The average vehicle on American roads reached 12.6 years, the highest age ever recorded. High new-vehicle interest rates, around 7.6%, and even higher used-vehicle rates, near 11.4%, reported by Specialty Equipment Market Association (SEMA), make new purchases unaffordable for many. Consumers are thus forced to extend their current cars' lifespans.

This financial pressure creates a tension in the automotive sector. While high interest rates and economic uncertainty suppress new car sales, they simultaneously fuel significant growth in the automotive service and aftermarket industry. The market is poised for sustained expansion, benefiting businesses focused on vehicle longevity and maintenance, as consumers prioritize repair over replacement.

The total number of vehicles operating in the US exceeded 295 million in 2023, according to SEMA. This expanding fleet, combined with the record average age, means Americans must invest heavily in maintaining their current vehicles. Adding to this dynamic, light trucks and CUVs constituted over 80% of new vehicle sales in the US in 2023, also reported by SEMA. This trend implies a future wave of demand for different aftermarket parts and services as these larger vehicles age into the maintenance cycle.

The Global and US Aftermarket Boom: Quantifying the Shift

  • USD 443.12 billion — The global automotive aftermarket size in 2025, projected to grow to USD 604.57 billion by 2034, according to Fortune Business Insights.
  • 3.56% — The Compound Annual Growth Rate (CAGR) projected for the automotive aftermarket during the forecast period of 2026-2034, according to Fortune Business Insights.
  • USD 773.93 billion — The estimated value of the Automotive Service Market in 2024, according to marketresearchfuture.
  • USD 52.65 billion — Automotive aftermarket industry sales, with expected annual growth settling into a 3%-4% pace, according to Specialty Equipment Market Association (SEMA).
  • 31.04% — North America's market share in the automotive aftermarket in 2025, according to Fortune Business Insights.

These figures, despite varying definitional scopes among sources, confirm a robust and growing industry. Consistent expansion across global and North American aftermarket segments confirms the economic importance of maintaining existing vehicles, a direct consequence of the shift towards vehicle longevity and increased service demand.