20Y-70-42320 BUSHING

The 20Y-70-42320 BUSHING KOMATSU is a precision-engineered flanged bushing used in Komatsu hydraulic excavators, specifically designed for load-bearing pivot points. This bushing is manufactured with internal spiral grooves to enhance grease distribution, reduce wear, and ensure smooth, reliable operation under intense pressure.

Built to withstand extreme working environments such as construction, mining, and earthmoving, the 20Y-70-42320 BUSHING KOMATSU plays a critical role in preserving the integrity and longevity of your equipment’s mechanical joints.

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Technical Specifications

• Part Number: 20Y-70-42320

• Product Name: Flanged Bushing

• Material: Heat-treated alloy steel

• Surface Treatment: Machined with anti-corrosion coating

• Internal Structure: Spiral groove lubrication channels

• Design: Cylindrical bushing with flanged base

• Installation: Press-fit application

• Function: Reduces friction between pins and housing

• Application Zones: Boom, arm, swing frames, and bucket link joints

• Delivery Time: Ships worldwide in 5 working days

• Supplier: 3GEN Export – OEM-standard provider

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Detailed Description

The 20Y-70-42320 BUSHING KOMATSU is designed to serve as a high-performance interface between pins and bores in your Komatsu machinery. As excavators work in aggressive digging, swinging, and lifting operations, pivot points are constantly under pressure. Without a properly fitted and lubricated bushing, metal-on-metal contact would cause premature failure.

This flanged bushing is built from alloy steel and undergoes a specialized heat-treatment process to provide exceptional surface hardness and internal strength. Its flange secures the component in place, preventing axial displacement even during lateral stress or shock loads.

The spiral lubrication groove on the interior is a vital enhancement. It channels grease uniformly throughout the bearing surface, reducing heat buildup and friction, and prolonging the part’s lifespan. This also contributes to:

• Smooth motion with reduced vibration

• Lower maintenance intervals

• Pin preservation and improved alignment

• Enhanced joint performance in dynamic applications

Ideal for arm, boom, or swing joints, the 20Y-70-42320 BUSHING KOMATSU fits into tight tolerances and ensures stable machine movement—minimizing equipment play and improving precision during operation.

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Key Features

• Precision Fit: Designed for Komatsu excavators to ensure tight installation and secure seating.

• Spiral Lubrication System: Maintains uniform grease coverage for cooler, smoother performance.

• Hardened Alloy Steel: Built to resist deformation, cracking, and fatigue under extreme load.

• Flanged Stability: Prevents movement in axial directions and ensures perfect bore alignment.

• Corrosion-Resistant Surface: Protects against moisture, mud, dust, and high-temperature degradation.

• Low Maintenance: Reduces service frequency and replacement costs.

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Compatible KOMATSU Models

The 20Y-70-42320 BUSHING KOMATSU is utilized in multiple Komatsu hydraulic excavator models, particularly those within the mid-size operational class. This bushing is commonly installed in joints that see frequent motion and load stress, such as boom and bucket linkages.

Verified compatible models include:

• Komatsu PC200-7

• Komatsu PC210-8

• Komatsu PC220-7

• Komatsu PC240LC-8

• Komatsu PC270-7

• Komatsu PC290-8

3GEN Export’s technical team can assist with compatibility checks based on serial numbers or machine designations to ensure proper fit before shipping.

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Function in Komatsu Excavator Systems

Bushings serve as the sacrificial wear component in pivoting joints, absorbing friction and rotational stress. In applications like the 20Y-70-42320, the bushing protects both the housing and the pin from wear. When paired with proper lubrication, its spiral groove system keeps the part consistently greased, extending the service life even under prolonged and demanding operation.

By preventing direct metal contact, the bushing ensures reduced wear on structural components and minimizes unexpected failures or mechanical backlash—leading to increased productivity and safer machine control.

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Maintenance and Replacement Advice

Even durable components like the 20Y-70-42320 BUSHING KOMATSU require routine inspection. Watch for signs of:

• Excessive free play in joints

• Loud movement sounds or rattling

• Grease leakage or dry joints

• Surface scoring on pins or bushing

Prompt replacement prevents more costly damage to surrounding parts. Due to its press-fit design, installation can be completed quickly by technicians with standard hydraulic tools.

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Why Choose 3GEN Export?

3GEN Export is your dedicated partner in supplying high-quality, OEM-standard replacement parts like the 20Y-70-42320 BUSHING KOMATSU. We focus on minimizing your downtime and maximizing your machine reliability.

With 3GEN Export, you get:

• Fast delivery anywhere in the world (within 5 working days)

• Guaranteed compatibility and OEM-standard quality

• Access to technical support for installation and fitment questions

• Flexible bulk ordering and efficient logistics

• Trusted by contractors, dealers, and fleet operators worldwide

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Conclusion

The 20Y-70-42320 BUSHING KOMATSU is more than just a wear component—it’s an essential part of keeping your Komatsu excavator running efficiently and reliably. Its robust design, precision fit, and internal lubrication channel system make it an excellent choice for replacement or preventive maintenance.

When you source from 3GEN Export, you get a dependable part, on-time delivery, and expert support—all contributing to a longer-lasting, high-performance machine.

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.