(3 Pack) Spindle Blade Nut for Cub Cadet Zero Turn Mower RZT 50 - RZT 54 - RZT42 3 Pack- Aftermarket Spindle Blade Jackshaft Nuts Compatible with Cub Cadet, MTD, White, Toro / Wheelhorse or Troy Bilt Garden Tractors Model Numbers- Cub Cadet Zero-Turn Models: RZT50, RZT54, & RZT42 MTD: Riders, 600 & 800 Series, & Many Others Troy Bilt: R809K, RZT42, RZT50, T609, T809H, U609H, V809H, X609G, Y609H, Y809P, Z809H, Z809K Dimensions: - Can be used on Blade or Pulley Side. - Flanged Blade Spindle Nut - 5/8" Thread Interchangeable with: 712-0417A, 712-0417, 7120417, 912-0417A, 9120417