
- Direct-Fit Replacement: Engineered specifically for the 6.6L L5P Duramax, ensuring perfect fitment and simplifying the installation process.
- Time-Saving Solution: Includes all necessary seals and gaskets for the upper engine, consolidating your parts purchase and speeding up reassembly.
- Ensures Proper Sealing: Built with premium materials to meet or exceed OEM specifications, providing a reliable, leak-free seal critical for engine health.
- Compatibility: Designed for 2017-2021 L5P Duramax engines in Chevy Silverado and GMC Sierra 2500HD/3500HD trucks.

Invest in the MAHLE HS55522 Head Set (Without Head Gaskets) to ensure a precise, time-saving, and high-quality top-end engine reassembly for your 2017-2021 L5P Duramax in the Chevy Silverado or GMC Sierra 2500HD/3500HD. While you may be focused on a complete engine rebuild or repair, don't overlook the critical role that a superior gasket set plays. This comprehensive top-end gasket set provides all the essential gaskets and seals needed for the upper engine, eliminating the hassle of sourcing individual components. By choosing MAHLE, a brand renowned for its quality, you are selecting components manufactured with high-quality materials engineered to deliver a leak-proof seal and guarantee long service life, restoring your Duramax's performance and reliability.
Direct-Fit Replacement: Engineered specifically for the 6.6L L5P Duramax, ensuring perfect fitment and simplifying the installation process.
Time-Saving Solution: Includes all necessary seals and gaskets for the upper engine, consolidating your parts purchase and speeding up reassembly.
Ensures Proper Sealing: Built with premium materials to meet or exceed OEM specifications, providing a reliable, leak-free [...]
- Direct-Fit Replacement: Engineered specifically for the 6.6L L5P Duramax, ensuring perfect fitment and simplifying the installation process.
- Time-Saving Solution: Includes all necessary seals and gaskets for the upper engine, consolidating your parts purchase and speeding up reassembly.
- Ensures Proper Sealing: Built with premium materials to meet or exceed OEM specifications, providing a reliable, leak-free seal critical for engine health.
- Compatibility: Designed for 2017-2021 L5P Duramax engines in Chevy Silverado and GMC Sierra 2500HD/3500HD trucks.