The Valuejet crash wasn’t caused by parts…good or bad.
A contracted maintenance outfit (IIRC) put overhauled…or in need of overhaul…emergency oxygen generating cylinders on board as cargo. One ignited causing a fire.

Yes you are certainly right, and maybe I was mixing things together with another company.
However I can remember a story about a DC9 having an engine exploding on takeoff. I think it was Valujet flight 597 on the 08 June 1995.
The engine had a doubtful origin (in the middle-east somewhere), where major maintenance had been badly made and wrong parts fitted together with large cracks not discovered.