OER Parts offers a wide selection of Heater Parts for your 2002 Buick Century. OER Parts offers 2002 Buick Century Expansion Valve, 2002 Buick Century Hose Clamps, 2002 Buick Century Hose Fittings, 2002 Buick Century Hoses and Lines, 2002 Buick Century Vent and Duct Parts.