NAICS 336320

Overview

The North American Industry Classification System (NAICS) is the governmentwide standard for grouping business establishments so agencies can collect, analyze, and publish statistics on the U.S. economy. Developed under the Office of Management and Budget and adopted in 1997 to replace the SIC system, NAICS is maintained jointly with Statistics Canada and Mexico’s INEGI; the current U.S. vintage is 2022. ¹

NAICS 336320 — Motor Vehicle Electrical and Electronic Equipment Manufacturing — covers establishments primarily engaged in manufacturing and/or rebuilding electrical and electronic equipment for motor vehicles and internal combustion engines. Products may be for automobiles and trucks as well as other transport equipment (e.g., aircraft, rail, marine) or stationary engine applications. Examples include alternators, ignition components, wiring harnesses for ignition, vehicular lighting fixtures, and automotive instrument/control modules. ²

See also on G2X:

• G2X — NAICS 336320 overview
• G2X — NAICS 335910 Battery Manufacturing
• G2X — PSC 2920 Engine Electrical System Components, Nonaircraft

What this NAICS covers

• Vehicular lighting fixtures (headlamps, signal/marker lighting) for road vehicles. ²
• Alternators and generators for internal combustion engines. ²
• Ignition system components (coils, distributors, spark plugs, ignition cable sets). ²
• Motor-vehicle instrument/control panels assembled from purchased gauges and electronics. ²
• Ignition wiring harnesses and related electrical assemblies. ²
• Electronic control modules/chips for motor vehicle systems. ²
• Windshield washer pumps and similar vehicular electrical accessories. ²

Related NAICS and PSC codes

Scope notes and exclusions

• Automotive lamps/bulbs are classified in Electric Lamp Bulb and Other Lighting Equipment Manufacturing, not in 336320. ²
• Batteries are classified in Battery Manufacturing 335910; battery production is excluded from 336320. ²
• Electric motors for motor vehicles (including EV traction motors) are classified in Electrical Equipment Manufacturing, not in 336320. ²
• Railway traffic control signals and passenger car alarms are classified in Other Communications Equipment Manufacturing. ²
• Automobile audio/video equipment (e.g., car stereos) is classified in Audio and Video Equipment Manufacturing. ²

Small business size standard (SBA)

For NAICS 336320, SBA’s small business size standard is 1,000 employees (effective March 17, 2023). This employee-based threshold governs eligibility for set-aside competitions and other small business programs when this NAICS is assigned to a federal procurement. ⁴

Frequently asked questions

• What products are typical under NAICS 336320?

  The 2022 NAICS Manual cites alternators, ignition coils and distributors, spark plugs, ignition wiring sets, vehicular lighting fixtures, instrument/control panels, and windshield washer pumps, among others. Electronic control modules for vehicles are also within scope. ²

• How is 336320 different from Battery Manufacturing 335910?

  NAICS 336320 covers electrical/electronic equipment for vehicles and engines; manufacturing the batteries themselves is classified in 335910. For battery end items, PSCs 6140 (rechargeable) and 6135 (nonrechargeable) define applicable categories. ⁵

• Does 336320 include components for electric vehicles?

  Yes for many vehicle electrical/electronic components (lighting, wiring, control modules); however, manufacturing electric traction motors is classified under Electrical Equipment Manufacturing rather than 336320. ²

• What is the SBA small business size standard for 336320?

  SBA sets the size standard at 1,000 employees for this code. Agencies use this threshold when applying small business rules to solicitations that designate NAICS 336320. ⁴

• How do NAICS and PSC codes work together on solicitations?

  NAICS identifies the industry for size standards and reporting, while PSC identifies the product or service being purchased. For example, a buy coded NAICS 336320 for vehicle alternators may carry PSC 2920 to describe the product category. ⁵

Useful resources

• 2022 NAICS Manual — 336320 industry description and examples. ²
• SBA Table of Small Business Size Standards (effective March 17, 2023). ⁴
• NAICS main page (history, 2022 structure, reference files). ¹
• PSC Manual (current edition; product/service code definitions). ⁵

References

1. U.S. Census Bureau — NAICS main page and 2022 NAICS resources: https://www.census.gov/naics/
2. 2022 NAICS Manual (PDF) — official definition, examples, and cross-references for 336320: https://www.census.gov/naics/reference_files_tools/2022_NAICS_Manual.pdf
3. Acquisition.gov — PGI 208.7006 tables listing PSC titles including 2920 Engine Electrical System Components, Nonaircraft: https://www.acquisition.gov/node/55759/printable/print
4. SBA Table of Small Business Size Standards (PDF), effective March 17, 2023 — includes NAICS 336320 = 1,000 employees: https://www.sba.gov/sites/default/files/2023-06/Table%20of%20Size%20Standards_Effective%20March%2017%2C%202023%20%282%29.pdf
5. Product and Service Codes (PSC) Manual — current edition (PDF) with PSC definitions: https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf