NAICS 3363

Motor Vehicle Parts Manufacturing

Motor vehicle parts manufacturing (NAICS 3363) - learn about the US auto parts supply industry, market trends, manufacturers, and career opportunities.

Published by VantaInsights Research·Methodology·Data Sources· AI-drafted
Built on data from Census Bureau CBP Bureau of Labor Statistics Federal Reserve FRED SEC EDGAR

Industry at a Glance

Sector-wide aggregates across all businesses classified under NAICS 3363 (2017 classification frame). For specific sub-industries within this sector, see the individual reports below.

Employment
587K
US Census CBP · 2023 · NAICS 2017
Establishments
4,659
US Census CBP · 2023 · NAICS 2017
Annual Payroll
$36.3B
US Census CBP · 2023 · NAICS 2017
Avg Annual Wage
$61,894
Derived from US Census CBP · 2023 · NAICS 2017
Market Size
$278.2B
US Census Economic Census · 2022 · NAICS 2017

Industry Overview

Motor vehicle parts manufacturing (NAICS 3363) encompasses the production of components and parts used in the assembly of automobiles, trucks, and other motor vehicles. This industry includes manufacturers of engines, transmissions, electrical systems, brake systems, steering components, suspension parts, seating, and thousands of other specialized components that original equipment manufacturers (OEMs) and aftermarket suppliers depend on. As a critical segment within transportation equipment manufacturing, the motor vehicle parts industry serves as the backbone of the automotive supply chain, with operations ranging from large multinational Tier-1 suppliers that deliver complete subsystems to specialized manufacturers producing individual components. The industry is characterized by high capital investment requirements, stringent quality and safety standards, complex supply chain coordination, and continuous pressure to innovate in response to shifting consumer preferences, regulatory requirements, and technological advancement.

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Industry Trends

01

Electrification of powertrains is driving demand for new components including battery management systems, electric motor controllers, high-voltage electrical distribution systems, and thermal management systems previously unnecessary in traditional combustion vehicles.

ADAS

Increasing adoption of advanced driver assistance systems (ADAS) and autonomous vehicle technologies requires manufacturers to develop sophisticated sensors, computing hardware, communication modules, and safety-critical electronic components.

03

Supply chain regionalization and reshoring initiatives are prompting manufacturers to establish or expand domestic production capacity to reduce dependence on overseas suppliers and improve resilience against disruptions.

04

Lightweighting through alternative materials including aluminum alloys, carbon fiber composites, and advanced high-strength steel is expanding opportunities for manufacturers capable of producing components that improve fuel efficiency and electric vehicle range.

05

Rising cybersecurity requirements and software integration complexity are pushing parts manufacturers to enhance capabilities in electronics, embedded systems, and data protection to support connected and autonomous vehicle platforms.

Specialty Reports Available on Request

8 specialty industriesavailable on request
▾
Motor Vehicle Gasoline Engine & Engine Parts Manufacturing
336310View →
Motor Vehicle Electrical & Electronic Equipment Manufacturing
336320View →
Motor Vehicle Steering & Suspension Components (Except Spring) Manufacturing
336330View →
Motor Vehicle Brake System Manufacturing
336340View →
Motor Vehicle Transmission & Power Train Parts Manufacturing
336350View →
Motor Vehicle Seating & Interior Trim Manufacturing
336360View →
Motor Vehicle Metal Stamping
336370View →
Other Motor Vehicle Parts Manufacturing
336390View →

Industries

Browse deeper into the NAICS hierarchy.

336310 reports

Motor Vehicle Gasoline Engine & Engine Parts Manufacturing

336320 reports

Motor Vehicle Electrical & Electronic Equipment Manufacturing

336330 reports

Motor Vehicle Steering & Suspension Components (Except Spring) Manufacturing

336340 reports

Motor Vehicle Brake System Manufacturing

336350 reports

Motor Vehicle Transmission & Power Train Parts Manufacturing

336360 reports

Motor Vehicle Seating & Interior Trim Manufacturing

336370 reports

Motor Vehicle Metal Stamping

336390 reports

Other Motor Vehicle Parts Manufacturing

Frequently Asked Questions

What is NAICS 3363? ▾
NAICS 3363 is the industry classification for motor vehicle parts manufacturing in the United States. It includes all establishments primarily engaged in manufacturing parts and accessories for motor vehicles, such as engines, transmissions, electrical systems, and chassis components. This classification excludes complete vehicle assembly, which falls under a separate NAICS code.
What are the main categories of products manufactured in this industry? ▾
Motor vehicle parts manufacturers produce a diverse range of components organized into several categories: powertrain components (engines, transmissions, axles), electrical and electronic systems (batteries, alternators, control modules), chassis and suspension parts (brakes, steering, suspension), body components, seating and interior systems, and emission control systems. Manufacturers may specialize in one category or produce across multiple segments depending on their size, capabilities, and customer relationships.
How is the supply chain structured in this industry? ▾
The motor vehicle parts industry operates on a tiered supplier model. Tier-1 suppliers deliver complete subsystems or major assemblies directly to OEM vehicle manufacturers, Tier-2 suppliers produce components and subassemblies for Tier-1 suppliers, and lower tiers supply raw materials and specialized inputs. Additionally, the aftermarket segment includes manufacturers producing replacement parts for vehicles after they leave the factory, serving both professional mechanics and consumers.
What regulatory requirements impact motor vehicle parts manufacturers? ▾
Manufacturers must comply with extensive federal safety standards, emission regulations, fuel economy requirements, and component-specific standards established by NHTSA and EPA. Additionally, international manufacturers follow varying standards in different markets, and suppliers increasingly must meet cybersecurity requirements and data protection regulations as vehicles become more connected. Quality management systems like ISO/TS 16949 are industry standards for parts suppliers.
How is the industry responding to the shift toward electric vehicles? ▾
Parts manufacturers are investing heavily in new technologies for battery systems, electric motor components, power electronics, and thermal management. Many traditional suppliers are expanding into new product categories while others are consolidating or forming partnerships to develop EV-specific capabilities. This transition represents both significant opportunity and substantial change for the industry, particularly for manufacturers dependent on internal combustion engine components.

Related Industries

Motor Vehicle Manufacturing 3361Motor Vehicle Body & Trailer Manufacturing 3362Aerospace Product & Parts Manufacturing 3364Motor Vehicle & Motor Vehicle Parts & Supplies Merchant Wholesalers 4231Scientific Research & Development Services 5417

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