OER Parts offers a wide selection of Oil System & Parts for your 1979 Buick Century. OER Parts offers 1979 Buick Century Bypass Valves, 1979 Buick Century Dipsticks and Tubes, 1979 Buick Century Filter Adapters, 1979 Buick Century Oil Coolers, 1979 Buick Century Oil Filters, 1979 Buick Century Oil Pan Baffles, 1979 Buick Century Oil Pans, 1979 Buick Century Oil Pickup Tubes, 1979 Buick Century Oil Pumps, and 1979 Buick Century Oil Senders.