How excavator and loader parts are classified for customs

If you are importing undercarriage parts, the classification question arrives before the delivery does. This page does not give you a code to copy — classification depends on the specific part, its material and its function, and a wrong code is a customs problem, not a paperwork problem. What it does is explain how the decision is made and what your supplier needs to provide.

Why the same part gets classified differently

Two importers can receive different classifications for what looks like the same roller. The usual reasons:

• Material. A casting and a fabricated weldment may fall under different subheadings even when they perform the same function.
• Function stated on the invoice. "Part of machinery" and "part of lifting equipment" are different statements, and the invoice wording is what the broker works from.
• Machine type. Parts declared for an earthmoving machine and parts declared for a material handling machine can diverge at the four- or six-digit level.
• Whether the part is identifiable. A finished, identifiable component is treated differently from a semi-finished blank.

This is why a supplier who has only ever classified complete machines will hesitate at a track shoe. The classification logic is part-specific.

What the general area looks like

Undercarriage and wear components for earthmoving machinery conventionally sit in the chapter covering machinery parts rather than the chapters covering the base materials. That much is stable. What is not stable enough to publish here is the specific heading and subheading for each item — that depends on the four factors above, and your customs broker is the party who confirms it against the current tariff schedule for your destination.

We deliberately do not print code numbers on this page. A code copied from a supplier's website, applied to a tariff that changed, is a worse outcome than no code at all.

What your supplier must give you

A useful commercial invoice for a parts shipment carries more than a part name:

1. Precise description — not "excavator parts" but "track roller, cast steel, for crawler excavator undercarriage".
2. Material — casting, forging, fabricated steel, rubber, and the grade if known.
3. Function — what the part does on the machine.
4. Machine application — the machine class it fits, and whether it is a wear part or a structural part.
5. Photographs — a clear photo of the part and, where present, the casting mark.
6. Net and gross weight per item — needed both for freight and for any weight-based duty calculation.

If your supplier cannot supply all six, the broker is guessing, and guessing is what produces holds.

The question to ask your broker, precisely

Do not ask "what is the HS code for undercarriage parts". Ask:

"For a cast steel track roller for a crawler excavator, declared as a part of earthmoving machinery, what is the classification and does the material change it?"

That gives the broker the four variables at once and gets you an answer you can use.

Where the risk actually sits

• Underpayment of duty — assessed later, with interest and penalties. This is the expensive direction.
• Incorrect restriction flags — some headings carry licensing or certification requirements that similar-looking headings do not.
• Consistency across shipments — the same part classified two ways across two shipments invites questions even where neither was wrong on its own.

How we handle it

We describe the part precisely enough for a broker to classify: material, function, machine application, weight and photographs. We do not choose the code for you, and we do not print codes on this site — that is your broker's call in your jurisdiction. What we can do is give your broker everything they need to make it in one pass.

Trademark notice

Machine brand names and part numbers are used only to describe fitment and application. We are not an authorised dealer of any machine manufacturer.

Reviewed by Zhonglei M&E parts desk — export trading partner for undercarriage and wear parts. Last updated 2026-11-13.