The R1 Concepts drilled-and-slotted black brake rotor for 1997–2005 Buick LeSabre is described as a direct replacement for the front-left position. The product listing notes a drilled and slotted braking surface with a black finish to match catalog specifications—confirm your LeSabre's year and front-left need to ensure this rotor fits correctly before ordering.
R1 97-05 Buick LeSabre Front Left Drilled & Slotted Black Brake Rotor