D355 Bulldozer Sprocket Segment Drive Component fit Komatsu
Heavy-duty sprocket segment for Komatsu D355 bulldozers. Induction hardened teeth, forged alloy steel, and CNC-machined mounting for high-load reliability in mining and construction.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| 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.
This sprocket segment is specially designed for Komatsu D355 bulldozers, delivering reliable performance in mining, heavy construction, and land clearing. Its segmented structure simplifies maintenance by allowing individual segment replacement without disassembling the entire track, reducing downtime and operational costs.
Precision Engineering & Reinforced Tooth Design
Robust Materials and Surface Hardening
Each D355 sprocket segment is forged from high-tensile alloy steel such as 35SiMn or 40Mn2, selected for its wear resistance, toughness, and strength under heavy loads. After forging, the tooth area undergoes induction hardening to reach HRC 50–58, significantly enhancing its resistance to abrasive wear and impact during continuous dozing operations.
Tight Tolerances for Seamless Fit
The inner bore and bolt holes are CNC-machined to strict tolerances, ensuring concentricity and easy alignment with the final drive hub. The tooth profiles are designed to mesh perfectly with track links, promoting smooth track motion, reduced vibration, and longer lifespan for both sprocket and chain.
Key Features of the D355 Sprocket Segment
- Compatible with Komatsu D355A-3 / D355A-5 / D355C and other large dozers with similar final drives
- Segmented design for convenient replacement without removing the track chain
- Heat-treated teeth for superior wear resistance in harsh terrain
- Accurate bolt hole machining ensures solid fitment and secure installation
- Anti-corrosion coating enhances durability in wet, muddy, or acidic environments
- Supports OEM customization for special working conditions or track setups
Compatible Models & OEM Part Numbers
Model Compatibility
This sprocket segment fits:
- Komatsu D355A-3
- Komatsu D355A-5
- Komatsu D355C
Some custom applications within Komatsu D300 and D350 series machines (please confirm dimensions)
OEM Reference Numbers
- 175-27-22323
- 175-27-22324
- 175-27-22325
Note: Always confirm your serial number or provide machine drawings before placing an order.
How It’s Made
We ensure each D355 sprocket segment performs in high-load environments by following a rigorous production flow:
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 Komatsu
| 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.
Suitable Work Environments
The Komatsu D355 sprocket segment is built for the most demanding conditions, including:
- Surface mining operations requiring uninterrupted track motion over rock, gravel, and debris
- Heavy earthmoving and large-scale land development
- Extreme load pushing tasks in quarry or forestry environments
- Infrastructure development where downtime is unacceptable and longevity is key
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
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.
