Interchange Part: Stant SP-28, Stant R-7, AC Delco RC-7. Genuine Stant BSP-28 Radiator Cap (NOS). Part Number: BSP-28 (Stant). This part is designed for theRadiator position on specific 1948-1962 Chevrolet, Buick, and AMC vehicles requiring a low-pressure (7 lbs) cap.
