Key facts
E-commerce auto parts sales grew more than six times faster than the rest of the light-vehicle aftermarket between 2016 and 2024, Lang Marketing reported.
Online auto parts sales have surged nearly fourfold since 2016, according to a new Lang Marketing report cited by autoserviceworld.com [1] on October 24, 2025. Between 2016 and 2024, e-commerce auto parts sales grew at a rate more than six times faster than the total light vehicle aftermarket.
The pandemic split the two curves apart. In 2020, overall aftermarket product sales fell nearly 10 percent. E-commerce auto parts volume jumped almost 40 percent the same year. The surge ran through 2023 as the aftermarket rebounded and added $19 billion in sales at user price, before growth slowed in 2024 to what autoserviceworld.com called "a more typical pace."
Lang Marketing estimated the U.S. light vehicle aftermarket reached more than $257 billion at user price in 2024. The analysis covers tires, wheels, accessories, collision parts and other products. By that measure, e-commerce "captured a much larger share of the market than before the pandemic," nearly triple its 2016 share.
What it means at the parts counter
The trade didn't simply move online. It split into three lanes that grew at different speeds. DIY sales accounted for the largest share of e-commerce growth over the past eight years, though their share has since declined. B2B transactions generated a one-third larger share of growth than their 2024 market share. Online-to-offline sales, where parts are bought online and installed at a shop, recorded rapid gains.
The report also flags a change a buyer can check on the listing itself: first-party (1P) sales, where a platform owns the inventory, now compete with third-party (3P) sellers such as manufacturers and distributors on marketplaces like Amazon and eBay, and with a hybrid second-party (2P) model where the platform handles the sale without owning stock. Unlike a phone call to one distributor, a price check on a marketplace now spans all three models for the same part number.
For a shop pricing a replacement unit, the practical move is to compare the same part across at least one 1P listing and one 3P seller before quoting the job. The report's numbers say the gap between those channels is where the market is still moving.
The number
$257 billion. That is the U.S. light vehicle aftermarket at user price in 2024, as estimated by Lang Marketing, measured across tires, wheels, accessories, collision parts and other products, in the United States. E-commerce nearly tripled its share of that market compared to 2016, the report found.
FAQ
How fast did online auto parts sales grow since 2016? Nearly fourfold between 2016 and 2024, a rate more than six times faster than the total light vehicle aftermarket, according to a Lang Marketing report cited by autoserviceworld.com.
What happened to online parts sales in 2020? While overall aftermarket product sales fell nearly 10 percent in 2020, e-commerce auto parts volume jumped almost 40 percent, the report found.
How big is the US light vehicle aftermarket? Lang Marketing estimated the US light vehicle aftermarket reached more than $257 billion at user price in 2024, with e-commerce nearly tripling its share compared to 2016.
Lang Marketing said it expects e-commerce to remain a major growth driver for the U.S. aftermarket even as overall market expansion slows. When B2B volume passes DIY, or whether it does at all, the report does not project; Lang Marketing has not published that answer.
Reported with AI assistance from public sources; reviewed before publication.
Sources
1. autoserviceworld.com — "Online auto parts sales soar as aftermarket shifts to digital - Auto Service World". https://www.autoserviceworld.com/online-auto-parts-sales-soar-as-aftermarket-shifts-to-digital/ (captured by the desk 2026-09-26; read in full)
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Reported with AI assistance from public sources; reviewed before publication. — Powered by Creytix.