Komatsu 6120-51-2211 Joint

Alternate Part #6120512211

The Komatsu 6742-01-5123 shaft is a high-quality replacement part designed specifically for Komatsu machinery. With its exceptional durability and reliability, this shaft ensures optimal performance and longevity for your equipment. Crafted with precision and engineered to the highest standards, this Komatsu shaft guarantees a perfect fit and seamless integration into your machine. It is manufactured using advanced techniques and top-grade materials, ensuring its ability to withstand the toughest working conditions. The 6742-01-5123 shaft is an essential component that plays a crucial role in the proper functioning of your Komatsu equipment. It effectively transfers power and torque, allowing for smooth operation and efficient performance. Its robust construction ensures minimal wear and tear, reducing the need for frequent replacements and maintenance. Designed by industry experts, this Komatsu shaft undergoes rigorous quality control measures to meet or exceed OEM specifications. It is thoroughly tested to ensure optimal performance and reliability, giving you peace of mind knowing that your equipment is in safe hands. Whether you are in the construction, mining, or any other heavy-duty industry, the Komatsu 6742-01-5123 shaft is an ideal choice for keeping your machinery running at its best. Trust in its exceptional quality and performance to maximize the productivity and efficiency of your Komatsu equipment.

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Komatsu 6120-51-2211 Pin Specifications & Fitment

What it is: Heavy-equipment pin designed for tight-tolerance pivot joints where wear control and alignment matter.

• Part number: 6120-51-2211
• SKU: KM-6120-51-2211
• Typical use: Boom/arm/bucket linkages, work equipment pivots, and high-wear joints.

Key measurements to confirm

To ensure correct fit, match the following measurements to your machineTMs worn component or OEM spec:

• Inside Diameter (ID): ___
• Outside Diameter (OD): ___
• Overall Length: ___

Quality notes

• Designed for consistent clearance and long service life when installed with proper lubrication.
• Replace pins and bushings as a set when wear is uneven to prevent premature failure.

Installation tip

Measure the bore, pin, and bushing after press-fit. Use proper tooling and lubrication, and re-check end-play after assembly.

Need help confirming dimensions? Send your machine model and the measurements above and weTMll verify fitment.

Komatsu maintenance notes (quick guide)

• Early-life greasing: For excavators, Komatsu guidance calls for greasing work equipment pins every 10 hours for the first 50 hours, and greasing again after water work.
• Clearance control: Komatsu linkage manuals commonly specify pinbushing clearance targets and a typical service limit around 1.0 mm for many joints, often managed with shims.
• Tracked machines: For undercarriage track joints, pin/bushing turning is condition- and wear-window dependent; abrasive sites can accelerate wear substantially.