GM HEAD GASKET (GRADE C) 12747436 | 2017-2026 6.6L DURAMAX L5P

Replace a leaking or damaged cylinder head gasket with the GM 12747436 Head Gasket. Designed as a genuine GM replacement component, this Grade C head gasket provides the factory fit, sealing performance, and reliability required when servicing your Duramax engine.

The factory head gasket is not reusable and should always be replaced whenever the cylinder head is removed. Manufactured to rigorous GM standards, this gasket is engineered, tested, and validated to deliver long-lasting sealing performance under the demanding conditions found in modern diesel engines.

As a genuine GM component, this head gasket incorporates the latest production and service updates, ensuring compatibility with current materials and engineering improvements.

Features:

• Genuine GM replacement component
• Grade C head gasket
• Direct-fit replacement
• Designed to meet original equipment specifications
• Provides reliable sealing between the cylinder head and engine block
• Recommended whenever the cylinder head is removed
• Manufactured and validated to GM standards
• Sold individually