An anonymous good Samaritan saved Marie Stephanie Medina’s life yesterday amid this deadly fireball on the Long Island Expressway.

Medina’s Dodge Neon stalled between exits 48 and 49 when a gasoline tanker struck her, flipped on its side and burst into flames.

Someone yanked Medina, 29, of Bayonne, NJ, from her car.

“He saved me. I kept thanking him,” she recalled.

Medina was treated for minor injuries. The tanker driver, a Brooklyn man in his 50s, died at the scene.