Bulldozer Undercarriage Parts D61 D65 D85 Track Chain fit Komatsu Dozer
Komatsu D61, D65, and D85 bulldozer track chains are manufactured from premium alloy steel with advanced heat treatment for maximum durability. Designed for heavy-duty applications, these track chains deliver superior strength, precise fit, and extended service life, ensuring reliable performance across mining, construction, and earthmoving projects.
| 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 is a vital undercarriage component for Komatsu bulldozers such as D61, D65, and D85. It supports the entire machine’s weight, transfers power from the sprocket to the track shoes, and ensures smooth movement across challenging terrains. A high-quality track chain is essential for maximizing productivity, minimizing downtime, and extending the bulldozer’s undercarriage life. Our Komatsu track chains are engineered with precision to match OEM specifications, delivering both strength and durability in demanding mining, forestry, and construction applications.
Material and Heat Treatment
Durability begins with superior materials. The links, pins, and bushings of the Komatsu D61/D65/D85 track chains are made from premium alloy steel such as 35MnB, 40Mn, or 42CrMo. Each material batch is carefully selected for consistent toughness and wear resistance.
The components undergo forging, quenching, and tempering to achieve the ideal hardness profile:
- Links are forged for high tensile strength and precision-machined for accurate pitch dimensions.
- Pins and Bushings are induction-hardened to withstand constant rotation and high-impact loads.
- The final hardness typically reaches HRC 48–56 at the wear surface while retaining a ductile core to prevent breakage.
This advanced heat-treatment process ensures that the chains resist elongation, cracking, and premature wear, even in abrasive environments.
Manufacturing Process
Every Komatsu track chain goes through a strict and controlled production cycle:
- Raw Material Preparation – Alloy steel bars undergo chemical composition analysis before processing.
- Forging & Machining – Links, pins, and bushings are forged under high pressure and CNC-machined for precision.
- Heat Treatment – Quenching and tempering optimize hardness and internal toughness.
- Press-Fit Assembly – Pins and bushings are tightly assembled with controlled interference to ensure long-term reliability.
- Quality Testing – Each chain is inspected for hardness, pitch accuracy, and surface finish.
- Surface Protection – Components are coated with anti-rust treatment before shipment.
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.
Key Features and Advantages
Our Komatsu D61, D65, and D85 bulldozer track chains provide several notable advantages:
- OEM-Compatible Fit: Fully interchangeable with original Komatsu parts, ensuring easy replacement.
- Extended Service Life: Hardened pins and bushings resist elongation, reducing maintenance frequency.
- High Load Capacity: Strong forged links withstand the bulldozer’s heavy weight and operational stresses.
- Enhanced Ground Stability: Accurate chain pitch and strong assembly maintain smooth machine movement.
- Cost-Effective Solution: Designed to reduce undercarriage operating costs over time.
Compatibility and OEM References
This track chain is suitable for:
- Komatsu D61 D65 D85 Bulldozer Series
- D65E-12 Chain Track Shoe Assembly Reference Model: 14X-32-02013
OEM reference numbers are available on request. Customers can provide part numbers or casting codes for confirmation.
| 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.
Application Scenarios
The Komatsu bulldozer track chains are widely used in heavy-duty working environments, including:
- Mining and Quarrying – Handling abrasive rock and constant ground impact.
- Road and Dam Construction – Providing stability on uneven soil and compacted surfaces.
- Forestry and Land Clearing – Ensuring grip and load transfer on soft, muddy, or wet ground.
- Earthmoving Projects – Delivering reliable performance under continuous high load cycles.
Maintenance Recommendations
Proper maintenance helps maximize the service life of Komatsu bulldozer track chains:
- Inspect chain pitch elongation regularly and replace worn components before failure.
- Maintain correct track tension to avoid excessive stress on links and rollers.
- Keep undercarriage clean from packed mud and debris to reduce abnormal wear.
- Replace pins and bushings when surface wear or cracking is detected.
Export Packaging
To ensure safety during transport, all chains are coated with anti-rust oil and packed in fumigation-free wooden crates or steel pallets. Custom labeling and export-ready packaging solutions are available for distributors and end users worldwide.
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.
