Mahle - Engine Cylinder Head Gasket - 54581

Mahle Engine Cylinder Head Gasket – 54581

The Mahle 54581 is a premium-quality multi-layered steel (MLS) head gasket built to OEM standards for a wide range of Chevrolet, GMC, and Hummer vehicles equipped with the 6.6L Duramax diesel engine. With a thickness of 1.00 mm (0.039"), this gasket provides excellent sealing for engines requiring a slightly thicker head gasket during rebuilds or head resurfacing.

Mahle’s MLS design ensures superior durability and sealing under extreme temperature and pressure, making it ideal for heavy-duty use or performance applications.

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

• Package Quantity: 1 Head 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 – GM:

• 97309560

• 98030629

• 98045056

Note: This listing is for one (1) cylinder head gasket. If replacing both heads, two gaskets are required. Head bolts are not included and must be purchased separately.

📞 Call 1-800-228-8482 or 📧 Email parts@southcentraldiesel.com to confirm fitment or bundle with a full top-end gasket set and bolts.