Mahle MIS16259 Engine Intake Manifold Gasket Set

Engine Intake Manifold Gasket Set for GM 3.1L/3.4L

Mahle MIS16259 is an OEM-standard engine intake manifold gasket set built for sealing service on a wide range of GM vehicles. It uses molded rubber intake manifold and plenum gasket materials to help maintain a secure seal during intake manifold service on Buick, Chevrolet, Pontiac, and Oldsmobile applications.

Fits 2000-2005 Buick Century, N/A; Fits 2002-2005 Buick Rendezvous, N/A; Fits 2000-2005 Chevrolet Impala, N/A; Fits 2000-2005 Chevrolet Monte Carlo, N/A; Fits 2001-2005 Pontiac Aztek, N/A; Fits 1999-2005 Pontiac Grand Am, N/A; Fits 1999-2005 Pontiac Montana, N/A; Fits 1999-2004 Oldsmobile Alero, N/A; Fits 1996-2004 Oldsmobile Silhouette, N/A; Fits 1999-2003 Chevrolet Malibu, N/A; Fits 2000-2003 Pontiac Grand Prix, N/A; Fits 2000-2001 Chevrolet Lumina, N/A; Fits 1999 Oldsmobile Cutlass, N/A; Fits 1996-1999 Pontiac Trans Sport, N/A; Fits 1996 Chevrolet Lumina APV, N/A.

• OEM-standard gasket set for intake manifold sealing service
• Molded rubber intake manifold gasket material
• Plenum gasket included with molded rubber construction
• Includes miscellaneous gaskets and seals needed for intake installation
• Built for GM applications across Buick, Chevrolet, Pontiac, and Oldsmobile models

Detailed Product Overview

Mahle MIS16259 is an intake manifold gasket set for GM engines used in vehicles such as the Chevrolet Impala, Pontiac Grand Am, and Buick Century. The set is engineered around molded rubber sealing surfaces and includes the additional gaskets and seals commonly required during intake manifold service. This makes it a direct choice for intake manifold resealing on 1996-2005 GM passenger cars and minivans listed in the fitment data. This part cross-references General Motors (e.g., 12480250, 88984183) for the same application.

Common Repair Uses

• Replacing leaking intake manifold gaskets
• Addressing vacuum leaks at the intake sealing surface
• Restoring proper sealing after intake manifold removal
• Repairing plenum sealing issues on listed GM engines
• Servicing intake-related gasket leaks during engine maintenance

Installation Notes and Tips

Clean the mating surfaces thoroughly before installation and inspect the intake manifold and plenum for warpage or damage. Manifold bolts are sold separately, so verify bolt condition and torque procedure before reassembly. Confirm engine application by year, make, and model before ordering; Mahle MIS16259 is listed for the GM vehicles shown above, including Chevrolet Malibu, Pontiac Grand Prix, and Oldsmobile Alero.

Quality Assurance

Mahle gaskets are used by OEMs and technicians worldwide, and this set is built to OEM standard for sealing performance in the specified applications. Part number MIS16259 is designed for dependable intake manifold service on the listed GM vehicles.