United States Aftermarket Automotive Parts And Components Market Size and Share

United States Aftermarket Automotive Parts And Components Market Summary
Image © Mordor Intelligence. Reuse requires attribution under CC BY 4.0.

United States Aftermarket Automotive Parts And Components Market Analysis by Mordor Intelligence

The United States aftermarket automotive parts and components market reached USD 229.31 billion in 2025 and is forecast to climb to USD 283.45 billion by 2030, reflecting a 4.33% CAGR during the forecast period. A longer average vehicle age, strong light-truck sales, and rapid e-commerce uptake underpin this expansion. Elevated new-vehicle prices, wider right-to-repair statutes, and post-pandemic driving recovery stimulate replacement demand, while emerging electrified retrofit kits carve out premium specialty niches. Competitive intensity varies by component category, yet suppliers that pair omnichannel distribution with electronics expertise are positioning for durable growth. Regulatory initiatives, from EPA emissions rules to state EV mandates, act as simultaneous headwinds and tailwinds, reshaping the aftermarket automotive parts market through shifting compliance requirements.

Key Report Takeaways

  • By vehicle type, passenger cars held 53.23% of the United States aftermarket automotive parts and components market share in 2024, whereas light commercial vehicles are projected to expand at a 7.28% CAGR through 2030.
  • By component, engine parts commanded 31.82% the United States aftermarket automotive parts and components market size in 2024, while advanced ADAS sensors posted the fastest 7.81% CAGR during the forecast period.
  • By sales channel, offline distribution retained 78.81% of the United States aftermarket automotive parts and components market share in 2024, yet online platforms are advancing at a 9.21% CAGR by 2030.
  • By propulsion, internal-combustion vehicles accounted for 87.38% of the United States aftermarket automotive parts and components market share in 2024; battery electric segments are growing at a 7.42% CAGR through 2030.
  • By service channel, DIFM independent garages captured a 56.82% of the United States aftermarket automotive parts and components market share in 2024, and online DIY activity is rising at a 7.85% CAGR during the forecast period (2025-2030).

Segment Analysis

By Vehicle Type: Commercial Demand Outpaces Passenger-Car Growth

Passenger cars accounted for 53.23% of the United States Aftermarket Automotive Parts and Components Market overall revenue in 2024, anchored through an expansive installed base. Nevertheless, commercial light trucks are projected to post a 7.28% CAGR, elevating their contribution to the aftermarket automotive parts market size as parcel delivery and service fleets log higher daily mileage. Combining intensive duty cycles and stringent uptime requirements lifts replacement frequency for brake assemblies, driveline joints, and cooling components. Fleet operators’ procurement practices favor suppliers that guarantee rapid availability and streamlined warranty processes, nudging parts makers toward depot-level inventory and predictive fulfillment systems.

Medium and heavy trucks yield outsized monetary value, while smaller in volume, because individual components carry higher price tags and downtime penalties. EPA 2027 emissions rules motivate prebuy activity and aftermarket retrofits of selective catalytic reduction and particulate filters, temporarily boosting heavy-duty demand. Buses and coaches, newly segmented in the forecast, open ancillary potential for specialist providers of high-capacity thermal-management and suspension products. Passenger-car segments remain relevant but confront a plateauing unit base as households question the need for multiple vehicles in the era of hybrid work, whereas fleet vehicles appear locked into growth trajectories tied to logistics expansion.

United States Aftermarket Automotive Parts And Components Market: Market Share by Vehicle Type
Image © Mordor Intelligence. Reuse requires attribution under CC BY 4.0.

Note: Segment shares of all individual segments available upon report purchase

Get Detailed Market Forecasts at the Most Granular Levels
Download PDF

By Component Type: Electronics Reshape Core Categories

Engine components retained 31.82% of the United States Aftermarket Automotive Parts and Components Market in 2024, mirroring the still-dominant ICE parc. Yet ADAS sensors are forecast for a 7.81% CAGR, signaling the pivot from mechanical to electronic value. Camera modules, radar units, and control ECUs often fail in minor collisions or succumb to environmental contaminants, creating high-margin replacement cycles. Continental’s 2024 launch of 700 new engine-management SKUs illustrates suppliers’ dual strategy of defending mechanical strongholds while scaling electronics portfolios.

