MAHLE 54661 Multi-Layer Steel Cylinder Head Gasket

The MAHLE Original 54661 is a precision-engineered multi-layer steel (MLS) cylinder head gasket designed to provide superior sealing performance for GM 3.6L V6 engines. This OEM-quality gasket features advanced multi-layered steel construction that delivers exceptional durability and leak-free sealing under extreme temperatures and pressures.

Key Specifications:

• Bore diameter: 3.740 inches (94.98mm)
• Compressed thickness: 0.050 inches (1.35mm)
• Combustion chamber volume: 9cc
• Multi-layer steel (MLS) construction for superior sealing
• Torque-to-yield design requiring new head bolts
• Sold individually per cylinder head

Quality Features:

• Meets or exceeds OEM specifications
• Uses OE equivalent or better materials throughout
• Shrink-wrapped tray packaging ensures proper fitment verification before installation
• Trusted by OEMs and professional technicians worldwide
• 1-year limited warranty coverage

MAHLE Original gaskets are manufactured to the same exacting standards as the original equipment installed at the factory. The multi-layer steel design provides improved conformability to sealing surfaces, superior combustion sealing, and enhanced resistance to head lift and gasket failure. This gasket is commonly used in GM vehicles including Buick, Cadillac, Chevrolet, GMC, Pontiac, and Saturn models equipped with 3.6L V6 engines.

OEM Cross-References: Replaces GM 12624743, 12634479, Suzuki 11140-78811, 11403-78838, and Fel-Pro 26377 PT.

Important Note: Cylinder head gaskets are sold individually. New head bolts are required for proper installation due to the torque-to-yield design. Always follow manufacturer torque specifications and installation procedures.