So much for the Core Four.

Andy Pettitte hung ’em up yester day after a 16-season run — 13 with the New York Yankees.

Along with Derek Jeter, Jorge Posada and Mariano Rivera, Pettitte came up through the Yankee organization and helped form the foundation of the team’s mid-’90s renaissance.

He earned five World Series rings, a 240-138 career record and holds the mark for most postseason victories — 19 — of any pitcher.

In an era when vulgarity too often prospers, Pettitte consistently proved that class always counts.

He sparkled on the mound, but his personal integrity and quiet dignity helped him confront the performance-enhancing drug scandal far better than many other implicated athletes.

No one ever doubted that family came first for Pettitte, and ultimately it was devotion to his family that was the deciding factor in his decision to pack it in.

The desire to play one more year for the pitching-strapped Yankees was still there, Pettitte noted in his farewell press conference yesterday.

However, he concluded, “my heart’s not where it needs to be,” given a stronger desire to be with his wife and kids in Deer Park, Texas.

It’s hard to begrudge a man that.

Most certainly not Andrew Eugene Pettitte.