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121-4318 Toro Hex Head Shoulder Bolt (1U) (Genuine OEM Part)

121-4318 Toro Hex Head Shoulder Bolt (1U) (Genuine OEM Part)

Original price was: $4.68.Current price is: $1.40.

SKU: G553380034 Category:

Description

121-4318 Toro Hex Head Shoulder Bolt (1U) (Genuine OEM Part)

The Toro 121-4318 Hex Head Shoulder Bolt (1U) is a genuine OEM fastener used in the cutter head and grinder head assemblies on select Toro STX-38 stump grinders. This shoulder bolt is engineered to provide precise spacing, secure retention, and controlled pivot or mounting support in high-load, high-vibration grinding applications.

Manufactured to Toro specifications, this bolt ensures proper fitment, strength, and long service life in demanding commercial stump grinding conditions.

Product Details

  • Manufacturer Part Number: 121-4318

  • Brand: Toro

  • Part Type: Hex Head Shoulder Bolt (HSH)

  • Fastener Type: Shoulder Bolt

  • Application: Cutter Head / Grinder Head Assembly

  • OEM Status: Genuine Toro replacement part

Function

  • Secures and aligns components within the grinder head assembly

  • Provides controlled spacing and pivot support

  • Maintains proper cutter head alignment

  • Designed to withstand high shock loads and vibration

Compatible Toro Equipment (Common Applications)

This shoulder bolt is used on select Toro stump grinders, including:

Toro STX-38 Stump Grinders

  • STX-38

  • STX-38 EFI with Intelli-Sweep

(Used in cutter head and grinder head assemblies across multiple serial ranges)

Due to model and serial-number variations, always confirm compatibility using your machines model and serial number before ordering.

Installation Notes

  • Shoulder bolt only washers, nuts, or spacers sold separately unless noted

  • Torque to manufacturer specifications

  • Inspect mating components for wear or elongation

  • Replace bolt if threads are damaged or shoulder shows wear

Suggested Maintenance

  • Inspect fasteners during cutter head service

  • Replace if looseness, wear, or damage is detected

  • Always use genuine Toro hardware for safety-critical applications

The Toro 121-4318 Hex Head Shoulder Bolt (1U) is a critical grinder head fastener that ensures safe operation, proper alignment, and long-term durability on Toro STX-38 stump grinders.

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