Mahle HS54660A Engine Cylinder Head Gasket Set

Mahle HS54660A Cylinder Head Gasket Set

The Mahle HS54660A cylinder head gasket set is built for engine sealing service on a wide range of GM trucks, SUVs, and vans. It uses OEM-standard materials and includes multi-layer steel head and exhaust manifold gaskets, plus a molded rubber intake manifold gasket for a precise seal.

Mahle cylinder head gasket sets are trusted by OEMs and technicians for consistent sealing performance. This set is a direct-fit option for applications such as Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, and Cadillac Escalade service work where dependable engine sealing is required.

Key Features

• Part number HS54660A
• OEM Standard item grade for service replacement
• Multi-layered steel cylinder head gasket material
• Multi-layered steel exhaust manifold gasket material
• Molded rubber intake manifold gasket material
• Contains miscellaneous gaskets and seals
• Torque-to-yield application
• Cylinder head bolts not included

Detailed Description

The Mahle Cylinder Head Gasket Set, HS54660A, is engineered for engine rebuild and repair jobs that demand accurate sealing across multiple mating surfaces. The multi-layer steel head gasket construction supports combustion sealing, while the matching exhaust manifold gasket material and molded rubber intake manifold gasket help maintain proper sealing at adjacent engine interfaces. This makes the HS54660A a practical choice for GM V8 engine service where head gasket replacement is part of a larger top-end repair.

This part cross-references FEL-PRO HS 26192 PT-6 for the same application. Compatible With 2007-2013 Chevrolet Silverado 1500, 2007-2013 GMC Sierra 1500, 2007-2009 Chevrolet Tahoe, and 2007-2009 GMC Yukon, the HS54660A also fits many Silverado 2500 HD, Sierra 2500 HD, Express, Savana, Suburban, and Escalade applications across the listed model years.

Common Repair Uses

• Head gasket replacement after coolant loss or combustion leakage
• Top-end engine reseal during cylinder head service
• Repair of intake or exhaust manifold sealing issues
• Correction of external oil or coolant seepage at gasket surfaces
• Service work on torque-to-yield head bolt applications

Installation Notes and Tips

Confirm engine code and exact vehicle application before installation. Cylinder head bolts are not included and replacement is recommended for torque-to-yield service. Clean all gasket surfaces thoroughly, inspect the cylinder head and block for flatness, and follow the manufacturer’s torque sequence and angle specifications during assembly. The HS54660A is listed for 2020 Chevrolet Express 2500 and Express 3500, 2020 GMC Savana 2500 and Savana 3500, plus earlier 2007-2019 and 2007-2013 GM truck and SUV applications shown in the fitment data.

Quality Assurance

Mahle supplies sealing products used by OEMs and technicians worldwide, and this gasket set is built to OEM-standard expectations for fit and sealing performance. The HS54660A is designed for professional engine repair where consistent material quality and accurate sealing are required.