Durable Track Link Assembly for Caterpillar D4D Bulldozers
Premium track link compatible with Caterpillar D4D bulldozers. Engineered with forged steel links, hardened pins, and precision assembly to ensure long-lasting wear resistance and smooth undercarriage performance.
| Material | 35MnB/40Mn2 |
|---|---|
| Surface Hardness | HRC53-58 |
| 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 chain, also called the track link assembly, is the backbone of your D4D bulldozer’s undercarriage. It connects the track shoes and guides track movement under extreme ground pressure. For earthmoving, grading, and slope stabilization, a durable chain ensures traction, alignment, and even power transfer across the entire track system.
With the D4D working in demanding terrain like compacted soil or abrasive gravel, a reliable track chain prevents derailment, absorbs shocks, and supports overall bulldozer stability.
Track Chain Manufacturing Process
Our D4D chains are manufactured using advanced processes to ensure consistent quality:
- Link Forging & Heat Treatment: High-strength alloy steel links (typically 35MnB or 40Mn2) are forged and heat-treated to resist deformation under heavy stress.
- Precision Pin & Bushing Machining: Pins and bushings are hardened to HRC 55–60 and machined for smooth rotation and long wear life.
- Greased Sealing Option: For sealed chains, each bushing is pre-filled with high-performance grease and sealed with rubber rings to prevent dust and moisture ingress.
- Final Surface Coating: Anti-corrosion coating or paint finish protects the chain during shipping and in wet working environments.
- Quality Inspection: All components are inspected for dimensional accuracy, pitch consistency, and hardness.
Compatible Models & OEM Reference Numbers
This chain assembly is designed for:
- Caterpillar D4D Bulldozer
- Compatible with other D4 series variants that share the same pitch and bushing configuration
Common Reference Numbers (for verification purposes):
6S1222, 6S1730, 8E5470, 7K8139
If you're unsure about compatibility, just send us your machine's serial number or undercarriage drawing, and we’ll match the correct part for you.
Key Features & Advantages of Our D4D Chains
- OEM-Compatible Design – Built to fit directly without modification, ensuring quick installation
- Heavy-Duty Durability – Designed to resist wear, impact, and corrosion under tough field conditions
- Dry or Greased Type – Available in both open (dry) and sealed/greased configurations
- Reliable Supply & Fast Delivery – Bulk stock available with short lead times
- OEM/ODM Branding Support – Optional logo engraving and custom packaging for dealers or fleet clients
Photo Overview of Our Workshop
We’ve included actual production images of our bulldozer chain sets:
Track Link Forging & Machining
The raw track links are forged into form, then machined to ensure uniform pitch and hole alignment. Precision is essential for proper sprocket and bushing engagement.
Pin and Bushing
Hardened pins are inserted between the links to create a flexible, load-bearing chain. The sealing system prevents grease leakage and contaminant ingress.
Painting & Surface Coating
After assembly, the entire chain is cleaned and painted with industrial-grade coatings to protect against rust, humidity, and chemical corrosion on job sites.
Final Inspection & Packaging
Before shipping, the chains undergo dimensional checks and torque verification. Chains are then packed securely on wooden pallets or steel frames to avoid deformation.
Technical Specifications (Typical)
- Pitch: 171.45 mm (6.75 inch)
- Material: 35MnB or 40Mn2 track links / 40Cr pins
- Surface Hardness: HRC 52–58
- Chain Type: Available in dry and sealed (lubricated) versions
- Application: Bulldozer track system – D4D and compatible models
OEM Undercarriage Parts for Caterpillar Bulldozer
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| CATERPILLAR | D3 | D3C | D3K | D3K2 | D4 | D4C | D4H | D4K2 |
| D5 | D5B | D5C | D5H | D5K | D5K2 | D5LGP | D5N | |
| D5R | D6 | D6B | D6C | D6D | D6G | D6H | D6K | |
| D6K2 | D6M | D6N | D6R | D6T | D6XE | D7 | D7E | |
| D7G | D7H | D7R | D7R II | D7T | D8 | D8H | D8K | |
| D8L | D8N | D8R | D8T | D9 | D9G | D9H | D9N | |
| D9R | D9T | D10 | D10N | D10R | D10T | D10T2 | D11 | |
| D11N | D11R | D11T | D11T CD | D11T2 | D3XL | D5XL | D6XL | |
| D6LGP | D7LGP | D8LGP | D9LGP | D5C LGP | D4G XL | D6G2 | D5G | |
| D3G | D3C III | D4E | D5E | D6E | D6S | D8S | D10S | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Application Scenarios
This D4D bulldozer chain performs exceptionally well in:
- Land leveling and grading
- Small- to mid-size construction sites
- Farm and ranch land maintenance
- Municipal road work and trenching
- Soft and medium-density soil conditions
Its balanced strength and flexibility make it a go-to solution for light-to-medium-duty earthmoving equipment.
Need Help Matching the Right Chain?
We understand that bulldozer models may vary slightly by year or region. If you need confirmation, our team can assist you by verifying serial numbers or measurements. Reach out any time — we’re here to help.
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.
