20Y-27-11561 Komatsu Bolt-Sprocket

The 20Y-27-11561 bolt-sprocket is a hardware component used to secure the sprocket to the final drive or undercarriage assembly on tracked machines. It ensures the sprocket remains firmly attached, allowing the track system to transfer power and support movement efficiently.

Here’s a general guide for proper installation:

1. Turn off the machine and ensure it is safely supported.
2. Remove any guards or covers obstructing access to the sprocket.
3. Extract the old bolt-sprocket hardware if replacing existing parts.
4. Position the sprocket in alignment with the mounting holes.
5. Insert the new 20Y-27-11561 bolts and tighten them to the torque specifications indicated in your service manual.
6. Reinstall any components that were removed and confirm secure fit before operating.

Always refer to your equipment’s service documentation for exact torque values and safety procedures.

This bolt-sprocket is commonly used in tracked excavators and related undercarriage systems where part number 20Y-27-11561 is specified. These fasteners play a critical role in securing sprocket assemblies that drive the tracks on heavy machines. Always verify compatibility with your machine’s part number or service manual before ordering. Please reach out to Propel Parts for help verifying fitment.

Yes, the 20Y-27-11561 bolt-sprocket is designed to meet OEM specifications for strength and durability in heavy equipment applications. When replacing hardware, choose genuine or high-quality aftermarket parts that meet or exceed OEM expectations to ensure secure fastening and long-lasting performance under load.

Inspect bolt-sprocket hardware regularly during routine maintenance or anytime the undercarriage is serviced. Replace any bolts that show signs of corrosion, wear, rounding, or thread damage. Regular inspection helps prevent loosening or failure of the sprocket attachment, which could affect machine performance.

Typical indicators include:

1. Loose or missing bolts
2. Visible wear or rounding on bolt heads
3. Corrosion or compromised threads
4. Sprocket movement or vibration during operation

Prompt replacement helps maintain proper track engagement and prevents further damage to the final drive or undercarriage components.

High-quality bolts ensure the sprocket is firmly secured to the drive hub, maintaining proper alignment and power transfer across the undercarriage system. Using genuine or high-quality aftermarket parts that meet or exceed OEM expectations reduces the risk of hardware failure, ensures safe operation, and supports long-term durability of your equipment.