HTS Chapter 84 — Machinery Tariff Rates (2026)

Covers nuclear reactors, boilers, turbines, engines, pumps, compressors, air conditioning, computers, and a wide range of industrial and office machinery.

Rate Overview

Avg MFN Rate

10%

Section 122

N/A

Section 232

7.5-100%

Section 301 (China)

Key Headings in Chapter 84

HTS Code	Description	MFN Rate	Sec 232	Sec 301
8401	Nuclear reactors and fuel elements	Free	N/A	N/A
8402	Steam or vapor generating boilers	Free	N/A	25%
8407	Spark-ignition engines	2.5%	N/A	25%
8408	Compression-ignition engines (diesel)	Free	N/A	25%
8409	Parts for internal combustion engines	2.5%	N/A	25%
8411	Turbojets, turboprops, and gas turbines	Free	N/A	N/A
8413	Pumps for liquids	Free	N/A	25%
8414	Air and vacuum pumps, compressors, fans	Free	N/A	25%
8415	Air conditioning machines	2.2%	N/A	25%
8418	Refrigerators, freezers, and heat pumps	Free	N/A	25%
8419	Machinery for treatment of materials by temperature change	Free	N/A	25%
8421	Centrifuges and filtering machinery	Free	N/A	25%
8422	Dishwashing and packaging machinery	Free	N/A	25%
8424	Mechanical spraying appliances	Free	N/A	25%
8425	Pulleys, winches, and jacks	Free	N/A	25%
8427	Fork-lift trucks and works trucks	Free	N/A	25%
8429	Bulldozers, graders, excavators	Free	N/A	25%
8431	Parts for construction and mining machinery	Free	N/A	25%
8432	Agricultural machinery for soil preparation	Free	N/A	N/A
8433	Harvesting and threshing machinery	Free	N/A	N/A

Common Products

Computers and laptopsTurbinesPumps and compressorsAir conditionersRefrigeratorsWashing machinesExcavators3D printersBall bearingsValves

Chapter 84 of the HTS — Machinery — is among the most tariff-impacted categories in US trade. Covers nuclear reactors, boilers, turbines, engines, pumps, compressors, air conditioning, computers, and a wide range of industrial and office machinery. The average MFN (Most Favored Nation) duty rate for products in this chapter is 2%. Individual rates vary significantly within the chapter, ranging from duty-free to well above the average. In addition to MFN rates, all imports face the 10% Section 122 tariff (effective February 24, 2026, expiring approximately July 24, 2026). Chinese imports in this chapter face additional Section 301 tariffs ranging from 7.5% to 100%, depending on the specific product classification. Common products in this chapter include Computers and laptops, Turbines, Pumps and compressors, Air conditioners, Refrigerators, Washing machines, Excavators, 3D printers, Ball bearings, Valves. Related HTS chapters include Chapter 85, Chapter 87, Chapter 90, which cover similar or complementary product categories.

Frequently Asked Questions

What is the average tariff rate for HTS Chapter 84 (Machinery)?

The average MFN duty rate for machinery is 2%. All imports also face the 10% Section 122 tariff. Chinese imports may face additional Section 301 tariffs.

What products are in HTS Chapter 84?

Chapter 84 covers machinery, including Computers and laptops, Turbines, Pumps and compressors, Air conditioners, Refrigerators. Related chapters include Chapter 85, Chapter 87, Chapter 90.

Are machinery subject to Section 232 or Section 301 tariffs?

Section 232 tariffs generally do not apply to products in this chapter. Chinese imports in this chapter face Section 301 tariffs of 7.5-100%.