OEM

NOS, genuine, OEM, OES or aftermarket: what the parts labels really mean

7 November 2026 · Parts · 3 min read

What NOS, genuine, OE, OEM, OES and aftermarket mean when you buy parts for a classic Fiat, Alfa Romeo or Lancia, and which one to choose for which job.

Read: NOS, genuine, OEM, OES or aftermarket: what the parts labels really mean