Mahle HS54621 Engine Cylinder Head Gasket Set

Mahle HS54621 Head Gasket Set

Mahle HS54621 is an OEM-standard engine cylinder head gasket set built for sealing performance in select Mercedes-Benz supercharged applications. It uses a composite cylinder head gasket, composite exhaust manifold gasket material, and molded rubber intake manifold gasket material for a precise seal across critical engine interfaces.

Compatible With 1998-2000 Mercedes-Benz SLK230 and 1999-2000 Mercedes-Benz C230, including engines with a 91.40mm oversized housing bore. This Mahle HS54621 set also includes miscellaneous gaskets and seals and is specified for applications where cylinder head bolts are not included and replacement is recommended.

Key Features

• Engine cylinder head gasket set for Mercedes-Benz applications
• Composite cylinder head gasket material for dependable sealing
• Composite exhaust manifold gasket material
• Molded rubber intake manifold gasket material
• OEM standard item grade
• Torque-to-yield application
• Includes miscellaneous gaskets and seals
• Includes supercharger gaskets

Detailed Description

Mahle HS54621 is engineered for 1998-2000 Mercedes-Benz SLK230 and 1999-2000 Mercedes-Benz C230 models with the 91.40mm oversized housing bore. As an engine cylinder head gasket set, it supports sealing at the cylinder head, intake, exhaust, and supercharger interfaces, helping maintain compression and fluid separation in the upper engine assembly. Mahle is known for gasket and sealing products used by OEMs and technicians worldwide, and this set follows that OE-standard approach for fit and function.

This part cross-references FEL-PRO HS26646PT1 for the same application. The part number HS54621 is the correct reference to verify before ordering, especially on Mercedes-Benz C230 and Mercedes-Benz SLK230 vehicles with the specified engine configuration.

What It Helps Address

• Coolant or oil leakage at the cylinder head sealing surface
• Intake manifold sealing issues
• Exhaust manifold gasket leakage
• Supercharger gasket sealing concerns
• Compression loss from worn upper-engine gaskets

Installation Notes and Tips

Confirm engine identification and the 91.40mm oversized housing bore before installation. Cylinder head bolts are not included, and torque-to-yield fasteners should be replaced during service. Clean all mating surfaces thoroughly and follow the factory torque sequence and tightening specifications for the Mercedes-Benz application.

Quality Assurance

Mahle supplies sealing components built to OEM-standard expectations for engine repair and rebuild work. HS54621 is intended for direct service use on the listed Mercedes-Benz applications and should be matched to the vehicle’s engine configuration before installation.