Link Rod Excavators Parts Supplier for Caterpillar E320
High-performance link rod specifically engineered for Caterpillar E320 excavators. Forged from Q345B or Q235B steel and CNC-machined for accurate pin fitment. Anti-corrosion coated for long-lasting durability in earthmoving, utility, and construction operations.
| Colors | Black or yellow or customized |
|---|---|
| Surface Hardness | HRC52-58 |
| Material | Q235B, Q345B |
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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.
Key Function in the CAT E320 Link Rod
The link rod in a Caterpillar E320 plays a vital role in transferring force from the bucket cylinder to the bucket arm, converting hydraulic pressure into mechanical digging motion. As part of the bucket linkage group, this component must withstand repetitive motion, impact loads, and harsh working environments.
Whether used in urban construction, civil engineering, or pipeline installation, the E320's workgroup relies on the link rod for consistent articulation and digging force. A poorly manufactured or worn link rod can cause misalignment, bushing wear, and loss of hydraulic efficiency, eventually compromising the excavator’s performance.
Forged Steel Body for Strength and Reliability
Our link rods for E320 excavators are forged from either Q345B or Q235B structural steel, selected based on operating intensity:
- Q345B provides higher yield strength and better fatigue resistance, ideal for jobs with rock, compacted soil, or heavy bucket loads
- Q235B is suited for general-purpose digging and budget-conscious repairs
Closed-die forging improves grain structure and eliminates casting defects like porosity or inclusions. The result is a strong, impact-resistant rod that can endure thousands of excavation cycles without cracking or bending.
High-Precision Machining & Corrosion Protection
After forging, all functional surfaces—such as pin bores, joint ends, and bushing seats—are CNC machined to extremely tight tolerances. This ensures perfect alignment with OEM pins and reduces stress on surrounding components.
The surface is then treated with:
- Shot-blasting + primer paint for dry or standard environments
- E-coating (electrophoretic coating) for high-humidity, muddy, or chemical-exposed conditions
These coatings prevent rust, scaling, and surface abrasion, extending the rod’s working life in the field.
Pre-Machining Storage
After forging and rough shaping, each link rod is properly stored in preparation for precision machining and heat treatment. These solid, semi-finished parts are neatly arranged in batches — showcasing both our forging strength and our ability to manage stable, large-scale production.
Export-Ready Packaging
After completing all machining, quality checks, and anti-corrosion treatment, each finished link rod is carefully packed using reinforced pallets or wooden crates. This ensures safe handling and long-distance transport. Every package is clearly labeled for easy tracking, and logo or barcode customization is available upon request.
Compatible Models
This link rod is compatible with the following Caterpillar excavators:
- CAT E320 / E320B / E320C / E320D / E320DL / E320GC
- Also compatible with certain 320CL or 320D2 series (check linkage spec)
Not sure which version you need? Send us your casting number, machine serial, or drawing, and we’ll confirm compatibility within 12 hours.
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.
Real-World Use: Built for Harsh Work Conditions
The CAT E320 is one of the most widely used medium excavators in the world. It’s commonly deployed in:
- Site preparation and foundation trenching
- Rural road construction and grading
- Quarry work and loose material rehandling
- Municipal water and electrical trenching
In these conditions, the link rod must remain structurally sound and dimensionally stable, even under repeated directional load changes. Our link rods are designed to minimize bore deformation, hydraulic misalignment, and linkage fatigue, ensuring the bucket performs with precision throughout every cycle.
Maintenance Advice for Long-Term Use
To extend the working life of your CAT E320 link rod:
- Lubricate pin joints every 250–300 operating hours
- Replace bushings and pins together with the link rod to maintain system balance
- Inspect regularly for bore distortion, scoring, or corrosion spots
- Avoid excessive side-force or unbalanced bucket movements during operation
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.
