Komatsu D85 Bulldozer Undercarriage Parts Track Link Chain Shoe
The Komatsu D85 bulldozer track link (also called track chain link or shoe link segment) is a crucial part of the undercarriage system, connecting each shoe plate to form a complete track chain assembly. Each link is precision-forged and heat-treated to endure the tremendous loads and harsh ground conditions typical of heavy earthmoving and mining operations. This component ensures reliable traction, optimal load transfer, and long-lasting performance in demanding environments.
| Material | 35MnB |
|---|---|
| Surface Hardness | HRC52-58 |
| Colors | Black or yellow 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.
The track link is the backbone of the bulldozer’s undercarriage. It connects the track shoes and transmits power from the sprocket to the ground, allowing smooth and powerful movement. In the Komatsu D85, each link must sustain the constant load of the entire machine while withstanding impact, vibration, and abrasive materials such as rocks or gravel. A well-engineered track link ensures that the bulldozer maintains high traction and stability across all terrains, reducing slippage and improving working efficiency.
In large dozers like the D85, proper link design and hardness balance are essential — too soft, and wear accelerates; too hard, and the link may crack under shock. Our D85 track link offers optimized hardness distribution through advanced heat treatment, ensuring both strength and flexibility.
Material and Heat Treatment Process
Each Komatsu D85 track link is manufactured from high-grade alloy steel such as 35MnB, chosen for its excellent wear resistance and toughness. The manufacturing process includes:
- Forging: The raw steel billets are hot-forged into link blanks to refine grain structure and improve internal density.
- Quenching and Tempering: Each link undergoes multi-stage heat treatment, achieving surface hardness around HRC 52–58 while maintaining a tough core.
- Induction Hardening: The bushing and pin contact areas are precisely hardened to minimize deformation and wear.
- Machining and Drilling: CNC machining ensures tight tolerance in pin holes and perfect alignment for smooth chain assembly.
This combination of metallurgical quality and controlled processing guarantees exceptional fatigue resistance and long working hours under continuous stress.
Manufacturing Process Overview
The following is the process of creating our track link:
1. Track Link Forging & Machining
As can be seen from the finished batch of chain links, each chain link is processed through a standardized production line, and the dimensional accuracy error is controlled within 0.05mm, ensuring smooth chain transmission after assembly and avoiding track jamming due to pitch deviation.
2.Chain Pins
As a key connecting component of the chain, the chain pin is made of the same 35MnB material as the chain link and processed through the same heat treatment process. Its hardness and strength fully match the chain body, avoiding breakage risks caused by uneven component strength and ensuring the stability of the entire chain transmission system.
3. Fine Painting Process
Finished chains undergo a three-step rust-proofing process: degreasing and rust removal, phosphating, and fine painting. The images clearly show the smooth, even paint film on the chain surface. This process effectively shields the chain from rain and sediment, significantly reducing the rate of chain corrosion and extending maintenance intervals, even in humid and dusty mining and construction environments.
4. Standard Packaging
The finished chains are packaged in waterproof film-coated woven bags + wooden pallets. As shown in the shipment image, the packaging is neat and standardized, which can effectively resist extrusion, collision and moisture invasion during transportation, ensuring the chains are delivered to customers in good condition without worrying about transportation damage.
Compatibility and OEM References
This track link is fully compatible with Komatsu D85 bulldozers and equivalent models that utilize similar undercarriage geometry. It can be used as a direct OEM replacement or integrated into a complete undercarriage rebuild, ensuring precise fitment and reliable performance.
For Komatsu D85 series, we offer the following OEM-compatible components:
- Single Track Link – 14X-32-11120
- Single Track Link – 14X-32-11130
For Komatsu D85ESS-2 configurations:
- Track Chain Assy (42 Links, Lubricated Type) – 14U-32-00010
- Single Track Chain (42 Links, Oil Lubricated) – 14U-32-07120
- Track Chain with Shoe Assy (600mm, 12 Shoes) – 14U-32-07140
All components are manufactured to meet OEM dimensional standards, ensuring seamless interchangeability and consistent performance across different operating conditions.
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOMATSU | D20 | D21 | D31 | D37 | D39 | D41 | D50 | D53 |
| D55 | D57 | D60 | D61 | D65 | D68 | D75 | D80 | |
| D85 | D85A-12 | D87 | D90 | D95 | D135 | D155 | D155A-1 | |
| D155A-2 | D155A-3 | D155A-5 | D155AX-6 | D155AX-7 | D275 | D275A-2 | D275AX-5 | |
| D275AX-5EO | D355 | D355A-3 | D375A-2 | D375A-3 | D375A-5 | D375A-6 | D375A-8 | |
| D475A-2 | D475A-3 | D475A-5 | D475A-8 | D475A-8EO | D575A | D575A-2 | D575A-3 | |
| D65EX-12 | D65PX-12 | D61EX-15 | D61PX-15 | D61EX-24 | D61PX-24 | D37EX-21 | D37PX-21 | |
| D39EX-21 | D39PX-21 | D39EX-24 | D39PX-24 | D51EX-22 | D51PX-22 | D51EX-24 | D51PX-24 | |
| D85EX-15E0 | D85PX-15E0 | D85EX-18 | D85PX-18 | D155AX-8 | D155AXi-8 | D375A-8EO | D475A-8EO | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Quality Inspection and Testing
Each D85 track link undergoes rigorous mechanical and metallurgical testing:
- Hardness Test: Ensures proper HRC range and uniform depth of hardened layer.
- Ultrasonic and Magnetic Particle Inspection: Detects any internal cracks or forging defects.
- Dimensional Accuracy Test: Guarantees proper fit within ±0.05 mm tolerance.
- Assembly Simulation Test: Verifies perfect pin and bushing alignment for smooth chain operation.
These strict standards ensure every piece delivers the durability and reliability that professional operators expect from Komatsu-equivalent parts.
Maintenance and Replacement Tips
- Always check pin hole wear and link pitch elongation during routine maintenance.
- Replace worn segments before chain elongation exceeds 0.6%, to avoid accelerated sprocket wear.
- Keep proper track tension — neither too tight nor
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.
