Proven Part Tire and Wheel for Exmark and For Toro 105-3471 4.10/3.5-4. This tubeless tire 

Inflatable Tire and Wheel 
White Rim
Hub Width: 4.2In
Bearing Size: 3/4In
Size: 4.10/3.5-4
Grease Zerk

Fits Exmark: Quest
Fits Toro: TimeCutter Z 14-38Z, TimeCutter Z 16-42Z, TimeCutter Z 17-42Z, TimeCutter Z 18-44Z, TimeCutter Z380, TimeCutter Z420, TimeCutter Z4200, TimeCutter Z4202, TimeCutter Z4220, TimeCutter Z480, TimeCutter Z530, TimeCutter ZD380, TimeCutter ZD420, TimeCutter ZD420T, TimeCutter ZD530, TimeCutter ZX 17-44ZX, TimeCutter ZX 18-44ZX, TimeCutter ZX 18-52ZX, TimeCutter ZX 19-52ZX, TimeCutter ZX440, TimeCutter ZX480, TimeCutter ZX525