# Aftermarket part

> An aftermarket part is made by another manufacturer to replace the original part with the same dimensions and function.

- **Also known as:** Yan sanayi parça, Aftermarket, Muadil, Eşdeğer parça
- **Turkish term:** Muadil parça
- **Page:** https://motorsikletparcasi.com/en/glossary/aftermarket-part

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](https://motorsikletparcasi.com/en/glossary/oem-part) 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.

## Related terms

- [OEM part](https://motorsikletparcasi.com/en/glossary/oem-part): An OEM part is made by the motorcycle manufacturer or on its behalf and matches the part fitted at the factory.
- [VIN (vehicle identification number)](https://motorsikletparcasi.com/en/glossary/vin): The VIN (vehicle identification number) uniquely identifies a vehicle; on modern vehicles it is a standardised 17-character code.

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- Source page: https://motorsikletparcasi.com/en/glossary/aftermarket-part
- Last updated: 2026-10-09
- Türkçe sürüm: https://motorsikletparcasi.com/sozluk/muadil-parca.md
- Site overview: https://motorsikletparcasi.com/en/llms.txt
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