Mahle 55190 Engine Cylinder Head Gasket

Engine Cylinder Head Gasket for GM V6 Applications

Mahle 55190 is an engine cylinder head gasket for select Chevrolet, Pontiac, Buick, and Oldsmobile vehicles. It is built for applications that require a graphite sealing surface and is listed for overbore .010" service with cylinder head bolt replacement recommended.

Key Features

• Engine cylinder head gasket for select GM applications
• Graphite construction for sealing performance
• Overbore .010" application listing
• Cylinder head bolt replacement recommended during service
• Mahle part number 55190

Detailed Description

Mahle 55190 is a head gasket used in engine sealing service where the cylinder head must maintain compression and isolate coolant and combustion passages. Mahle supplies gaskets used by OEMs and technicians worldwide, and this part follows that sealing-focused approach for compatible Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Am, and related GM models. This part cross-references FEL-PRO 541SD for the same application.

Compatible With 2005-2009 Chevrolet Equinox, 2006-2009 Pontiac Torrent, 2002-2005 Buick Rendezvous, 2000-2005 Chevrolet Impala, 2000-2005 Chevrolet Monte Carlo, 2001-2005 Pontiac Aztek, 1999-2005 Pontiac Grand Am, 1999-2005 Pontiac Montana, 1999-2004 Oldsmobile Alero, 1996-2004 Oldsmobile Silhouette, 1996-1999 Pontiac Trans Sport, and 1996 Chevrolet Lumina APV. Mahle 55190 is a direct-fit service part for these listed engine applications.

Common Problems This Part Addresses

• Loss of cylinder compression from a failed head gasket
• Coolant leakage between the cylinder head and engine block
• Combustion gas leakage into the cooling system
• Oil and coolant cross-contamination at the head sealing surface
• Sealing issues after cylinder head service or overbore machining

Installation Notes and Tips

Follow the vehicle service manual for torque sequence, surface preparation, and final inspection. The fitment notes specify overbore .010" and recommend cylinder head bolt replacement, so inspect fasteners and mating surfaces before assembly. Confirm engine code and gasket dimensions against the vehicle application before installation.

Quality Assurance

Mahle gaskets are supplied as sealing components trusted in OEM and professional repair environments. Mahle 55190 is engineered for the listed GM applications and built to support reliable cylinder head sealing in service.