Komatsu 6127-38-3421 Crank Pin Metal A

Alternate Part #6127383421

The Komatsu 6127-38-3421 crank pin metal a-quality aftermarket part designed specifically for Komatsu machinery. Made with precision and durability in mind, this metal component ensures optimal performance and longevity for your Komatsu equipment. Crafted to meet the highest industry standards, this metal a part guarantees a seamless fit and reliable functionality. It is designed to seamlessly integrate with your Komatsu machinery, delivering exceptional performance and reliability. Whether you are in construction, mining, or any other industry that relies on Komatsu equipment, this metal a part is an essential addition to your maintenance and repair toolkit. With its robust construction, this aftermarket part offers exceptional resistance to wear and tear, ensuring a longer lifespan for your Komatsu machinery. It is engineered to withstand the harshest operating conditions, making it suitable for heavy-duty applications. This metal a component is built to endure the demanding challenges of your work environment, providing you with peace of mind and reducing downtime. As a trusted provider of Komatsu parts, we understand the importance of delivering reliable and high-performing products to our customers. The Komatsu 6127-38-3421 metal a is no exception. It undergoes rigorous quality control processes to ensure its adherence to Komatsu's strict standards. Rest assured, this aftermarket part offers the same level of quality and performance as its original counterpart. Investing in this metal a part means investing in the longevity and efficiency of your Komatsu machinery. By choosing this aftermarket part, you not only save money but also benefit from a reliable and durable solution that keeps your equipment running smoothly.

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Komatsu 6127-38-3421 Pin Specifications & Fitment

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

• Part number: 6127-38-3421
• SKU: KM-6127-38-3421
• 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.