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  1. Home
  2. /Import Guides
  3. /Engines

Import Guide

How to import engines to Mexico

Electric and industrial engines have NOM energy efficiency requirements. Learn the requirements for importing engines.

Related tariff chapters

Chapter 84

Internal combustion engines

8407.34.998408.20.01

Chapter 85

Electric motors

8501.52.018501.53.01

Required documents

  • Import declaration
  • Commercial invoice
  • NOM energy efficiency certificate
  • Technical specifications
  • Certificate of origin

Applicable regulations

  • NOM-016-ENER — Electric motor energy efficiency
  • NOM-042-SEMARNAT — Emissions (combustion engines)
  • NOM-001-SEDE — Electrical installations

Step-by-step import process

1

Identify engine type

Determine if electric or combustion; regulations differ significantly.

2

NOM certification

Electric motors require NOM-016-ENER. Combustion engines may need emission NOM.

3

Tariff classification

Classify by type (electric/combustion), power, and application.

4

Prepare technical documentation

Power, voltage, efficiency, and application specifications.

5

Customs verification

NOM certificate and declared specifications verification.

6

Customs clearance

Pay applicable duties and taxes.

Common duty rates

Tariffs: electric motors 5-10%, combustion engines 5-15%. Under USMCA: 0%. IMMEX: duty-free temporary import.

Tips and recommendations

NOM energy efficiency is mandatory for electric motors

Used engines may require additional verification

Vehicle engines are classified differently from industrial ones

Consider IMMEX for manufacturing

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Frequently asked questions