The global aftermarket automotive parts market is projected to reach USD 502.61 billion in 2025 and is expected to grow to USD 756.25 billion by 2032, with a compound annual growth rate (CAGR) of 6.0% during that period. Engine components are anticipated to be the top-selling product type, accounting for 27.4% of market revenue by 2025, while the passenger cars segment is expected to hold nearly three-fifths of the market share. The offline sales channel is projected to dominate the market, capturing 65.2% market share in 2025. North America is forecasted to lead the global market with a 37.6% share in 2025, while Asia Pacific is expected to be the most lucrative market. The growth of the aftermarket automotive parts market is attributed to the aging vehicle fleet, with the average age of vehicles in the US reaching 12.6 years in 2024. This trend increases the demand for replacement parts, such as brakes, batteries, filters, and suspension components. However, the market growth may be limited by the preference for OEM products and competition from OEMs.