Pontiac Grand Prix Coupe Window Regulator / Lifter. Pontiac Grand Prix Coupe OEM #: 10309980, 10309979 Packing: 6PCS/CARTON, 16KGS/CARTON, 60.5*45.5*32.5CM Various window regulator series, such as Buick, Chevrolet, Chrysler, Citroen, Daewoo, Fiat, Ford, Honda, Hyundai, Kia, Lada, Oldsmobile, Peugeot, Pontiac, Renault, Seat and Volkswagen etc.