Mahle 55380 Engine Cylinder Head Gasket

Mahle Cylinder Head Gasket for GM Applications

The Mahle 55380 cylinder head gasket is a multi-layered steel sealing component for select Chevrolet, Buick, GMC, and Cadillac engines. It is built for direct replacement service where reliable cylinder head sealing is required, including applications such as the Chevrolet Camaro, Malibu, Equinox, and Traverse.

Mahle cylinder head gaskets are trusted by OEMs and technicians for consistent sealing performance in engine repair work. Part number 55380 also cross-references General Motors 12629404 for the same application.

Key Features

• Multi-layered steel cylinder head gasket construction
• Direct-fit replacement for select GM engine applications
• Engine sealing component for combustion chamber, coolant, and oil separation
• Mahle Cylinder Head Gasket product line for OE-style service parts
• Part number 55380 for catalog and service identification

Fitment Details

• Fits 2019-2022 Chevrolet Camaro, N/A
• Fits 2019-2022 Chevrolet Malibu, N/A
• Fits 2019-2020 Buick Envision, N/A
• Fits 2019-2020 Buick Regal Sportback, N/A
• Fits 2019-2020 Buick Regal TourX, N/A
• Fits 2019-2020 Chevrolet Equinox, N/A
• Fits 2019-2020 GMC Terrain, N/A
• Fits 2019 Cadillac ATS, N/A
• Fits 2019 Cadillac CTS, N/A
• Fits 2019 Chevrolet Traverse, N/A
• Fits 2016-2018 Buick Envision, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2018 Buick Regal Sportback, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2018 Buick Regal TourX, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2013-2018 Cadillac ATS, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2016-2018 Cadillac CT6, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2014-2018 Cadillac CTS, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2016-2018 Chevrolet Camaro, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2018 Chevrolet Equinox, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2013-2018 Chevrolet Malibu, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2018 Chevrolet Traverse, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2018 GMC Terrain, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket
• Fits 2014-2017 Buick Regal, N/A; replacement of cylinder head bolts necessary for proper installation of multi-layered steel gasket

What This Gasket Helps Address

• Loss of cylinder compression from a worn head gasket
• Coolant and oil leakage at the cylinder head sealing surface
• Combustion gas leakage between the head and engine block
• Overheating concerns caused by sealing failure
• Engine repair needs on Chevrolet Camaro, Malibu, Equinox, and related GM models

Installation Notes and Tips

Confirm engine code and gasket match before installation. For the listed multi-layered steel applications, replacement of cylinder head bolts is necessary for proper installation on the affected Buick, Cadillac, Chevrolet, and GMC models. Clean and inspect the mating surfaces carefully, and follow the factory torque sequence and specifications during assembly.

Quality Assurance

Mahle gaskets are used in OEM and technician service environments worldwide, with a focus on dependable engine sealing performance. Part number 55380 is an OE-style replacement for select GM applications and cross-references General Motors 12629404.