Mahle HS54661A Engine Cylinder Head Gasket Set

Engine Sealing Set Overview

The Mahle HS54661A engine cylinder head gasket set is built for sealing service on select GM applications. It combines OEM-standard construction with multi-layer steel head and exhaust manifold gaskets, plus a molded rubber intake manifold gasket for a precise sealing interface.

Compatible With 2008-2009 Cadillac SRX, 2008 Buick Allure, 2008 Buick LaCrosse, and 2008 Cadillac CTS. This Mahle HS54661A set is a direct choice for engine repair work where dependable sealing and torque-to-yield fastener service are required.

Key Features

• OEM-standard gasket set for engine sealing service
• Multi-layer steel cylinder head gasket for durable sealing performance
• Multi-layer steel exhaust manifold gasket for heat-resistant sealing
• Molded rubber intake manifold gasket for a formed sealing surface
• Includes miscellaneous gaskets and seals for related service points
• Torque-to-yield fastener application

Detailed Product Information

Mahle HS54661A is an engine cylinder head gasket set engineered around the sealing demands of the cylinder head, intake, and exhaust interfaces. The multi-layer steel head gasket and exhaust manifold gasket provide a robust sealing structure, while the molded rubber intake manifold gasket helps maintain consistent contact at the intake side. Mahle positions this set as OEM standard, making it a practical option for technicians replacing worn or damaged sealing components on Cadillac SRX, Buick Allure, Buick LaCrosse, and Cadillac CTS applications.

This part cross-references Fel-Pro (e.g., HS 26376 PT, HS 26376 PT-4) for the same application. The HS54661A part number is useful when matching the correct gasket set for service work that calls for torque-to-yield hardware practices and replacement of multiple sealing surfaces at once.

What It Helps Address

• Coolant or compression loss from a compromised head gasket seal
• Exhaust leaks at the manifold sealing surface
• Intake manifold sealing issues that can affect engine operation
• Oil seepage or fluid transfer at related gasket interfaces
• Service needs after cylinder head removal or top-end repair

Installation Notes

Confirm engine code and gasket layout before installation, since fitment is application-specific. Cylinder head bolts are not included, and cylinder head bolt replacement is recommended for these applications. Fuel injection O-rings are also not included. Follow the manufacturer’s torque sequence and torque-to-yield procedures during assembly.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. HS54661A is built to OEM-standard expectations for fit and sealing performance in engine repair service.