Mahle 54678 Engine Cylinder Head Gasket

Mahle 54678 Cylinder Head Gasket for Saab 900

The Mahle 54678 engine cylinder head gasket is an OEM-standard sealing component for 1991-1994 Saab 900 applications. Built with composite and graphite sealing materials, it is specified for dependable combustion sealing and stable performance in the engine’s head-to-block interface.

Key Features

• Engine cylinder head gasket for Saab 900 applications
• Mahle 54678 part number for catalog and service lookup
• Composite construction with graphite cylinder head gasket material
• OEM Standard item grade for factory-style service replacement
• 0.05 in. / 1.35 mm thickness
• 3.71 in. / 94.17 mm cylinder bore diameter
• No gasket sealant included

Product Details

Mahle gaskets are used by OEMs and technicians worldwide for sealing performance in demanding engine environments. The Mahle 54678 head gasket is built to maintain the seal between the cylinder head and engine block, helping preserve compression, coolant separation, and combustion integrity. This part cross-references Saab 87 87 111 and 91 81 512 for the same application.

Used For

• Loss of compression caused by a failed cylinder head gasket
• Coolant leakage at the head-to-block sealing surface
• Combustion gas seepage between the cylinder head and block
• Overheating concerns linked to sealing failure
• Service replacement on 1991-1994 Saab 900 engines

Installation Notes

Fits 1991-1994 Saab 900, N/A. Use graphite cylinder head bolts when installing the Mahle 54678 engine cylinder head gasket. Clean and inspect the mating surfaces carefully before assembly, and verify cylinder head and block flatness during service.

Quality Assurance

Mahle supplies sealing products trusted in OEM and technician service environments. The 54678 is an OEM-standard gasket built to support consistent sealing performance in the specified Saab 900 applications.