Definition
Aftermarket offerings range from cosmetic to full engine internals.
Quality varies; reputable brands provide testing and warranty support.
Automotive Wiki
General
Aftermarket
Parts and accessories produced by third-party companies rather than the vehicle maker.
Related terms
- OEMOriginal equipment manufacturer — parts made to factory specifications for a veh…
- OEM PlusA build philosophy using subtle factory-style upgrades rather than extreme custo…
- StanceA build style emphasizing aggressive wheel fitment, ride height, and visual atti…
- Sleeper BuildA high-performance vehicle with understated exterior appearance.
- Bolt-On ModA modification installable without internal engine work, such as intake or exhau…
- Full Bolt-OnA common package of intake, exhaust, headers, and tune without opening the block…
Category: General · Updated August 31, 2026