Komatsu 6127-31-3412 Crank Pin Metal A

Alternate Part #6127313412

The Komatsu 6127-31-3412 crank pin metal a-quality replacement part designed specifically for Komatsu machinery. This metal assembly is a crucial component that ensures the smooth operation and longevity of your equipment. Built with precision and durability in mind, this metal assembly is engineered to meet or exceed the original Komatsu specifications. It is a reliable aftermarket part that offers the same level of performance and reliability as the original Komatsu part. Designed to fit seamlessly into your Komatsu machinery, the 6127-31-3412 metal assembly is easy to install and requires minimal maintenance. It is crafted with top-grade materials that are known for their strength and resistance to wear, ensuring optimal performance even in demanding work environments. With this metal assembly, you can enhance the efficiency and productivity of your Komatsu equipment. It is a cost-effective solution that delivers exceptional performance, allowing you to maximize the lifespan of your machinery without compromising on quality. Whether you are in the construction, mining, or any other heavy-duty industry, the Komatsu 6127-31-3412 metal assembly is a reliable choice for your equipment maintenance needs. Trust in its superior craftsmanship and compatibility with Komatsu machinery to keep your operations running smoothly.

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Komatsu 6127-31-3412 Pin Specifications & Fitment

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

• Part number: 6127-31-3412
• SKU: KM-6127-31-3412
• 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.