OER Parts offers a wide selection of Body Components for your 2004 Buick Century. OER Parts offers 2004 Buick Century Bumper Brackets, 2004 Buick Century Filler Panels 2004 Buick Century Guards & Bumperettes, 2004 Buick Century Hardware, 2004 Buick Century Impact Bar & Absorber, 2004 Buick Century License Plate Brackets, Hardware & Frames 2004 Buick Century License Plate Panel, 2004 Buick Century License Plates, and 2004 Buick Century Seals.