Dave Parker -- a 19-year MLB veteran who was voted into Cooperstown just months ago -- has died ... according to the league office.
MLB announced the news Saturday afternoon ... saying Parker passed away after a long bout with Parkinson's disease.
Parker -- who played for the Pirates in 11 of his 19 total seasons in the league -- was honored with a scoreboard tribute at PNC Park, where the Pirates are taking on the New York Mets.