OER Parts offers a wide selection of Dress Up Kits for your 1990 Mercury Cougar. OER Parts offers 1990 Mercury Cougar Valve Covers, 1990 Mercury Cougar Exhaust Manifolds, 1990 Mercury Cougar Intake Manifolds, 1990 Mercury Cougar Timing Covers, 1990 Mercury Cougar Water Pumps, 1990 Mercury Cougar Oil Pans, 1990 Mercury Cougar Custom Under Hood Mirrors, 1990 Mercury Cougar Radiator Support Show Panel, and more...