty unit!SPINDLE ASSEMBLY w/ PULLEY ANDMOWER DECK SPINDLE REINFORCEMENT RING For MTD / CUB CADET / TROY BILT / Models:17ARCBDT897 ZT-S46 KH 2014-201917ARFACT066 Mustang Z46 2021Part Number:918-05078A618-05078918-05078A918-0507A 618-05078ADimensions & Measurements:Spindle AssemblyOuter diameter: 184 mm | 7.24″Height: 164 mm | 6.4″Deck Ring:Outer diameter: 168 mm | 6.61″Mounting Hole Distance: 127 mm | 5.0″Height: 5 mm | 0.19″Order Includes:3x Spindle Assembly / w Pulley and Bolts3x Deck Spindle Reinforcement Ring w/ BoltsNOTE:Mounting holes do not have thread.Power toolis needed to install the bolts.It is designed to withstand the vibration.**