Replacement Arm Boom Bucket Pin and Bushing for Excavator
Built to endure the harshest excavation tasks, this excavator bucket pin features robust alloy construction and advanced hardening treatment for outstanding strength and wear resistance. Ideal for bucket, arm, and boom linkages across various machine brands, it delivers tight fitment, reduced vibration, and reliable joint articulation, keeping your equipment productive in rugged environments.
| Material | 40cr,45# etc |
|---|---|
| Hardness | HRC52-58 |
| Size | Standard or Customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
Excavator bucket pins are essential hinge components that connect the bucket to the arm or boom. They play a critical role in enabling lifting, digging, and material handling operations by supporting rotational movement under heavy loads.
- High-Tensile Alloy Steel: Made from premium-grade 40Cr or 45# steel, selected for its excellent fatigue resistance and load-bearing capacity.
- Advanced Heat Treatment: Surface hardening process (HRC 52–58) enhances durability, reducing deformation and wear in high-friction areas.
- Accurate Machining: CNC-finished to ensure strict dimensional tolerances and smooth operation within bushings and bores.
- Corrosion Protection: Anti-rust oil treatment ensures the pin maintains performance even in humid or muddy environments.
- Interchangeable Fit: Designed for compatibility with a wide range of excavators and backhoe loaders, ensuring cost-effective replacements
Production Process Overview
- Pin Design Variants
A sketch overview displays various bucket pin types, including center-grease pins, through-hole pins, and stepped ends — tailored for different excavator joints. - Deep Drilling & Grease Passage Machining
Precision drilling of oil holes and internal channels ensures optimal lubrication distribution and long-term pivot smoothness. - Polishing & Surface Treatment
Post-machining pins are polished and surface-hardened to remove burrs, improve wear resistance, and ensure a clean finish. - Sealing Compatibility
Each pin can be paired with relevant sealing components (O-rings, dust seals) for a tight and debris-resistant installation.
Common Application Areas
Our bucket pin catalog includes:
- Bucket-to-arm connection
- Arm-to-boom pivot joint
- Boom-to-base pin joint
- Loader arms and hydraulic cylinder ends
We support both straight-type and step-type shaft configurations.
Common Sizes Available
We offer a wide range of pin sizes to meet your specific application needs. Below is a sample list of commonly stocked sizes:
| Diameter (mm) | Length (mm) | Type |
|---|---|---|
| 45 | 280 | Bucket Pin |
| 50 | 300 | Arm Pin |
| 55 | 320 | Boom Pin |
| 60 | 330 | Bucket Pin |
| 65 | 350 | Arm Pin |
| 70 | 370 | Boom Pin |
| 80 | 400 | Bucket Pin |
Custom sizes and OEM drawings are welcome.
Compatibility & Use Case Examples
While this bucket pin is not limited to one brand, it is commonly used in models from:
- Komatsu, Hitachi, Caterpillar, Doosan, Hyundai, Kobelco
- Suitable for 6–35 ton class machines (depending on pin size)
- Compatible with OEM and aftermarket bushings and seals
Contact us for sizing consultation or part matching by machine model or OEM code.
Maintenance Tips
- Regularly check for play and pin wear in joints.
- Re-grease through oil holes every 8–12 operating hours.
- Replace pin and bushing sets together to avoid uneven wear.
- Use appropriate seals to prevent dust and water ingress.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
