Excavator E320 Track Chain Track Link Fitment and Replacement Guide

To confirm an Excavator E320 track chain or track link will fit, do not rely on the “E320” model name alone. Verify the machine’s make, model year or serial number, undercarriage configuration, and the measurements or part numbers of the installed chain before ordering. E320 machines can differ by production version and undercarriage setup, so a part that looks similar may not be interchangeable. I recommend matching the replacement against machine records and the existing components, then asking the supplier to confirm compatibility in writing before purchase.

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Key Takeaways

• “E320” is a starting point for identification, not a complete fitment specification.
• Confirm the machine serial number, track-chain part number, link count, and critical dimensions before requesting a quotation.
• Replace a complete chain when wear is widespread; consider individual links only when the chain design and repair method allow it.
• Share clear photos and measurements in millimeters with Zhonghai Jiuchuan so our team can review the request and clarify what information is still needed.

Who This Guide Is For

This guide is for equipment dealers, fleet maintenance teams, repair shops, and importers sourcing an E320 excavator track chain or track link. It is intended to help buyers prepare a fitment inquiry and assess replacement options, not to replace the machine manufacturer’s service instructions. If the machine has been modified, rebuilt, or fitted with a non-original undercarriage, the original model information may not describe the parts currently installed. In that case, identify the existing chain and related components directly.

What the Track Chain and Track Link Do

A track chain is an assembled undercarriage component made from connected links and associated joints. The links provide the structure that engages with the sprocket and carries the track shoes, while the joint components allow the chain to articulate as it moves around the undercarriage. Track shoes are attached to the chain, but they are separate parts and should not be confused with track links when ordering.

Buyers may use “track link” to mean an individual link, a connected link assembly, or the chain assembly as a whole. That wording can create quotation errors if the supplier and buyer are discussing different scopes. State clearly whether you need a complete track chain, a chain assembly without shoes, individual links, or related pins and bushings.

Types, Materials, and Configuration

Track-chain assemblies are supplied in different configurations according to the machine and undercarriage design. Differences may include link geometry, joint arrangement, shoe mounting details, and the number of links in the assembly. Buyers may also encounter descriptions such as sealed, lubricated, or dry-type chain; confirm the actual construction and compatibility rather than selecting by a label alone.

Steel and heat-treatment specifications can influence wear behavior and service life, but these should be evaluated using supplier documentation for the specific product. I avoid assuming that a particular material grade or hardness applies to every E320 chain. Request the relevant specification, inspection information, or product documentation when these factors are part of your purchasing requirements.

How to Confirm E320 Fitment

1. Identify the Machine

Record the manufacturer, full model designation, serial number, and production year if available. Include the market or region of operation when known, because machine configurations and replacement references may vary. If the serial plate is unreadable, share photographs of the plate area and machine identification documents rather than guessing at the missing digits.

2. Identify the Existing Undercarriage

Check the existing chain for stamped or cast numbers, labels, and supplier markings. Photograph the full chain, the link profile, the joint area, and the points where the track shoes attach. A clear image with a ruler or other scale can help a supplier understand the component, but photographs should support—not replace—part-number and dimensional checks.

3. Record the Critical Information

For a complete chain inquiry, record the total number of links and provide any available chain or assembly part number. Measure critical dimensions in millimeters, using the appropriate service manual or supplier guidance to identify the measurement points. If the chain is worn, measurements taken from it may not represent its original dimensions, so note the wear condition and include any known original specification.

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• Machine make, model, serial number, and production year
• Existing chain or assembly part number, if visible
• Total link count for each side and whether both sides need replacement
• Relevant dimensions in millimeters, taken at clearly identified points
• Track-shoe details and whether shoes are required with the chain
• Photos of markings, the full assembly, joints, and mounting areas

There are two track sides on a typical excavator, so state whether the inquiry is for one chain or a matched pair. As a practical comparison, a maintenance team can measure 10 consecutive pitches in millimeters and share the result, while also confirming the correct measuring method with the supplier. This comparison can help flag discrepancies, but it is not a substitute for the machine’s specified dimensions or a supplier’s fitment confirmation.

4. Confirm Related Components and Scope

Inspect the sprockets, rollers, idlers, track shoes, and other connected undercarriage parts before finalizing a chain order. Their condition can affect the replacement plan, and worn neighboring components may need attention at the same time. Confirm whether the quotation includes shoes, connecting hardware, or other items; do not assume they are included in a chain assembly.

Choosing a Replacement Approach

A complete chain replacement is generally the clearer option when wear is distributed across many links or when the assembly’s condition is inconsistent. Individual link replacement may be considered for localized damage, but only if the chain design supports the repair and the replacement components match the installed assembly. A qualified technician should assess the repair against the machine manufacturer’s service guidance and safe work procedures.

Do not make the decision based on visible damage alone. Ask the maintenance team to document chain condition, joint wear, sprocket engagement, and any operating symptoms, then compare those observations with service limits available for the machine. When service limits are unavailable, request inspection guidance rather than treating an unverified measurement as an acceptable wear threshold.

Pricing, MOQ, and Lead-Time Questions

Pricing depends on the confirmed configuration, order scope, quantity, packaging, destination, and requested delivery terms. Minimum order quantity and lead time can vary by product availability and production requirements, so I recommend requesting these details for the exact part configuration rather than relying on a general estimate. A complete quotation should make clear whether the price covers one chain or two, and whether track shoes or other components are included.

For an accurate inquiry to Zhonghai Jiuchuan, send the machine identification, existing part number, link count, measurements, photos, order quantity, destination country, and target delivery schedule. Our team can review the information, ask for clarification where needed, and discuss available sourcing options subject to fitment confirmation and current availability. Written confirmation of the agreed configuration helps reduce avoidable purchasing and installation issues.

Supplier Evaluation Checklist

• Does the supplier ask for the serial number or other machine-identification details?
• Does the quotation identify the chain configuration and the quantity supplied?
• Are included and excluded items, such as shoes or connecting parts, clearly stated?
• Can the supplier provide relevant product specifications or inspection documentation for the quoted item?
• Are packaging, delivery terms, lead time, and any minimum order quantity stated clearly?
• Is there a process for resolving fitment questions before shipment?

These questions help buyers compare like-for-like offers rather than choosing on price alone. If a supplier cannot confirm fitment from the information provided, treat that as a reason to clarify the request—not as proof that the component is unsuitable. Keep the final part number, scope, and fitment confirmation with the purchase order and maintenance records.

Conclusion: Next Steps for a Correct E320 Track Chain Order

The safest way to source an Excavator E320 track chain or track link is to verify the exact machine and undercarriage configuration before ordering. Start with the serial number and existing part markings, then record the link count, relevant dimensions in millimeters, chain condition, and required supply scope. Confirm whether you need one chain or both, and whether shoes or related components are part of the request.

Send those details and clear photographs to Zhonghai Jiuchuan for a fitment review and quotation discussion. Ask for the configuration, availability, lead time, and included components to be stated clearly before placing the order. This preparation gives your team a practical basis for comparing suppliers and taking the next step toward a compatible replacement.