Suspension, brake, and tire categories see ongoing lift from the trend toward heavier SUVs and pickups. Electrical and infotainment sub-segments increase as drivers seek connectivity upgrades and over-the-air functionality, blurring the line between aftermarket hardware and software services. Body and exterior parts face mixed fortunes: ADAS reduces collision frequency, yet personalization culture and regional climate damage sustain baseline demand. Tools, diagnostics, and shop consumables are expanding as independent garages gear up to service complex, software-driven vehicle systems.

By Sales Channel: Digital Surge Reshapes Distribution

Offline wholesalers and jobbers preserved 78.81% the United States Aftermarket Automotive Parts and Components Market size in 2024, underscoring entrenched installer relationships in a market where professional labor remains indispensable for complex repairs. That said, the online segment exhibits a 9.21% CAGR—the strongest across the value chain—as price-sensitive DIYers and tech-enabled garages turn to e-retailers for rapid parts sourcing. Marketplace algorithms surface long-tail SKUs once restricted to specialty catalogs, aiding parts retrieval for discontinued models and niche performance builds.

Hybrid omnichannel strategies are emerging, with brick-and-mortar distributors offering click-and-collect and same-day courier services to retain professional customers. Pure-play e-commerce entities deploy fitment-verification AI to cut return rates and win consumer confidence. Counterfeit threats remain acute online, so platforms integrating authenticity blocks and serialized packaging gain reputational advantages. As fulfillment speed parity narrows between channels, comprehensive product data and installation support become differentiators in unit conversion.

By Propulsion Type: ICE Still Dominant Amid Gradual Electrification

Internal-combustion vehicles represented 87.38% of the United States Aftermarket Automotive Parts and Components Market size in 2024, ensuring a long runway for traditional components such as timing belts, oil filters, and exhaust systems. Nevertheless, battery electric vehicles exhibit a 7.42% CAGR, introducing fresh demand for thermal-management loops, specialized brake pads, and cabin filters tuned for low-noise interiors. Hybrid platforms blend both worlds, creating dual parts pathways—conventional replacements and high-voltage systems—complicating inventory planning.

Regulatory accelerants such as California’s Advanced Clean Cars II mandate push OEMs toward EV rollouts, but regional variation slows nationwide component displacement. Suppliers hedging against ICE decline are investing in silicone-based fluid technologies and compact power electronics, areas forecast to mature rapidly. Fuel-cell vehicles remain nascent, but heavy-duty pilot programs could unlock aftermarket needs for hydrogen tanks and compressor components later in the decade.

United States Aftermarket Automotive Parts And Components Market: Market Share by Propulsion Type
Image © Mordor Intelligence. Reuse requires attribution under CC BY 4.0.

Note: Segment shares of all individual segments available upon report purchase

Get Detailed Market Forecasts at the Most Granular Levels
Download PDF

By Service Channel: Professional Installation Retains Primacy

DIFM independent garages held 56.82% of the United States Aftermarket Automotive Parts and Components Market size in 2024, benefiting from rising vehicle complexity that discourages driveway repairs. These shops leverage advanced scan tools and subscription-based diagnostic software to service aging ICE engines and next-gen sensor suites. Though the smallest segment, online DIY is expanding at a 7.85% CAGR as video tutorials and direct-ship parts lower entry barriers for competent enthusiasts.

Fleet maintenance networks pursue predictive analytics, scheduling component swaps ahead of failure to avoid costly downtime—a model driving steady parts throughput in commercial channels. Traditional DIY retail faces overlap from e-commerce but retains value through immediate product access, especially during emergency breakdowns. Training investments in high-voltage safety and ADAS calibration are becoming baseline requirements across professional channels, subtly shifting labor mix toward higher-skill positions.

