Bulldozers Sprocket Segment for Caterpillar D6D

This sprocket segment is designed for Caterpillar D6D bulldozers, ensuring reliable power transmission and excellent wear resistance. Manufactured from high-grade alloy steel and precision-machined to fit perfectly with track chains in heavy-duty applications.

Material50Mn/40MnB
Surface HardnessHRC53-58,deepth: 8-12mm
ColorsBlack 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.

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Description

Heavy-Duty Sprocket Segment for CAT D6D Bulldozers

The Caterpillar D6D sprocket segment is engineered for high-load, high-impact applications in tough earthmoving environments. Designed for track-type tractors, this segmental drive component transmits engine torque into smooth and powerful track propulsion, even under extreme conditions like rock, clay, or rugged mining terrain. Its modular segmented design also allows easier replacement and maintenance on-site, reducing downtime.

Forged from Tough Steel, Built for Bulldozer Work

This sprocket segment is manufactured using premium 35Mn or 40Mn2 steel, known for excellent weldability and wear resistance. The segment undergoes precise forging and CNC machining before being heat-treated to enhance surface hardness and internal toughness. The teeth are induction-hardened to reach HRC 50–58, ensuring long-lasting engagement with the track link under heavy load conditions.

Key Features and Advantages

  • Seamless compatibility with CAT D6D and equivalent machines
  • Segment design allows cost-effective replacement—no full sprocket change required
  • High surface hardness ensures long-term wear resistance
  • Precision-machined mounting holes for accurate bolt fit and stable installation
  • Anti-corrosion coating provides rust resistance in wet or abrasive environments
Sprocket Tooth Rough Machining

Tooth Rough Machining

The sprocket blank is machined on a CNC lathe or gear hobbing machine to form the basic tooth profile.

Sprocket Inner Ring Installation & Precision Machining

Inner Ring Precision Machining

The inner ring is inserted and the entire part is precisely machined to ensure concentricity and dimensional accuracy.

Drilling

Drilling

Mounting and lubrication holes are drilled to meet the installation and functional requirements.

Tooth Grinding & Finishing

Tooth Grinding & Finishing

After heat treatment, the sprocket teeth are ground or polished to remove burrs and ensure smooth engagement.

sprocket Surface Cleaning

Surface Cleaning

The sprocket undergoes surface cleaning, removing scale and residue, preparing it for surface treatment.

Sprocket Painting & Final Coating

Painting & Final Coating

The sprocket is coated with durable industrial paint (available in various colors), providing corrosion resistance and a clean, professional appearance.

OEM Undercarriage Parts for Caterpillar

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.

Compatible Komatsu Models

This sprocket segment fits a wide range of D6 series bulldozers and equivalent models:

  • Caterpillar D6D / D6D LGP / D6D SA / D6C / D6C SA / D6M XL
  • Reference part number: 173-0945, 8E9041, 173-0946, 173-0946, 6I8078

Equivalent undercarriage frame bulldozers (upon dimension confirmation)

Note: Always confirm with machine serial number or drawings for accuracy.

Suitable Work Environments

The D6D sprocket segment is ideal for heavy-duty bulldozing operations such as:

  • Land clearing and road construction
  • Open-pit mining and quarry pushing
  • Embankment and slope work
  • Agricultural grading and reclamation

Thanks to its enhanced structural integrity, the sprocket performs well in dry dust, moist clay, or gravel environments without deformation or premature wear.

Maintenance Advice for Extended Use

To maximize lifespan and minimize unexpected failures:

  • Keep track tension within factory-recommended levels
  • Regularly inspect the mating area between sprocket teeth and track links
  • Monitor bolt torque and check for loosening under heavy vibrations
  • Replace worn segments promptly to avoid chain skipping or drive instability
  • Always replace all segments in the same sprocket group to ensure balance
Shipping & Delivery

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.

excavator parts loading truck 4
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excavator parts loading truck 1

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.

BULLDOZER UNDERCARRIAGE PARTS FOR INQUIRY NOW