Product Specifications

CAT D10N/D10T/D10R 6Y2059 6Y8189 8E7928 3805946 4587813 5263004 Track Link Assembly – Heavy Duty Bulldozer Undercarriage Parts from China Supplier Hangong (DPW PART)

Author: Jack – Technical Overseas Sales,  Undercarriage Parts
Contributing Team:  Undercarriage Parts Global Sales & Customization Team

1. Introduction: The Undercarriage Backbone of Large-Scale Earthmoving

The track link assembly is arguably the single most critical structural component in any crawler bulldozer‘s undercarriage system. It bears the full operating weight of the machine, transmits tractive effort to the ground, absorbs shock loads from ripping and dozing operations, and determines the overall service life of the entire track system. When track links fail—whether through bushing wear, pin elongation, or link cracking—the machine becomes immobile, and downtime costs escalate rapidly.

For the Caterpillar D10 series—the legendary elevated-sprocket track-type tractors that have defined large dozer performance since their introduction in 1977—the demand for high-quality, durable track link assemblies remains consistently strong. The D10 revolutionized the dozer market with its radically different elevated sprocket design, high weight and horsepower, and resilient undercarriage, answering the growing calls from large mining and heavy construction operations for a more powerful dozer.

The CAT D10N, D10R, and D10T represent successive generations of this iconic machine, each incorporating refinements in power, efficiency, and undercarriage durability. Today, these dozers continue to operate in large numbers across surface mines, quarries, and major earthmoving projects worldwide—creating sustained aftermarket demand for replacement undercarriage components.

The track link assemblies referenced by part numbers 6Y2059, 6Y8189, 8E7928, 3805946, 4587813, and 5263004 are direct OEM-equivalent replacements designed specifically for these D10 series machines. Manufactured by Hangong (DPW PART), a trusted China-based supplier of heavy-duty bulldozer undercarriage parts, these components deliver OEM quality at competitive prices, serving mining and construction customers across South Africa, South America, North America, Europe, Russia, South Korea, and beyond.

As the author of this technical overview, I am Jack, responsible for technical overseas sales at DPW Undercarriage Parts. Alongside my colleagues and the broader Heli global sales team, we provide comprehensive undercarriage solutions, aftermarket supply, and OEM customization to customers worldwide. In this article, I will present a complete technical and commercial analysis of the CAT D10 series track link assemblies, including their specifications, manufacturing excellence, and how our team delivers tailored support across diverse global markets.

2. The CAT D10 Series: A Legacy of Mining and Earthmoving Excellence

2.1 Machine Evolution and Market Position

The Caterpillar D10 series has been a mainstay of large-scale earthmoving and surface mining for over four decades. The three primary variants relevant to the track link assemblies discussed in this article are:

2.2 Technical Specifications

Based on comprehensive manufacturer data, the D10 series dozers operate in the following performance envelope:

The D10T, in particular, represents the pinnacle of this lineage. Powered by a formidable Caterpillar C27 ACERT engine delivering up to 580 horsepower, the D10T is designed for maximum productivity in the most demanding mining and heavy construction applications. The latest iteration of the D10 continues this legacy, featuring a stator clutch torque converter and load-sensing hydraulics, and is said to be up to 6% more efficient than the D10T2.

2.3 Undercarriage Configuration

The D10 series employs a sealed and lubricated track (SALT) system with press-fit pin and bushing joints. Each track consists of multiple links connected by pins and bushings, with seal assemblies installed in the counterbores of the links to retain lubricant and exclude contaminants. This design significantly extends undercarriage life compared to dry-track systems, making proper maintenance and timely replacement of worn components critical to cost-effective operation.

3. Technical Deep Dive – CAT D10 Track Link Assemblies

3.1 Part Number Identification and Cross-Reference

The track link assemblies for the CAT D10 series are identified by multiple part numbers, each corresponding to specific configurations or production batches. Understanding these numbers is essential for accurate procurement.

The following part numbers have been cross-referenced as compatible with the D10N, D10R, and D10T models:

The Polish distributor catalog provides a consolidated cross-reference showing that 3805946, 6Y2059, 6Y8189, and 8E7928 are all interchangeable for the D10N model, with alternative cross numbers including CR6075/44 and CR7663/44. This cross-reference information is invaluable for fleet operators who may encounter multiple part number variations across their machine population.

