MLB Star Hector Olivera -- Drops $300k ... For Nightclub On Wheels

With Hector Olivera being traded from the Dodgers to the Braves ... he's got a one helluva ride to make the long distance trip -- a SWAGGED OUT $300k pimp van ... TMZ Sports has learned.

Olivera -- who signed a $62.5 MILLION contract with the Dodgers back in May -- recently dropped $60k on a Mercedes Benz sprinter van ... so he could hit the clubs in style and comfort just like Floyd Mayweather and Tyrese.

And just like Floyd and Tyrese, Hector wanted to PIMP THE HELL out of his ride ... so he took it to Alex Vega at the AutoFirm in Miami and dropped $250k to make the inside look like a sick private jet.

Two personal black leather reclining seats ... with an L-shaped bench ... and two 50-inch flat screen TVs. Plus, it's got an Avorza sound system, bar set up and an ice maker!

It's the perfect ride for a guy who wants to party RESPONSIBLY ... it's like Gronk's party bus on steroids.

Your move, Gronk.