E320 Bucket Linkage H Link for Caterpillar CAT Excavator
Our H Link (center yoke link) for the Caterpillar E320 excavator is forged from high-tensile alloy steel and CNC-machined for exact fitment. Designed to connect the boom and bucket linkage, it ensures structural integrity and load transfer during intense digging cycles.
| 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.
The H Link, often called the yoke or center bucket link, plays a crucial role in the excavator’s bucket linkage system. For the E320, it:
- Connects the bucket link rods to the boom, forming the central articulation point
- Transfers hydraulic force efficiently from the boom to the bucket
- Stabilizes bucket movement, ensuring balanced digging and lifting motion
- Withstands repeated stress from tough materials like rock, clay, and concrete
A worn or misaligned H-link can cause unbalanced digging force, bucket swing deviation, or premature wear in the surrounding pins and bushings.
Materials & Manufacturing Process
Our E320 H-links are engineered for heavy-duty performance, made with:
- Q345B or 40Cr alloy steel – excellent mechanical strength and shock resistance
- Closed-die forging – eliminates internal voids, enhances load-bearing durability
- CNC machining – ensures accurate bushing bores and pin-hole alignment
- Induction hardening at key points – improves wear resistance without making the core brittle
- Surface coating – black oxide or anti-rust primer for corrosion resistance
Every unit undergoes dimensional checks and bore tolerance testing to guarantee fitment.
Factory Stock & Packaging Showcase
To give you a clear look at our production and delivery process, here are real photos from our facility:
Pre-Machining Storage
Before final processing, each H-link is carefully stored after forging and initial shaping. You can see the robust raw units neatly stacked and ready for CNC machining and heat treatment — a testament to our in-house forging capability and batch processing control.
Export-Ready Packaging
Once machining, inspection, and anti-rust treatment are complete, the finished H-links are securely packed in palletized crates or wooden boxes, ensuring safe transport over long distances. All packages are labeled for easy identification and can be customized with your logo or barcode if required.
These images reflect not only our large-scale manufacturing capability, but also our commitment to quality control, cleanliness, and shipment security — from the raw part to the finished product.
Compatible Models & Part Numbers
This H-link is suitable for:
- Caterpillar E320 series, including:
E320, E320B, E320C, E320D, E320DL, E320GC
Additional numbers available upon request.
Not sure about compatibility? Just send us your machine’s serial number or a photo of the original H-link — our technical team will confirm fitment 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.
Built for Harsh Working Conditions
The E320 H-link is designed to operate in high-load, high-frequency conditions including:
- Mining and quarry operations
- Demolition sites with uneven force impact
- Heavy-duty excavation and loading in rocky terrain
- Urban earthmoving with continuous hydraulic cycles
The smooth internal bushing bore reduces pin wear, while the robust cross section resists deformation under high pressure.
Key Advantages of Our E320 H-Link
- OEM Fitment Assurance – Matches Caterpillar factory specs precisely
- Long Service Life – Heat-treated at stress points to resist deformation and cracking
- Easy Installation – Clean machining and pre-fitted bushing options
- Custom Branding Available – Logo engraving and packaging per request
- Pre-Shipment Inspection – Video or photo confirmation before delivery
- Support for Bulk Orders – Stable stock and fast global dispatch
FAQ – Frequently Asked Questions
Q: Do you supply the bushings together with the H-link?
A: Yes, bushings can be pre-installed or supplied separately upon request.
Q: Can you support customized H-links for other CAT models?
A: Absolutely. We manufacture a wide range of links for CAT, Komatsu, Hitachi, and more.
Q: How do I confirm size if my old H-link is damaged?
A: Just send us the pin diameter, overall length, or photos — we’ll help identify the right replacement.
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.