3.2 Physical Specifications

Based on Cat parts data, the 6Y8189 LINK AS-TRACK has a documented weight of 2,028 kg (4,472 lb), indicating the substantial mass of these components. Individual track link assemblies typically include:

• Link bodies – Forged or cast steel with precision-machined rail surfaces

• Bushings – Press-fitted, induction-hardened, often sealed and lubricated

• Pins – High-strength alloy steel, heat-treated for wear resistance

• Seal assemblies – Polyurethane or floating face seals for lubricant retention

• Retaining rings – Securing pins in position

• Thrust rings – Improved design available for D10T/R/N/L models

3.3 Material and Manufacturing Standards

High-quality aftermarket track link assemblies for the CAT D10 series are manufactured to meet or exceed OEM specifications:

Link Material:

• High-strength alloy steel (ASTM A514 grade or equivalent)

• Forged construction for optimal grain flow and structural integrity

• Forged from high-strength 35MNB special steel for maximum structural rigidity

Bushing and Pin Material:

• Through-hardened alloy steel for maximum wear resistance

• Induction-hardened outer surface (55–62 HRC)

• Tough, ductile core (35–42 HRC) to resist cracking under impact

Heat Treatment:

• Quenching and tempering (Q&T) for optimal hardness profile

• Case hardening for bushing outer diameters

• Comprehensive structural reinforcement and advanced heat treatment processes for maximum strength and abrasion resistance

Surface Protection:

• Corrosion-resistant coating meeting or exceeding ASTM A153 standards

• Yellow protective coating or customer-specified finish

3.4 Quality Assurance

Premium aftermarket suppliers subject their track link assemblies to rigorous quality control:

• Spectrographic material analysis – Verification of alloy composition

• Hardness profiling – Rockwell testing at multiple points (surface, subsurface, core)

• Dimensional inspection – CNC coordinate measuring machine (CMM) verification of link pitch, rail height, and bushing diameter

• Magnetic particle inspection (MPI) – Detection of surface cracks on critical components

• Seal integrity testing – Verification of lubricant retention capability

• Fatigue simulation – Cyclic loading tests to validate structural durability

Many aftermarket suppliers also offer ISO 9001 certification and CE marking for EU market compliance.

3.5 Compatibility

The track link assemblies referenced in this article are direct-fit replacements for the following Caterpillar dozer models:

• D10N (primary application)

• D10R

• D10T

• D10T2

• D11N/D11R (certain part numbers have cross-applicability)

Fleet operators should confirm compatibility by cross-referencing the existing assembly‘s specifications—including link pitch, bushing diameter, and overall length—against the replacement part’s dimensions. Our sales team at Heli Undercarriage Parts provides technical verification support for all orders to ensure perfect fitment.

4. Hangong (DPW PART) – Your Trusted China Supplier for Bulldozer Undercarriage Parts

4.1 Company Overview

Quanzhou Hangong Machinery Co., Ltd. (trading as DPW PART) has established itself as a leading China-based manufacturer and supplier of high-quality undercarriage parts for bulldozers and excavators. The company specializes in the complete “Four Wheels and One Track” product line—track chains, track rollers, carrier rollers, front idlers, and sprockets.

Founded in 2018 and headquartered in Nan‘an, Quanzhou—a renowned economic hub in Fujian Province’s southeastern coastal region—Hangong has invested significantly in its manufacturing infrastructure:

• 20-acre modern industrial park – Providing substantial production capacity

• 10,000-square-meter factory – Dedicated to undercarriage component manufacturing

• ¥10 million RMB investment – Reflecting commitment to quality and capability

• 50+ employee team – Including experienced engineers and production specialists

• ISO 9001 and CE certifications – Ensuring compliance with international quality standards

4.2 Manufacturing Capabilities

Hangong (DPW PART) leverages advanced manufacturing technologies to produce undercarriage components that meet or exceed OEM specifications:

• Precision forging and casting lines for link bodies and other chassis components

• CNC machining centers for bearing surfaces and mounting interfaces

• Induction hardening equipment for surface wear treatment

• Automated heat treatment lines for consistent material properties

• Comprehensive quality testing laboratory including chemical spectroscopy, hardness testing, and dimensional inspection

4.3 Perfect Quality, Source Factory Pricing

As a source factory, Hangong provides customers with distinct advantages:

4.4 Custom Undercarriage Solutions

Hangong’s engineering team specializes in custom undercarriage solutions, recognizing that off-the-shelf parts may not always meet the unique demands of specialized projects—such as operating in extreme climates, handling oversized loads, or integrating with retrofitted machinery.

