Komatsu 6127-39-3412 Crank Pin Metal A

Alternate Part #6127393412

The Komatsu 6127-39-3412 crank pin metal a-quality aftermarket part designed specifically for Komatsu equipment. Crafted with precision and manufactured to meet the highest industry standards, this metal component guarantees exceptional performance and durability. Engineered to seamlessly fit various Komatsu models, the 6127-39-3412 metal a ensures a perfect match and hassle-free installation. It is meticulously designed to withstand the rigorous demands of heavy-duty applications, making it an ideal choice for construction, mining, and other industrial operations. With its superior build quality, this Komatsu aftermarket part offers reliable functionality and extends the lifespan of your machinery. It is carefully crafted using premium materials, ensuring optimal strength and resistance against wear and tear. This results in reduced downtime and maintenance costs, allowing you to maximize productivity and minimize operational disruptions. The 6127-39-3412 metal a is a testament to Komatsu's commitment to delivering exceptional performance and longevity. By choosing this certified premium aftermarket part, you can trust that your Komatsu equipment will continue to operate at its peak efficiency, delivering impressive results on every job.

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Komatsu 6127-39-3412 Pin Specifications & Fitment

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

• Part number: 6127-39-3412
• SKU: KM-6127-39-3412
• 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.