Motorcycle Glossary
Aftermarket part
In Turkish: Muadil parça
In short
An aftermarket part is made by another manufacturer to replace the original part with the same dimensions and function.
Aftermarket parts are usually cheaper; quality varies widely between manufacturers. Established aftermarket brands offer parts that equal the original or are performance-oriented.
- Check fitment against the OEM part number and model year.
- For safety parts such as brakes, tyres and lighting, look for approval (homologation) marks.
- For critical engine parts (cam chain, crankshaft, valves), choose well-known brands.
Also known as (including Turkish names)
- Yan sanayi parça
- Aftermarket
- Muadil
- Eşdeğer parça
Last updated: October 9, 2026