Customization options include:

5. Global Market Coverage – Serving Mining Customers Across Continents

The DPW Undercarriage Parts global sales team—including myself (Jack) in technical overseas sales, Below, I provide an overview of our service capabilities across key geographic markets.

5.1 South Africa – A Strategic Mining Hub

South Africa remains one of the world‘s most significant mining regions, with large installed fleets of Caterpillar bulldozers operating in platinum, gold, diamond, coal, and iron ore mines. The South African mining equipment aftermarket continues to generate sustained demand for replacement parts, particularly as new equipment prices rise and contractors face margin pressure.

The used Caterpillar equipment market remains robust, and emerging markets in Africa are driving significant demand. For customers in South Africa, we offer:

• Direct factory shipping to Durban, Cape Town, and Johannesburg ports

• Technical support for CAT D10 series and other bulldozer models

• Bulk order capability for fleet operators with multiple machines

• Custom packaging to withstand long-distance ocean freight

5.2 South America – Growing Infrastructure and Mining Demand

South America‘s construction equipment market is experiencing robust growth, driven by aggressive infrastructure development agendas across the continent. Brazil, Chile, Peru, and Argentina have particularly high demand for heavy mining and construction machinery, creating substantial aftermarket opportunities.

Chinese trading companies have a strong presence in South American markets, with trade regions spanning the continent. The Heli team serves South American customers through:

• Warehousing partnerships in São Paulo (Brazil) and Buenos Aires (Argentina)

• Spanish and Portuguese technical documentation available upon request

• Support for mining operations in the Andean copper belt and Brazilian iron ore regions

5.3 North America – Quality-Driven Aftermarket

The North American market—including the United States and Canada—demands the highest standards of quality, reliability, and compliance. Mining operations in the Canadian oil sands, U.S. coal fields, and aggregate quarries across both countries require undercarriage components that deliver extended service life in extreme conditions.

European and North American buyers actively seek reliable used equipment and aftermarket parts. For North American customers, we provide:

• Bonded stock availability from warehouse locations

• ISO-certified quality documentation for procurement compliance

• Technical datasheets in English with full specification details

• Sample testing program – 10-piece trial shipments for on-site validation

5.4 Europe – Rigorous Standards, Competitive Solutions

The European mining and construction equipment market is characterized by demanding technical standards, environmental regulations, and cost-conscious fleet operators. European customers require undercarriage parts that meet or exceed OEM specifications while offering competitive pricing.

European distributors play a significant role in parts and machinery supply, with strong regulatory frameworks requiring CE certification and other compliance documentation. The Heli team serves European customers through:

• CE-marked components where applicable

• Fast shipping to Rotterdam, Hamburg, and Antwerp ports

• Technical support for CAT D10 and other bulldozer models

• Compliance documentation for EU market requirements

5.5 Russia and CIS Countries – Resilient Market Demand

The Russian undercarriage component market continues to experience steady demand, driven by ongoing construction, mining, and infrastructure activity. The large installed base of Caterpillar equipment in the region creates ongoing aftermarket requirements.

For Russian and CIS customers, we provide:

• Direct shipping to Vladivostok, St. Petersburg, and Novorossiysk ports

• Russian-language technical documentation available upon request

• Customs clearance support for efficient border processing

• Aftermarket parts for CAT D10, D9, D11, and other Caterpillar dozer models

5.6 South Korea – Precision Manufacturing Demands

South Korea represents a sophisticated market with high expectations for product quality, precision, and delivery reliability. Korean customers—including parts distributors and equipment rental companies—demand components that match the tight tolerances of Korean-manufactured equipment.

Asia-Pacific markets, including South Korea, are key growth regions for undercarriage component demand, driven by ongoing infrastructure and industrial development. The Heli team serves South Korean customers through:

• Precision machining to tight dimensional tolerances

• Fast shipping to Busan and Incheon ports

• Sample approval process prior to bulk production

• Technical consultation for model-specific fitment verification

6. Aftermarket Supply and OEM Customization Solutions

6.1 Global Undercarriage Market Context

The global undercarriage components market is experiencing substantial growth, driven by expanding construction, mining, and agricultural activities worldwide. According to Verified Market Reports, the undercarriage components market was valued at USD 4.2 billion in 2024 and is estimated to reach USD 6.5 billion by 2033, growing at a CAGR of 5.2% from 2026 to 2033. Other sources project even larger figures, with Market Intel forecasting a market size of $6.2 billion in 2024 reaching $9.1 billion by 2033 at a CAGR of 4.3%.

