Excavator Undercarriage Roller Track Guard for Caterpillar E336D
The E336D track guard (chain guard) is designed to provide reinforced protection to the undercarriage system of Caterpillar 336D excavators. Made with Q355 steel and precision-welded for durability, it prevents track misalignment, debris intrusion, and side impact damage during heavy-duty operations.
| Colors | Black or yellow or customized |
|---|---|
| Surface Hardness | HRC52-58 |
| Material | Q355 |
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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 guard plays a vital role in maintaining excavator stability, protecting the undercarriage, and ensuring efficient operation—especially for heavy-duty machines like the CAT 336D. Acting as a structural shield, it keeps the track chain properly aligned and prevents derailment during tight turns or when traversing uneven terrain. It also blocks debris, rocks, and mud from entering the side frame, reducing wear and avoiding damage to key components like rollers, idlers, and track links. By absorbing and deflecting lateral impact forces, the guard minimizes mechanical strain and contributes to smoother track movement.
Additionally, it helps stabilize the machine’s center of gravity, which is crucial when operating on slopes, loose soil, or in rugged environments such as mining, demolition, or high-load earthmoving. In such conditions, a reinforced chain guard is not just a protective accessory—it’s an essential component for maintaining performance and prolonging undercarriage life.
Manufacturing Process & Materials
We use Q355-grade alloy steel, known for its excellent strength-to-weight ratio, ductility, and resistance to fatigue.
Key steps in the production include:
- Laser cutting and precision bending for tight tolerances
- Robotic welding for structural integrity and consistency
- Machined mounting holes matching the OEM layout
- Surface treatment: anti-rust primer + black paint / powder coating
Every unit is rigorously checked for weld uniformity, structural flatness, and fitment accuracy before leaving the factory.
Design Features & Fitment
- Compatible with original structure: fits Caterpillar E336D frame and bolt pattern without modification
- Reinforced contact surface: thickened area in contact with track link to reduce deformation
- Curved guide edge: smoothly changes the direction of the track chain when turning or climbing a slope
These features provide stable alignment even under heavy loads and ensure that the track chain remains firmly in the correct travel path.
OEM Undercarriage Parts for Caterpillar Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| CATERPILLAR-CAT | CAT55 | CAT225 | CAT245 | CAT311 | CAT312 | CAT312B | CAT315 | CAT320 |
| CAT320B | CAT320C | CAT320D | CAT320L | CAT322 | CAT324 | CAT325 | CAT325B | |
| CAT325BL | CAT330 | CAT330B | CAT330BL | CAT330C | CAT330D | CAT345 | CAT345B | |
| CAT973 | E55 | E70 | E70B | E120 | E120-1 | E120B | E140 | |
| E200B | E200-5 | E215 | E240 | E300B | E300L | E311 | E312 | |
| E312B | E320 | E320BL | E320C | E320D | E320DL | E320L | E320S | |
| E322B | E322C | E324 | E324D | E324DL | E325 | E325B | E325L | |
| E329DL | E330 | E330B | E330C | E330D | E330DL | E345 | E345B | |
| E450 | CAT301.5 | CAT302.5 | CAT303.5 | CAT305 | CAT307 | CAT308 | CAT313 | |
| CAT316 | CAT318 | CAT320E | CAT320GC | CAT323 | CAT326 | CAT329 | CAT336 | |
| CAT340 | CAT349 | CAT350 | CAT365 | CAT374 | CAT375 | CAT385 | CAT385CL | |
| CAT390 | CAT390D | CAT390DL | CAT390FL | CAT395 | CAT6015 | CAT6015B | CAT6015D | |
| CAT6020 | CAT6020B | CAT6030 | CAT6030B | CAT6030D | CAT6040 | CAT6040B | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Compatibility & Fitment for Caterpillar E336D Track Guard
Our heavy-duty track guard is engineered to seamlessly fit the following machines:
- Caterpillar E336D – precise OEM-matching dimensions
- CAT E336DL & E336D2 variants – compatible with identical undercarriage configurations
- Other CAT 336D series models sharing the same frame and mounting points
Common OEM part numbers to help your sourcing:
- 7Y‑2581
- 189‑3861
- 189‑3862
Need help verifying compatibility? An excavator’s serial number, frame layout photo or drawing is usually all we need to confirm fitment quickly and accurately.
Why Choose Our E336D Track Guard?
- OEM Precision – 1:1 fitment with factory bolt positions and frame shape
- Rugged Q355 Steel – Withstands repeated shock and abrasion
- Adaptable Options – Support for logo engraving and custom coating
- High Inventory Turnover – Fast delivery on bulk orders
- Branding Support – OEM/ODM customization for dealers and resellers
Factory Inspection & Shipment Assurance
We understand how critical quality assurance is. That’s why we offer:
- Pre-shipment photos and videos
- Visual inspection of weld seams and hole alignment
- Secure packaging for international shipping
Whether you're a dealer or end-user, you’ll have full visibility before the product arrives.
Installation Tips & Maintenance Suggestions
- Always check mounting bolt torque after the first 50–100 hours
- Remove accumulated debris between the guard and frame regularly
- Inspect for wear or cracks near weld seams during routine service intervals
- Replace guards if significant deformation occurs after impact
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.
