8408.90.90.30—Compression-ignition internal combustion piston engines (diesel or semi-diesel engines), other engines, exceeding 373 kW but not exceeding 746 kWGeneral
Free
Units
No.
Column 2
35%
Special
Supplier development
Tandom’s paid supplier-development service helps industrial buyers identify and evaluate alternative manufacturers, compare quotes, qualify samples, and prepare a first order. Buyers retain supplier approval and all customs and compliance decisions.
Exporting to the United States
Tandom’s Americas Desk works with manufacturers outside the United States on the commercial side of entering it: buyer research, targeted outreach, qualifying the opportunities that come back, quote support, and follow-up.
—
HTS 8408.90.90.30 is the U.S. Harmonized Tariff Schedule classification for Compression-ignition internal combustion piston engines (diesel or semi-diesel engines), other engines, exceeding 373 kW but not exceeding 746 kW. It's a 10-digit statistical line in Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof, Section XVI: Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles, used by U.S. Customs and Border Protection to determine the duty rate at entry. No Chapter 99 flags or potentially relevant AD/CVD order flags are linked to this code in Tandom's current catalog view.
New to HTS codes? Read our guide on how HTS classification works →
HTS 8408.90.90.30 is the U.S. Harmonized Tariff Schedule classification for Compression-ignition internal combustion piston engines (diesel or semi-diesel engines), other engines, exceeding 373 kW but not exceeding 746 kW. It belongs to Chapter 84 of the HTSUS.
The general (Column 1) duty rate for HTS 8408.90.90.30 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 8408.90.90.30 is 35%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Belarus, Cuba, North Korea, and Russia).
No Chapter 99 flags are linked to HTS 8408.90.90.30 in Tandom's current catalog view. Use the calculator's date, origin, and product inputs to check a specific entry scenario.
Tandom's current catalog view links no potentially relevant AD/CVD order flags to HTS 8408.90.90.30. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.
Tandom guides relevant to this code
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
Open resource
Run thousands of product descriptions through HTS classification, score the confidence, and triage borderline rows. Public search endpoint plus the closed-beta three-layer Classifier.
Open resource
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
Open resource
Why raw LLM prompts fabricate stat suffixes, why MCP-augmented prompts do not, and the prompt template a broker can hand to Claude or ChatGPT today.
Open resource
What changed for low-value DTC and ecommerce shipments after Section 321 de minimis was suspended in 2025. Filing, fees, and duty math through 2027.
Open resource
Turn a PDF commercial invoice into ACE-ready entry data. Which fields to extract, how to chain extraction into HTS classification and duty calculation.
Open resource