Geography Analysis

Harsh winter climates in the Northeast and Midwest accelerate corrosion, lifting demand for chassis, brake, and under-body components at a pace that exceeds the national aftermarket automotive parts market size growth rate. Road salt exposure shortens replacement intervals for suspension arms and exhaust systems, making these regions prime territories for rust-resistant product lines. California remains the bellwether for EV-specific parts and retrofit solutions, spawning clusters of specialty installers focused on battery diagnostics and conversion kits.

The Southeast combines population growth with favorable economic conditions, fueling steady unit expansion in the aftermarket automotive parts market. Warm climates reduce corrosion but heighten cooling-system stress, leading to elevated radiator and condenser turnover. Mountain West states showcase strong demand for off-road accessories, with altitude and rugged terrain driving interest in heavy-duty suspension kits and performance air-intake upgrades. Texas stands out as a distribution powerhouse, serving both urban hubs and rural oil-field fleets, and its light-truck orientation amplifies parts revenue per vehicle.

Urban-rural splits persist: metropolitan areas rely on same-day logistics and expanded SKU assortments, whereas rural dealers prioritize reliability and broader coverage of multipurpose components. Proximity to OEM assembly plants in the Midwest offers freight advantages for some distributors. Federal safety and emissions rules create baseline uniformity, yet patchwork state regulations—particularly on data access and emissions—result in regional differentiation that suppliers must navigate.

Competitive Landscape

Market fragmentation remains pronounced in commodity categories such as filters and fluids, where private-label penetration is rising. In contrast, electronics and ADAS parts show increasing concentration as certification hurdles favor scale players. Strategic acquisitions, Standard Motor Products’ purchases of Nissens Automotive and Stabil Group, for example, signal a pivot toward thermal-management and sensor capabilities that support future vehicle architectures[3]“Investor Presentation Q3 2025,”, Standard Motor Products, smpcorp.com.

Recent moves by RealTruck and others, seeking closer consumer contact and higher blended margins, have been characterized by vertical integration into distribution and e-commerce channels. Technology investments, including predictive demand algorithms and AI-driven fitment tools, differentiate top-tier suppliers from lower-capex rivals. White-space pockets exist around EV-specific consumables and connected-vehicle data services, but incumbents must balance capital allocation between emerging segments and legacy cash generators.

Regulatory compliance expertise—spanning EPA emissions standards, cybersecurity protocols, and battery shipment regulations—is becoming a competitive moat. Firms adept at navigating this complexity are forging preferred-supplier agreements with fleets and national repair chains. Yet headwinds persist: raw-material price volatility and skilled-labor shortages inflate cost structures, making operational efficiency gains and supply-chain resilience critical to sustaining profitability across the aftermarket automotive parts industry.

United States Aftermarket Automotive Parts And Components Industry Leaders

  1. AutoZone Inc.

  2. Advance Auto Parts Inc.

  3. O’Reilly Automotive Inc.

  4. Genuine Parts Co. (NAPA)

  5. LKQ Corporation

  6. *Disclaimer: Major Players sorted in no particular order
United States Aftermarket Automotive Parts And Components Market Concentration
Image © Mordor Intelligence. Reuse requires attribution under CC BY 4.0.
Need More Details on Market Players and Competitors?
Download PDF

Recent Industry Developments

  • June 2025: PHINIA Inc. made a significant strategic move by acquiring Electromagnet Invest AB for an impressive USD 47 million. This bold investment not only strengthens PHINIA's portfolio but also enhances its capabilities in the realm of electromagnetic components, paving the way for innovative advancements and expanded market reach.
  • November 2024: Standard Motor Products acquired Nissens Automotive for a remarkable USD 390 million, significantly expanding its offerings in the realm of thermal-management products. This strategic move not only amplifies their product line but also strengthens their position in the competitive automotive industry, where cutting-edge temperature control solutions are essential.

