Upgrade your vehicle's performance with the ACDelco GM 89018187 Intake Manifold, designed specifically for Buick LaCrosse and Chevrolet Monte Carlo models with a 5.3L engine. This OEM replacement part ensures a precise fit and enhances engine efficiency with its in-line cross-flow cylinder head design. Crafted from durable plastic and finished in a sleek black color, this intake manifold is built to last and is compatible with gasoline fuel types. Included with your purchase is a necessary gasket to ensure a secure seal upon installation. The manifold's dimensions are 21 inches in length, 13 inches in width, and 8 inches in height, and it mounts conveniently using a bolt-on style. Proudly manufactured in the United States, this intake manifold is not a performance part and does not require universal fitment, ensuring a straightforward replacement for your vehicle's original equipment. Exact item is shown. Genuine GM part. New open box without original packaging. Includes the gaskets shown. Item dimensions 21 x 13 x 8 inches, weight 11 lbs. Made in USA. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties. Most items have 30-day returns along with fast shipping in 1-2 business days (see details). Message us anytime. Buy from a trusted 16+ year seller!