Heavy-Duty Sprocket Segment for Caterpillar CAT D8R Bulldozers
Engineered for Caterpillar D8R bulldozers, this sprocket segment delivers exceptional durability and traction under extreme working conditions. Built from high-strength alloy steel and heat-treated for maximum resistance to wear and impact. Ideal for demanding earthmoving tasks.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
Quick Quote Request
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 sprocket segment for Caterpillar D8R bulldozers is built to withstand the intense torque and pressure experienced during heavy-duty dozing, ripping, and pushing operations. This segment is a critical drive component in the undercarriage system, responsible for transferring the engine’s power to the track chain with precision and stability. Its segmented design allows for easier replacement compared to one-piece sprockets, minimizing equipment downtime in the field.
Premium Materials and Optimized Heat Treatment
To ensure superior strength and long-term performance, the D8R sprocket segment is forged from high-grade 35Mn or 40Mn2 steel. The segment undergoes multiple precision machining processes and strict heat treatment procedures. After induction hardening, the tooth surface achieves a hardness of HRC 50–58, offering exceptional resistance to wear, impact, and deformation in challenging environments.
This combination of strong core toughness and hardened outer surface enables the segment to perform reliably even during prolonged operation on abrasive terrain like rock, clay, or compacted soil.
Tooth Rough Machining
The sprocket blank is machined on a CNC lathe or gear hobbing machine to form the basic tooth profile.
Inner Ring Installation & Precision Machining
The inner ring is inserted and the entire part is precisely machined to ensure concentricity and dimensional accuracy.
Drilling
Mounting and lubrication holes are drilled to meet the installation and functional requirements.
Tooth Grinding & Finishing
After heat treatment, the sprocket teeth are ground or polished to remove burrs and ensure smooth engagement.
Surface Cleaning
The sprocket undergoes surface cleaning, removing scale and residue, preparing it for surface treatment.
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.
Key Advantages of the D8R Sprocket Segment
- Designed specifically for CAT D8R bulldozers and similar models
- Modular segment construction for convenient on-site maintenance
- Precision-machined for stable mounting and accurate engagement
- Heat-treated teeth for extended lifespan and reduced wear
- Rust-resistant industrial paint finish for added protection
Compatible Bulldozer Models
This sprocket segment is compatible with the following machines:
- Caterpillar D8R / D8R II / D8RLGP
- Caterpillar D8N / D8L (Depending on undercarriage variant)
- D8R sprocket segment reference part number: 2782375, 278-2363
Custom compatibility available upon measurement confirmation
Note: Always verify part number with machine serial or technical drawing before order confirmation.
Ideal for Harsh Working Conditions
The D8R sprocket segment is specifically engineered for:
- Mining operations and rock loading zones
- Road construction and site leveling
- Slope stabilization and dam building
- Land clearing and forest road maintenance
Its high wear resistance and precision engagement reduce the risk of track jumping or uneven load distribution, extending the lifespan of the entire undercarriage system.
Maintenance Tips for Longer Service Life
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
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.
Quick Quote Request
Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