Table of Contents for United States Aftermarket Automotive Parts And Components Industry Report

1. Introduction

  • 1.1 Study Assumptions & Market Definition
  • 1.2 Scope of the Study

2. Research Methodology

3. Executive Summary

4. Market Landscape

  • 4.1 Market Overview
  • 4.2 Market Drivers
    • 4.2.1 Aging Light-Vehicle Parc Drives Replacement Demand.
    • 4.2.2 Shift To Larger SUVs and Pickups Raises Wear-Part Revenues.
    • 4.2.3 E-Commerce Penetration Accelerates Long-Tail SKU Availability.
    • 4.2.4 Electrified Retrofit Kits Open High-Margin Specialty Niches.
    • 4.2.5 Right-To-Repair Statutes Widen Independent Aftermarket Access.
    • 4.2.6 Post-Pandemic Rebound In Vehicle-Miles-Traveled Lifts Service Frequency
  • 4.3 Market Restraints
    • 4.3.1 EVs Contain 30-40 % Fewer Moving Parts.
    • 4.3.2 ADAS Lowers Collision-Part Volumes
    • 4.3.3 OE Service-As-Software Subscriptions Cannibalize Hardware Sales.
    • 4.3.4 Counterfeit Inflow Via Cross-Border E-Commerce Erodes Brand Share.
  • 4.4 Value / Supply-Chain Analysis
  • 4.5 Regulatory Landscape
  • 4.6 Technological Outlook
  • 4.7 Porter's Five Forces
    • 4.7.1 Threat of New Entrants
    • 4.7.2 Bargaining Power of Buyers/Consumers
    • 4.7.3 Bargaining Power of Suppliers
    • 4.7.4 Threat of Substitute Products
    • 4.7.5 Intensity of Competitive Rivalry

5. Market Size & Growth Forecasts (Value, USD)

  • 5.1 By Vehicle Type
    • 5.1.1 Passenger Cars
    • 5.1.2 Light Commercial Vehicles (Class 1-3)
    • 5.1.3 Medium & Heavy Trucks (Class 4-8)
    • 5.1.4 Buses & Coaches (NEW)
  • 5.2 By Component Type
    • 5.2.1 Engine Components (filters, gaskets, pistons)
    • 5.2.2 Transmission & Driveline
    • 5.2.3 Electrical & Electronics (sensors, alternators, ADAS)
    • 5.2.4 Suspension & Brakes
    • 5.2.5 Body & Exterior (bumpers, lighting)
    • 5.2.6 Tires
    • 5.2.7 Interior & Accessories
    • 5.2.8 Fluids & Lubricants
    • 5.2.9 Others (Seat and Covers, etc.)
  • 5.3 By Sales Channel
    • 5.3.1 Online
    • 5.3.2 Offline
  • 5.4 By Propulsion Type
    • 5.4.1 Internal-Combustion Engine (ICE) Vehicles
    • 5.4.2 Hybrid Electric Vehicles (HEV)
    • 5.4.3 Battery Electric Vehicles (BEV)
    • 5.4.4 Plug-in Hybrid Electric Vehicles (PHEV)
    • 5.4.5 Fuel-Cell Electric Vehicles (FCEV)
  • 5.5 By Service Channel
    • 5.5.1 DIY (Do-It-Yourself)
    • 5.5.2 DIFM Independent Garages
    • 5.5.3 Fleet / Commercial Service Providers

6. Competitive Landscape

  • 6.1 Market Concentration
  • 6.2 Strategic Moves
  • 6.3 Market Share Analysis
  • 6.4 Company Profiles (Includes Global-level Overview, Market-level Overview, Core Segments, Financials, Strategic Information, Market Rank/Share, Products & Services, Recent Developments)
    • 6.4.1 Magna International Inc.
    • 6.4.2 Continental AG
    • 6.4.3 ZF Friedrichshafen AG
    • 6.4.4 DENSO Corporation
    • 6.4.5 Robert Bosch GmbH
    • 6.4.6 Lear Corporation
    • 6.4.7 Flex-N-Gate Corporation
    • 6.4.8 Panasonic Automotive Systems Co. of America
    • 6.4.9 Aisin World Corp. of America
    • 6.4.10 American Axle & Manufacturing
    • 6.4.11 Yazaki North America
    • 6.4.12 Adient PLC
    • 6.4.13 Faurecia SE
    • 6.4.14 Aptiv PLC
    • 6.4.15 LKQ Corporation
    • 6.4.16 Advance Auto Parts Inc.
    • 6.4.17 O'Reilly Automotive Inc.
    • 6.4.18 AutoZone Inc.
    • 6.4.19 Genuine Parts Co. (NAPA)
    • 6.4.20 Tenneco Inc.
    • 6.4.21 Dana Incorporated
    • 6.4.22 BorgWarner Inc.
    • 6.4.23 Goodyear Tire & Rubber Co.

