Caster Wheel Shaft Jam Nut for Spartan Zero Turn Mowers SKU: SG571450

A loose or missing jam nut on your caster wheel shaft causes dangerous steering wobble and premature wheel bearing wear. This genuine Spartan jam nut secures the caster wheel shaft properly, preventing the wheel assembly from working loose during operation.

Why This Nut Matters

• 1/8" thread size matches Spartan specifications exactly
• Steel construction withstands mower vibration and field conditions
• Genuine Spartan part ensures proper fit and function
• Prevents costly wheel bearing damage from loose assemblies

Keep your front wheels tracking straight and your bearings protected with this essential hardware. Note that this part does not fit Spartan Shield or Defender models. If you need help confirming fitment for your specific mower model, S&H Parts is here to help.