Mahle - Engine Cylinder Head Gasket - 54582

Mahle Engine Cylinder Head Gasket – 54582

The Mahle 54582 is a high-performance, OEM-standard multi-layered steel (MLS) cylinder head gasket designed specifically for 6.6L Duramax diesel engines found in a wide range of Chevrolet, GMC, and Hummer vehicles. With a thickness of 1.05 mm (0.041 in) and a 4.14 in bore diameter, this gasket offers excellent sealing properties for rebuilt engines or those requiring slightly thicker head gaskets.

Constructed from durable MLS material and built to handle high-compression diesel environments, this gasket provides long-lasting reliability under extreme operating conditions.

Key Features:

• Material: Multi-Layered Steel (MLS)

• Thickness: 0.041 in (1.05 mm)

• Cylinder Bore Diameter: 4.14 in (105.40 mm)

• Torque-To-Yield Compatible: Yes

• Gasket Sealant Included: No

• Item Grade: OEM Standard

• Package Quantity: 1 Gasket

• Cylinder Head Bolts Included: No

Vehicle Fitment – GM 6.6L Duramax Diesel:

Chevrolet:

• Silverado 2500 HD (2001–2016)

• 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:

• 97309561

• 97333724

• 98030630

• 98045057

Note: This is a single cylinder head gasket. Two are required per engine. Cylinder head bolts are not included and must be purchased separately.

📞 Call 1-800-228-8482 or 📧 Email parts@southcentraldiesel.com for help confirming compatibility or bundling with a complete gasket kit or hardware.