MAHLE CS54580A LOWER ENGINE GASKET SET FOR 2007.5-2010 GM 6.6L DURAMAX ENGINE

The CS54580A is MAHLE’s OE-grade lower-engine (conversion) gasket kit, designed to seal the lower portion of the engine block on GM’s 6.6 L Duramax engines (LMM platform). It's essentially the second-generation version of the original CS54580 kit, tailored specifically for the 2007.5–2010 LMM Duramax engines

Vehicle Fitment

✔ 2007.5–2010 Chevrolet/GMC Silverado & Sierra 2500HD/3500HD
✔ Duramax LMM 6.6 L V8 engines

It does not cover Duramax LB7, LLY, or LBZ engines—those use the earlier CS54580 kit

Kit Contents

Includes essential gaskets and seals for:

• Oil pan gasket(s)

• Rear main seal

• Timing cover gaskets/seal

• Water pump seal

It targets the lower engine section, so cylinder heads and bolts are not included

 Why It Matters

Designed to deliver OEM-level performance, this kit ensures reliable sealing of vital components in the lower engine. Direct-fit, high-quality parts help prevent leaks, protect oil integrity, and support long-term engine reliability during bottom-end rebuilds.

The MAHLE CS54580A Lower Engine Gasket Set is meticulously engineered for exceptional performance and reliability in the 2007.5–2010 GM 6.6L Duramax engines, specifically designed for the LMM platform. As a second-generation upgrade to the original CS54580 kit, this OE-grade gasket set guarantees a seamless fit and superior sealing capability for the essential lower section of the engine block.

This comprehensive kit includes all critical gaskets and seals, such as the oil pan gasket(s), rear main seal, timing cover gaskets/seal, and water pump seal. Tailored for the needs of Chevy and GMC Silverado and Sierra 2500HD/3500HD models, it ensures perfect compatibility while enhancing the longevity and reliability of your engine. Each component is crafted from premium materials, letting you tackle bottom-end rebuilds with confidence.

Why choose the MAHLE CS54580A? Its design focuses on preventing leaks and maintaining oil integrity, which is crucial for optimal engine performance. With direct-fit, high-quality parts, this gasket set upholds OEM standards, promising peace of mind during operation. Although it does not include cylinder heads or bolts, every essential component for a complete lower engine sealing solution is included, making it a smart choice for any Duramax enthusiast.

Installation is straightforward, thanks to the precision-engineered fit, allowing for efficient rebuilding while minimizing potential engine issues. The MAHLE CS54580A Lower Engine Gasket Set stands out in its class, ensuring that you have the reliability and durability your engine demands. Equip your 2007.5–2010 Duramax with this top-quality gasket set and experience the difference in performance and longevity.