0420112 BUSHING

The 0420112 BUSHING HITACHI is a high-precision, wear-resistant component built to withstand the demanding operational conditions of HITACHI heavy machinery. Designed for critical pivot points such as boom, arm, and bucket connections, this bushing is a vital element that ensures smooth, efficient, and reliable articulation of construction equipment under continuous load stress.

Manufactured to OEM-equivalent specifications and available for worldwide delivery in 5 working days, the 0420112 BUSHING HITACHI is distributed exclusively by 3GEN Export—a global leader in heavy equipment component supply.

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Technical Specifications

• Part Name: 0420112 BUSHING HITACHI

• Part Number: 0420112

• Material: Hardened alloy steel

• Surface Treatment: Precision-machined with anti-corrosion finish

• Grease Features: Centralized lubrication hole and internal grease grooves

• Application: Boom-arm joints, bucket links, main pivot joints

• Installation Type: Press-fit into pin housing

• Outer Diameter Tolerance: Engineered for interference fit

• Inner Bore: Polished for minimal friction and extended pin life

• Packaging: Rust-proof packaging for international shipping

• Availability: Ready for global delivery in 5 business days

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Detailed Description

The 0420112 BUSHING HITACHI is not just another sleeve—it’s an integral wear part that guards the core of your machine’s articulation system. This bushing is designed for use in heavy-duty HITACHI excavators and is especially suited for high-impact work such as earthmoving, mining, and demolition.

Forged from high-strength steel, this bushing features excellent load-bearing capacity and resists wear under repetitive stress and vibration. The inner surface is polished and fitted with grease grooves, facilitating optimal lubrication throughout operation. The outer diameter is designed for a tight press-fit, ensuring it stays secure under extreme mechanical forces.

Its central lubrication hole allows for easy maintenance and prevents dry running, one of the leading causes of accelerated wear. Combined with spiral grease channels, the bushing promotes even grease distribution around the entire internal bore.

The bushing’s compact cylindrical shape and material hardness ensure it absorbs shocks and prevents damage to more expensive structural components, like bores and pins. Over time, this leads to lower maintenance costs, fewer unplanned downtimes, and increased equipment efficiency.

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Key Features

• High-Tensile Strength: Built from premium-grade alloy steel for durability

• Superior Wear Resistance: Handles repeated articulation under high load

• Optimized Lubrication System: Central oil hole and internal grooves extend service life

• Corrosion Protection: Surface treated for long-term resistance to water and mud

• Precision Fit: Manufactured to match HITACHI tolerance standards for maximum compatibility

• Global Availability: Delivered anywhere in the world within 5 working days by 3GEN Export

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Compatible HITACHI Models

The 0420112 BUSHING HITACHI is commonly used in a wide range of HITACHI construction machines. It is typically found in the pivot zones of boom arms, linkages, and bucket joints, making it essential for maintaining structural and operational integrity.

Known HITACHI models compatible with part number 0420112 include:

• HITACHI EX120 / EX200 / EX210 / EX220 Series

• HITACHI EX270 / EX300 / EX330 Excavators

• HITACHI ZX200 / ZX210 / ZX240 / ZX250LC / ZX330 Series

• HITACHI UH07 / UH083 / UH123 Series Excavators

• ZAXIS Z-5 and ZAXIS-3 Series Models

This bushing is installed in high-frequency movement joints, where mechanical precision and structural resistance are required. Using the correct part ensures a seamless operational cycle, minimal wear, and secure equipment performance.

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Application in Heavy Equipment

In hydraulic machinery like HITACHI excavators, bushings are sacrificial components—their purpose is to absorb friction and stress that would otherwise damage critical parts. The 0420112 BUSHING HITACHI plays a key role in:

• Maintaining alignment of rotating parts

• Reducing friction between pins and brackets

• Dispersing mechanical loads evenly across joints

• Protecting equipment from vibration-induced damage

• Acting as a wear surface that can be easily and affordably replaced

Whether you’re lifting, swinging, digging, or carrying, this bushing ensures a smooth interface for the joint systems, extending the lifespan of the entire structure.

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Maintenance and Replacement Tips

While designed for longevity, bushings like the 0420112 BUSHING HITACHI are consumables and must be inspected routinely. Here’s when you should consider replacing this part:

• Excessive clearance or “play” in the joint

• Irregular movement or jerking of the boom/bucket

• Audible grinding, squealing, or squeaking sounds

• Excessive grease leakage or contamination

• Visible scoring or uneven wear on the bushing surface

For optimal performance, it’s recommended to replace bushings in pairs (both sides of the joint) and lubricate them properly during installation. This ensures balanced wear and longer service intervals.

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Why Choose 3GEN Export?

At 3GEN Export, we understand how critical uptime is for your business. That’s why we offer:

• OEM-Compatible Quality: Our parts meet or exceed equipment specs

• Rapid Delivery: Receive parts in 5 working days, anywhere on the globe

• Competitive Pricing: Get high-performance parts without excessive markups

• Expert Support: Our team helps you verify fitment before you buy

• Global Logistics Expertise: Reliable packing and transit protection for international clients

We serve clients in construction, mining, forestry, infrastructure, and more—delivering confidence with every shipment.

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Conclusion

The 0420112 BUSHING HITACHI is a dependable, durable, and cost-effective solution for maintaining the structural performance of HITACHI heavy machinery. Engineered for strength, optimized for lubrication, and built for field reliability, this bushing is essential for reducing downtime and protecting high-value equipment components.

With worldwide delivery in 5 business days by 3GEN Export, you get the quality you need—on time, every time. Optimize your machine’s joint systems today by ordering the 0420112 BUSHING HITACHI from 3GEN Export.

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.