Key factors propelling market expansion include:

• Technological advancements in material engineering, enhanced durability, and wear resistance

• Increasing demand for efficient and reliable undercarriage systems in mining operations

• Rising replacement demand due to the aging fleet of heavy machinery, creating substantial growth opportunities for aftermarket components

• Growing infrastructure development in emerging economies, particularly in the Asia-Pacific region

6.2 Aftermarket Parts Supply

As a source factory, Hangong (DPW PART) is positioned to capture this growing aftermarket demand by offering:

• Direct factory pricing – 30–50% below dealer pricing on comparable quality

• Short lead times – 15–25 days for standard production runs

• Low minimum order quantities – 200 pieces for initial sample trials

• Mixed container shipments – Combine track links, idlers, rollers, and sprockets in one order

• 2-year warranty available on premium component lines

6.3 OEM Customization Services

For customers requiring parts under their own branding or with specific engineering modifications, Hangong offers comprehensive ODM (Original Design Manufacturing) services:

6.4 Complete Undercarriage Solutions

In addition to the track link assemblies referenced in this article, Hangong manufactures a complete range of undercarriage components for Caterpillar D10 series and other bulldozer models:

• Track chains – Sealed and lubricated (SALT) or dry configurations

• Track rollers – Bottom rollers for load distribution and track guidance

• Carrier rollers – Top rollers supporting the upper track run

• Sprockets – Drive rims with precision-machined teeth for final drive engagement

• Track shoes – Various widths and patterns (single-grouser, double-grouser, flat, SALT/PPR)

• Front idlers – For track tensioning and guidance

• Complete track groups – Fully assembled ready-to-install solutions

7. The DPW Undercarriage Parts Global Sales Team

Behind every reliable undercarriage component is a dedicated team of sales professionals and technical experts. DPW Undercarriage Parts is not just a supplier—it is a full-service partner offering customized global sales solutions for undercarriage components.

7.1 Author: Jack – Technical Overseas Sales

I am Jack, responsible for technical overseas sales at DPW Undercarriage Parts. My role bridges the gap between field requirements and engineering reality. Whether you need wear life predictions for a specific mining application, urgent air freight to a remote mine site, or technical documentation for procurement compliance, I coordinate the response from initial inquiry through post-delivery support.

7.2 The Global Sales Team

The DPW global sales team, under the strategic leadership of Jack Van—the major shareholder of HANGONG—manages worldwide customer relationships, including:

• Technical consultation – Model-specific fitment verification and application recommendations

• Logistics coordination – Warehousing in key markets and 24/7 supply chain management

• After-sales support – Warranty programs, spare parts availability, and technical guidance

• Strategic partnerships – Long-term agreements with mining houses and parts distributors

Our overseas business is conducted through direct communication with our sales team—no third-party intermediaries—ensuring full transparency in pricing, lead times, quality control, and after-sales support.

8. Ordering Information and Technical Support

8.1 Product Specifications – CAT D10 Track Link Assemblies

9. Conclusion – Why Choose Hangong (DPW PART) for Your D10 Undercarriage Needs

The CAT D10 series bulldozer remains one of the most capable large dozers ever produced, with thousands of units still operating in mines and major construction sites worldwide. Keeping these machines productive requires reliable, high-quality undercarriage components that match OEM specifications and deliver extended service life in demanding environments.

The track link assemblies referenced by part numbers 6Y2059, 6Y8189, 8E7928, 3805946, 4587813, and 5263004—manufactured by Hangong (DPW PART)—represent the optimal balance of OEM-equivalent quality, competitive pricing, and reliable supply.

As the global sales team at Heli Undercarriage Parts, we are committed to providing:

• Technical expertise – Backed by advanced manufacturing capabilities and engineering support

• Global reach – Serving mining customers across South Africa, South America, North America, Europe, Russia, South Korea, and beyond

• Customer focus – Direct communication with our sales team, no third-party intermediaries

• Supply reliability – Source factory production with full quality control and ISO/CE certifications

Whether you are a mining fleet operator seeking to reduce parts costs, a distributor building inventory for the aftermarket, or an OEM requiring custom undercarriage components, the Heli team is ready to support your requirements.

Contact us today to discuss your Caterpillar D10 undercarriage parts needs.

Author: Jack – Technical Overseas Sales, Heli Undercarriage Parts. Technical data based on manufacturer specifications, industry standards, and cross-referenced parts catalogs. For reprint permission or technical inquiries, contact the author directly.