Pistons

Pistons for internal combustion engines, other types

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 8409 99 12 (Pistons) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other engine parts and complete engines under Chapter 84 — including spark-ignition or compression-ignition engines of headings 8407 and 8408 — may carry distinct compliance obligations depending on end-use and applicable quality control orders.

No partner government agency notification covers this tariff line.

A word of counsel

Classification accuracy is the primary risk at this tariff line: pistons for specific engine families — marine, aircraft, or vehicle engines — may attract scrutiny on the intended application, and customs re-classification to a more specific tariff line triggers retrospective compliance and detention pending resolution. Confirm the engine heading (8407 or 8408) the pistons are principally designed for, and document the technical specification — bore diameter, material, engine type — before filing the bill of entry.

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Frequently asked

Does HSN 8409 99 12 require any pre-import registration?

A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.

What changes if the pistons are for a specific engine type covered by a Quality Control Order?

If customs re-classifies the goods to a tariff line falling under an active BIS Quality Control Order — for example, for certain spark-ignition or compression-ignition engine components — retrospective compliance obligations, including BIS registration, would apply.

Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.