Mahle - GM 6.6L Duramax Engine Cylinder Head Gasket - 54583

Mahle Engine Cylinder Head Gasket – 54583

The Mahle 54583 is a premium multi-layered steel (MLS) cylinder head gasket engineered to meet or exceed OEM specifications for select Chevrolet, GMC, and Hummer vehicles equipped with the 6.6L Duramax diesel engine. Designed for durability and precision sealing, this gasket offers excellent performance under high combustion pressures and extreme heat—ideal for stock or performance applications.

This head gasket is built to OEM thickness specifications and is compatible with torque-to-yield head bolts.

Key Features:

• Material: Multi-Layered Steel (MLS)

• Thickness: 0.037 in (0.95 mm)

• Cylinder Bore Diameter: 4.14 in (105.40 mm)

• Gasket Sealant Included: No

• Item Grade: OEM Standard

• Torque-To-Yield Compatible: Yes

• Package Includes: 1 Cylinder Head Gasket (single)

• Head Bolts Included: No

Vehicle Fitment – GM 6.6L Duramax Diesel:

Chevrolet:

• Silverado 2500 HD (2001–2016)

• Silverado 2500 HD Classic (2007)

• Silverado 3500 (2001–2006)

• Silverado 3500 Classic (2007)

• Silverado 3500 HD (2007–2016)

• Express 2500 / 3500 / 4500 (2006–2016)

• C4500 / C5500 Kodiak (2003–2009)

GMC:

• Sierra 2500 HD (2001–2016)

• Sierra 2500 HD Classic (2007)

• Sierra 3500 (2001–2006)

• Sierra 3500 Classic (2007)

• Sierra 3500 HD (2007–2016)

• Savana 2500 / 3500 / 4500 (2006–2016)

• C4500 / C5500 Topkick (2003–2009)

Hummer:

• H1 (2006)

OEM Reference Numbers – GM:

• 97309562

• 97378102

• 98030631

• 980306317

• 98045058

Note: This is a single cylinder head gasket. For a complete engine, two may be required. Head bolts are not included and should be purchased separately.