HS Code for Oil Drain Plug Assemblies (US)
PRIMARY CLASSIFICATION RESULT (US)
The primary 6-digit Harmonized System (HS) code for oil drain plug assemblies is 8409.91 (Other, Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines)). Under the 2026 US HTS, representative general duties are Free [Official Source].
Classification guidance note.
Candidate Subheadings & Disambiguation Matrix
| HS Subheading | WCO Subheading Description | Disambiguation Rule / Notes | Action |
|---|---|---|---|
| 8409.91 | Other, Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines) | Other, Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines) | View 8409.91 → |
Official Primary Sources & Authority References
USITC HTS Database ↗
USITC official Harmonized Tariff Schedule for Oil Drain Plug Assemblies.
CBP CROSS Rulings ↗
CBP e-Rulings database for Oil Drain Plug Assemblies classification precedents.
WCO Nomenclature ↗
World Customs Organization international 6-digit Harmonized System standard.
Oil Drain Plug Assemblies Frequently Asked Questions (FAQ)
What is the official 6-digit HS code for Oil Drain Plug Assemblies?
The primary 6-digit Harmonized System (HS) code for Oil Drain Plug Assemblies is HS 8409.91 (Other, Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines)).
What is the US general import duty for Oil Drain Plug Assemblies?
Under the 2026 US HTS, representative MFN general duty rates for Oil Drain Plug Assemblies under HS 8409.91 are Free.
Are there alternative candidate subheadings for Oil Drain Plug Assemblies?
Yes. Depending on state (green vs. roasted, decaffeinated vs. non-decaffeinated, raw vs. processed), alternative subheadings include 840991.
What mandatory import documents are required for Oil Drain Plug Assemblies?
Commercial Invoice, Packing List, Bill of Lading, and Partner Government Agency permits where applicable.
Does de minimis duty-free exemption apply to Oil Drain Plug Assemblies?
Eligible shipments enter duty-free under statutory destination thresholds.
How are merchandise processing and customs fees calculated for Oil Drain Plug Assemblies?
Import fees are assessed on entered customs value under destination regulations.