Marketplace of Heavy Machinery Spare Parts
Marketplace of Heavy Machinery Spare Parts
20Y-70-32321 BUSHING
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Categories: PIN & Bushing
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- 1 year manufacturer warranty
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Product Description
The 20Y-70-32321 BUSHING KOMATSU is a premium-quality flanged bushing designed for Komatsu hydraulic excavators. Engineered for critical pivot joints, this bushing minimizes wear between pins and housings in key moving assemblies. Built from hardened alloy steel and featuring internal lubrication channels, it guarantees enhanced durability and smoother machine performance under continuous heavy-duty operations.
As a wear-resistant and high-performance component, the 20Y-70-32321 BUSHING KOMATSU is crucial to maintaining the efficiency and reliability of your Komatsu fleet, even in the most abrasive job sites.
Technical Specifications
• Part Number: 20Y-70-32321
• Product Name: Komatsu Excavator Flanged Bushing
• Material: Heat-treated alloy steel
• Inner Features: Spiral lubrication groove
• Design: Cylindrical body with flanged base
• Outer Coating: Corrosion-resistant precision-machined surface
• Function: Pin-to-housing wear protection and load distribution
• Mount Type: Press-fit installation
• Primary Use: Arm, boom, bucket, and swing frame joints
• Supplier: 3GEN Export (OEM-grade part supplier)
• Delivery: Worldwide shipping in 5 working days
Detailed Description
The 20Y-70-32321 BUSHING KOMATSU is a vital wear component used in the articulated joints of Komatsu excavators. These joints bear repetitive stress and high loads, especially in lifting, digging, and swinging operations. This bushing serves as the protective layer between the pin and the housing bore, absorbing frictional forces and ensuring long-lasting machine alignment and functionality.
With a flanged base design, this bushing stays securely fixed in the housing and helps to distribute axial and radial loads evenly. Its flanged lip also prevents slippage or lateral displacement during operation. The internal spiral lubrication groove ensures consistent grease flow around the pin, reducing temperature rise and enhancing the service life of both the bushing and mating components.
Manufactured using advanced metallurgical processes, this bushing is heat-treated to enhance its hardness while maintaining a tough inner core—essential for resisting impact, deformation, and galling. Its dimensional accuracy ensures a snug, vibration-free fit inside Komatsu’s standard housing bore.
Key Features
• Spiral Grease Groove: Facilitates optimal lubrication for low-friction movement.
• OEM-Standard Precision: Engineered to meet Komatsu fitment and tolerance specifications.
• Enhanced Hardness: Heat-treated steel provides superior wear and impact resistance.
• Flanged Security: Ensures rigid axial positioning under high dynamic loads.
• Corrosion Resistance: Surface treatment protects against dirt, sludge, water, and environmental corrosion.
• Reduced Downtime: Lower wear rate means fewer replacements and less machine downtime.
• Versatile Applications: Used across multiple high-wear zones of Komatsu excavators.
Compatible KOMATSU Models
The 20Y-70-32321 BUSHING KOMATSU is compatible with a variety of mid-sized Komatsu excavators. It is used extensively in the swing, arm, and bucket assemblies—where precise movement and wear control are critical.
Verified compatible models include:
• Komatsu PC200-6
• Komatsu PC210-6
• Komatsu PC220-7
• Komatsu PC240LC-7
• Komatsu PC270-8
• Komatsu PC290-8
This bushing fits into multiple pivot locations depending on the machine’s configuration. For accurate compatibility, consult 3GEN Export’s technical team with your machine’s serial number.
Role in Hydraulic Excavator Systems
Bushing components like the 20Y-70-32321 are essential to maintaining stable and efficient operation of Komatsu machines. They act as sacrificial liners that prevent direct metal-on-metal contact between structural members and moving parts, such as booms and arms.
Over time, pins and bores would wear each other down if not separated by a bushing. This component absorbs the wear load, reduces noise, and preserves tight mechanical tolerances. The flanged edge enhances axial positioning, preventing the bushing from being pushed deeper into the bore under stress.
Its spiral groove design allows grease to circulate continuously, even during rotation or tilting movements, keeping the friction low and extending lubrication intervals.
Maintenance and Replacement
Although built to last, the 20Y-70-32321 BUSHING KOMATSU should be checked regularly as part of your preventive maintenance plan. Look for the following signs that may indicate the need for replacement:
• Excessive play in boom or arm pivots
• Grease leakage or dry lubrication points
• Abnormal vibration or noise
• Scoring or deformation of the bushing bore
When replacing this bushing, a hydraulic press or a bushing tool kit is generally recommended for installation. It is advised to inspect the pin and housing for wear or damage before installing a new unit.
Why Choose 3GEN Export?
3GEN Export is a trusted supplier of OEM-standard heavy machinery components. Our clients depend on us for precision spare parts like the 20Y-70-32321 BUSHING KOMATSU to ensure the longevity and peak performance of their equipment.
When you order from 3GEN Export, you get:
• Delivery in 5 working days worldwide
• OEM-standard quality for durability and fit
• Dedicated technical support for part matching and installation queries
• Competitive pricing and bulk order handling
• Reliable supply chain for critical components
Whether you’re a fleet operator, dealer, or maintenance workshop, we supply components that support your uptime and profitability.
Conclusion
If you’re maintaining or rebuilding Komatsu excavator joints, the 20Y-70-32321 BUSHING KOMATSU is the high-durability solution that meets operational demands. Its spiral lubrication groove, hardened steel body, and flanged design make it a reliable part for resisting wear, reducing noise, and improving mechanical efficiency.
Trust 3GEN Export to deliver OEM-standard bushings with short lead times and dedicated customer service.
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.
