17M7121390 , 17M-71-21390 PIN KOMATSU – OEM Quality by 3GEN Export

Introduction to 17M-71-21390 PIN KOMATSU

The 17M7121390 PIN KOMATSU is a vital heavy machinery spare part designed to deliver exceptional reliability, durability, and precision in Komatsu equipment. Known for their high-performance engineering, Komatsu pins are manufactured to withstand extreme working environments where heavy earthmoving, mining, and construction operations demand maximum efficiency.

As an OEM-quality component supplied by 3GEN Export, the 17M-71-21390 PIN KOMATSU guarantees seamless compatibility with specific Komatsu bulldozers and other heavy-duty machines. With a robust design and precise machining, this pin plays an essential role in ensuring the stability, safety, and functionality of your equipment.

By choosing 3GEN Export as your supplier, you benefit from global delivery in just 5 working days, OEM assurance, and professional after-sales support for your Komatsu spare parts requirements.

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The Function of the 17M-71-21390 PIN KOMATSU

What Does a Pin Do in Komatsu Machinery?

Pins are critical components in Komatsu machines, serving as pivot and fastening points that allow moving parts to operate smoothly while handling immense loads. The 17M-71-21390 PIN KOMATSU specifically functions as a structural connector, ensuring that arms, joints, and linkages move freely without compromising the equipment’s stability.

In heavy bulldozers and construction equipment, these pins endure massive amounts of force during excavation, grading, ripping, and pushing operations. The 17M-71-21390 PIN KOMATSU is built from high-strength alloy steel to resist wear, corrosion, and mechanical stress, providing long service life and reduced downtime.

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Technical Specifications of 17M-71-21390 PIN KOMATSU

The 17M-71-21390 PIN KOMATSU is engineered to meet stringent Komatsu OEM standards. While exact measurements vary based on the model application, the general specifications include:

• Part Number: 17M-71-21390

• Material: Forged, heat-treated alloy steel

• Finish: Precision-machined, anti-corrosion coated

• Weight: Approximately 14.50 KG (depending on specific model fitment)

• Design Features: Smooth cylindrical shaft with flanged locking head for secure fitment

• Durability: Wear-resistant surface to reduce friction and extend lifespan

This combination of strength, precision, and durability ensures the pin can handle the toughest workloads in demanding construction and mining conditions.

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Compatible Komatsu Models

The 17M-71-21390 PIN KOMATSU is compatible with several heavy-duty Komatsu bulldozers and related machinery. Common models include:

• Komatsu D155 Series Bulldozers

• Komatsu D275 Series Bulldozers

• Komatsu D355 Series Bulldozers

• Selected large-frame Komatsu crawler tractors and earthmovers

Always verify compatibility with your machine’s manual or consult with 3GEN Export’s technical team to ensure the correct part fitment for your equipment.

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Advantages of Using 17M-71-21390 PIN KOMATSU

1. OEM-Quality Engineering

The pin is manufactured to precise OEM standards, ensuring reliable fitment and maximum performance in Komatsu machinery.

2. Exceptional Durability

Made from hardened alloy steel, this pin resists wear, fatigue, and corrosion, guaranteeing long-term service life under heavy loads.

3. Reduced Downtime

Using the correct pin minimizes the risk of mechanical failures, preventing costly breakdowns and keeping your operations running smoothly.

4. Global Delivery in 5 Days

With 3GEN Export, the 17M-71-21390 PIN KOMATSU can be shipped anywhere in the world within five working days, ensuring minimal project delays.

5. Cost-Effective Solution

As an OEM supplier, 3GEN Export ensures the best balance between price, quality, and performance, delivering long-term value to your business.

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Applications in Heavy Machinery Operations

The 17M-71-21390 PIN KOMATSU is widely used in construction, mining, quarrying, and large-scale earthmoving projects. Its durability makes it suitable for:

• Bulldozer blade assemblies – maintaining stability during heavy soil pushing and grading.

• Ripper attachments – withstanding immense downward forces while breaking hard ground and rock.

• Articulated joints – ensuring secure and smooth pivoting for moving arms and linkages.

• Crawler frames and undercarriages – securing key structural components under intense vibration and stress.

This pin is specifically designed for Komatsu bulldozers operating in extreme terrains, where equipment reliability directly impacts productivity and safety.

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Why Choose 3GEN Export for Komatsu Spare Parts?

At 3GEN Export, we pride ourselves on being a leading global marketplace for heavy machinery spare parts. By choosing us as your OEM supplier for the 17M-71-21390 PIN KOMATSU, you benefit from:

• Worldwide Delivery in 5 Working Days – Fast and reliable shipping, regardless of your location.

• OEM Warranty & Assurance – All parts meet strict manufacturer quality standards.

• Competitive Pricing – Cost-effective sourcing without compromising performance.

• Expert Support – Our team provides technical guidance to help you select the correct parts for your machines.

• Secure Transactions – Advanced payment security measures protect your purchase.

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Installation and Maintenance Tips

Installation

• Ensure the machine is securely shut down before installation.

• Clean the assembly area to prevent dirt or debris from affecting the new pin.

• Apply recommended lubrication to reduce friction during installation.

• Align the pin properly with the housing and secure with locking components.

Maintenance

• Regularly inspect pins for wear or deformation.

• Maintain proper lubrication at pivot points.

• Replace pins proactively when signs of wear are visible to prevent costly equipment damage.

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Conclusion

The 17M-71-21390 PIN KOMATSU is an essential heavy-duty component engineered for Komatsu bulldozers and large construction machinery. With its robust design, OEM-quality assurance, and global delivery in just 5 working days through 3GEN Export, this pin ensures your machines operate at peak performance, minimizing downtime and maximizing productivity.

If you are looking for a reliable, OEM-certified supplier of Komatsu spare parts, 3GEN Export is your trusted partner.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.