MAHLE 55522 CYLINDER HEAD GASKET (GRADE A) FOR 2017-2023 GM 6.6L DURAMAX L5P ENGINE

The MAHLE 55522 is a premium, OEM-grade head gasket with MLS construction and torque-to-yield design. It’s optimized for 2017–2023 GM 6.6L Duramax L5P engines and is ideal for head seal repairs or rebuilds. Being the Grade A (thinnest) option, it’s best suited for standard rebuilds without excessive head machining.

 Core Details & Construction

• Part Number: MAHLE 55522 (Grade A)

• Construction: Multi-Layer Steel (MLS) with combustion load limiter and torque‑to‑yield design
  

• Thickness: Approximately 1.14 – 1.26 mm
  

• Warranty: Typically comes with a 1-year warranty

 Vehicle Fitment

Specifically designed for 2017–2023 GM heavy-duty pickups equipped with the 6.6L Duramax L5P diesel engine:

• Chevrolet Silverado 2500HD/3500HD

• GMC Sierra 2500HD/3500HD
  

 Key Specs

The MAHLE 55522 Cylinder Head Gasket is the standout choice for those seeking reliability and superior performance in their 2017-2023 GM 6.6L Duramax L5P engine. Crafted with exceptional precision, this OEM-grade head gasket features a Multi-Layer Steel (MLS) construction, ensuring optimal sealing and durability for your heavy-duty pickup. With its innovative torque-to-yield design, the MAHLE 55522 is built to withstand the high demands and extreme conditions of diesel engine operation, providing essential support for your engine during critical performance tasks.

Measuring approximately 1.14 – 1.26 mm in thickness, this Grade A option is specifically engineered for standard rebuilds, making it an ideal solution for head seal repairs without the necessity for extensive head machining. Its robust combustion load limiter enhances resilience, making the MAHLE 55522 suitable for tasks requiring precision and endurance.

Designed for compatibility with Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD models, this head gasket ensures a perfect fit and reliable function for your vehicle. Each gasket typically comes with a 12-month warranty, underlining the commitment to quality that MAHLE upholds in its parts.

Whether you're tackling a routine maintenance task or a comprehensive engine rebuild, the MAHLE 55522 Cylinder Head Gasket provides peace of mind—delivering the performance and reliability expected from a leading brand in automotive components. Upgrade your engine’s health and longevity with this essential part, and enjoy the confidence of knowing your Duramax L5P engine is equipped with only the best.