Shop 1990 Buick Century Engine Complete Assembly. Optima Hybrid; From 2/8/11. Engine Assembly - BEARINGS, CAMSHAFT - OEM Buick Part # 191TH2GA56AR (191TH 2GA56AR)

Balance shafts. Mounts. Oil pan. Oil pump. Variable valve timing. Optima Hybrid; Exhaust. Optima Hybrid; From 2/8/11. Optima Hybrid; From 4/15/13. Optima Hybrid; Inner. Optima Hybrid; Intake. Optima Hybrid; Outer. Optima Hybrid; STD B (No Color). Optima Hybrid; STD D (Yellow). Optima Hybrid; To 2/8/11. Optima Hybrid; To 4/15/13; Yellow.

Optima Hybrid; From 2/8/11.