7. Market Opportunities & Future Outlook

You Can Purchase Parts Of This Report. Check Out Prices For Specific Sections
Get Price Break-up Now

United States Aftermarket Automotive Parts And Components Market Report Scope

The automotive aftermarket is the automotive industry's secondary market, dealing with the manufacturing, remanufacturing, distribution, retailing, and assembly of all vehicle parts, chemicals, equipment, and accessories following the sale of the automobile to the consumer by the original equipment manufacturer (OEM). The OEM may or may not manufacture the parts, accessories, and so on for sale.

The United States Aftermarket Automotive Parts & Components Market has been segmented based on Vehicle Type (Passenger Vehicles and Commercial Vehicles), Application (Engine Components, Transmission, Interior, Exterior, and Other Applications), and Sales Channel (Online and Offline). The report offers market size and forecasts for the United States aftermarket automotive parts and components market in value (USD billion) for all the above segments.

By Vehicle Type
Passenger Cars
Light Commercial Vehicles (Class 1-3)
Medium & Heavy Trucks (Class 4-8)
Buses & Coaches (NEW)
By Component Type
Engine Components (filters, gaskets, pistons)
Transmission & Driveline
Electrical & Electronics (sensors, alternators, ADAS)
Suspension & Brakes
Body & Exterior (bumpers, lighting)
Tires
Interior & Accessories
Fluids & Lubricants
Others (Seat and Covers, etc.)
By Sales Channel
Online
Offline
By Propulsion Type
Internal-Combustion Engine (ICE) Vehicles
Hybrid Electric Vehicles (HEV)
Battery Electric Vehicles (BEV)
Plug-in Hybrid Electric Vehicles (PHEV)
Fuel-Cell Electric Vehicles (FCEV)
By Service Channel
DIY (Do-It-Yourself)
DIFM Independent Garages
Fleet / Commercial Service Providers
By Vehicle Type Passenger Cars
Light Commercial Vehicles (Class 1-3)
Medium & Heavy Trucks (Class 4-8)
Buses & Coaches (NEW)
By Component Type Engine Components (filters, gaskets, pistons)
Transmission & Driveline
Electrical & Electronics (sensors, alternators, ADAS)
Suspension & Brakes
Body & Exterior (bumpers, lighting)
Tires
Interior & Accessories
Fluids & Lubricants
Others (Seat and Covers, etc.)
By Sales Channel Online
Offline
By Propulsion Type Internal-Combustion Engine (ICE) Vehicles
Hybrid Electric Vehicles (HEV)
Battery Electric Vehicles (BEV)
Plug-in Hybrid Electric Vehicles (PHEV)
Fuel-Cell Electric Vehicles (FCEV)
By Service Channel DIY (Do-It-Yourself)
DIFM Independent Garages
Fleet / Commercial Service Providers
Need A Different Region or Segment?
Customize Now

Key Questions Answered in the Report

How big is the aftermarket automotive parts market in 2025?

It reached USD 229.31 billion in 2025.

Which vehicle category is growing fastest in U.S. parts demand?

Light commercial vehicles are the fastest, with a 7.28% CAGR forecast through 2030.

What component segment shows the highest growth rate?

Advanced ADAS sensors lead with a 7.81% CAGR, reflecting rising safety-technology penetration.

How will electrification impact replacement-part demand?

EVs feature 30–40% fewer moving parts, trimming traditional hardware demand but creating new needs in thermal-management and electronics.

Do right-to-repair laws benefit independent garages?

Yes, expanded data access is expected to steer more out-of-warranty repairs to independent shops, reinforcing their 56.82% market share.

Page last updated on:

United States Aftermarket Automotive Parts And Components Market Report Snapshots