Mahle - Engine Cylinder Head Gasket - 54584

Mahle Engine Cylinder Head Gasket – 54584

The Mahle 54584 is a precision-engineered multi-layered steel (MLS) cylinder head gasket designed for use in 6.6L Duramax diesel engines found in a wide range of Chevrolet, GMC, and Hummer vehicles. With a 1.00 mm thickness and a 4.14 in cylinder bore diameter, this gasket provides reliable sealing for high-compression diesel applications, making it suitable for both maintenance and rebuilds.

Mahle gaskets are manufactured to OEM specifications and offer excellent performance in extreme heat and pressure environments, ensuring long-lasting durability and protection.

Key Features:

• Material: Multi-Layered Steel (MLS)

• Thickness: 0.039 in (1.00 mm)

• Cylinder Bore Diameter: 4.14 in (105.40 mm)

• Gasket Sealant Included: No

• Torque-To-Yield Compatible: Yes

• Item Grade: OEM Standard

• Includes: One Cylinder Head Gasket

• Cylinder 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 (2003–2007)

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 (2003–2007)

Hummer:

• H1 (2006)

OEM Reference Numbers – General Motors:

• 97378103

• 97389257

• 98030632

• 98045059

Note: This listing includes one (1) head gasket. Two are required for a complete engine service. Head bolts are not included and must be ordered separately.

📞 Call 1-800-228-8482 or 📧 Email parts@southcentraldiesel.com for fitment support or to build a complete gasket and hardware package.