Factory Excavator H Link Replacement for Caterpillar E307D
Our H-link for Caterpillar E307D excavators is built from high-strength steel with precision-machined joints, designed to ensure long-lasting bucket linkage stability and performance. It is engineered to handle the stress of continuous digging, loading, and grading 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.
Function & Application of the E307D H-Link
The H-link (also called the center link or H-shaped bracket) plays a crucial role in the excavator’s front-end structure. Positioned between the boom and the bucket linkage system, it connects the bucket to the two side links and supports smooth, synchronized movement.
In the Caterpillar E307D, the H-link allows for precise digging angles and consistent force distribution across the bucket, improving control and efficiency in trenching, lifting, and backfilling tasks. A well-fitted H-link helps reduce excessive play in the linkage, maintaining machine accuracy and minimizing structural wear.
Material Selection & Structural Design
From raw material cutting to CNC machining and full weld assembly, each E307D H-link goes through a tightly controlled production process:
- Cutting & Profiling – Plates are cut according to CAD drawings with precision plasma cutters.
- Bending & Assembly – Shaped and assembled with jigs to maintain geometric consistency.
- Welding – Full-penetration welding in stress-bearing zones ensures maximum durability.
- Machining – Pin holes are CNC-machined to exact tolerances, ensuring smooth pin fitment.
- Inspection & Finish – Dimensional checks, hardness tests, and surface treatments are performed before painting and packaging.
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.
Compatibility & Fitment
This H-link is specifically engineered for:
- Caterpillar E307D
- Compatible with other CAT 307 series models using similar bucket linkage geometry.
If you're unsure whether this part fits your machine, simply share your excavator’s serial number, frame drawing, or link rod pin size, and our engineers will help verify compatibility within 24 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.
Why Choose Us for Your E307D H-Link Supply?
- OEM-Level Precision
Our H-links are built to match Caterpillar’s original specifications, ensuring perfect alignment, easy installation, and long service life with no modification required. - High-Quality Steel & Workmanship
We use certified Q235B/Q345B steel, coupled with precision CNC machining and full-penetration welding to deliver durability in even the harshest jobsite conditions. - Strict Quality Control
From raw material inspection to finished product testing, every piece is checked for dimensional accuracy, pin-hole tolerance, and weld integrity. - Photo & Video Pre-Shipment Verification
We provide real-time photos and videos of the final product before shipping to guarantee transparency and peace of mind. - OEM/ODM Branding Support
We offer logo stamping, customized packaging, and flexible batch production to support global distributors and excavator part dealers. - Fast Response & Global Shipping
Our team offers 24-hour technical verification and fast delivery worldwide, ensuring your project stays on schedule with minimal downtime.
FAQ – Frequently Asked Questions
Q: Can I customize the pinhole size or surface treatment?
A: Yes. We can adjust bore sizes or finish type based on your technical drawing.
Q: What if I only have the old broken H-link?
A: Send us photos with basic dimensions (center distance, thickness, hole diameter), and we can reverse-match or advise.
Q: Do you offer paired link rods (link arms)?
A: Yes — we offer complete linkage sets including H-link and link rods for CAT 307D and other models.
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.
