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Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X
Upgrade your 2001–2016 GM 6.6L Duramax with the MAHLE Wave-Stopper Cylinder Head Gasket (Grade C). This multi-layered steel (MLS) gasket delivers reliable sealing under the high combustion pressures, heat, and load variations common in LB7, LLY, LBZ, LMM, and LML engines.
Key Technology
MAHLE’s patented Wave-Stopper design features concentric waves in the spring steel active layer around the combustion chamber. These waves allow the gasket to dynamically adapt to changing cylinder pressures and mechanical loads, helping maintain consistent clamp load and a tight seal. This reduces the risk of combustion gas and coolant leaks compared with conventional designs—especially valuable in stock or modified/high-load Duramax applications.
Features
- Multi-layered steel (MLS) construction for durability and recovery under thermal cycling
- Wave-Stopper active layer for adaptive sealing under extreme heat and pressure
- Grade C thickness of 1.05 mm (0.041") for proper combustion chamber clearance on standard-bore engines
- Direct-fit replacement for straightforward installation
- OEM-standard quality materials that meet or exceed original specifications
Specifications
- Part series: MAHLE 5459X (sold individually — left or right side)
- Thickness / Grade: 1.05 mm (Grade C)
- Bore diameter: 106.00 mm (4.17") — standard bore only
- Material: Multi-layered steel
- Gasket sealant included: No
- Torque-to-yield: Yes (designed for proper TTY clamping)
Fitment
Fits 2001–2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML), including Chevrolet Silverado / GMC Sierra 2500HD & 3500HD and select Express/Savana applications. Confirm side (driver/left or passenger/right) and bore size for your specific engine.
Important notes:
- Sold individually (order both sides for a complete job if needed).
- Cylinder head bolts/studs are not included — new torque-to-yield bolts or quality studs are strongly recommended.
- For standard-bore cylinders only.
Ideal for head gasket replacement, top-end rebuilds, or preventive service when you need proven sealing performance on a work truck, daily driver, or tuned Duramax.
Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X
Upgrade your 2001–2016 GM 6.6L Duramax with the MAHLE Wave-Stopper Cylinder Head Gasket (Grade C). This multi-layered steel (MLS) gasket delivers reliable sealing under the high combustion pressures, heat, and load variations common in LB7, LLY, LBZ, LMM, and LML engines.
Key Technology
MAHLE’s patented Wave-Stopper design features concentric waves in the spring steel active layer around the combustion chamber. These waves allow the gasket to dynamically adapt to changing cylinder pressures and mechanical loads, helping maintain consistent clamp load and a tight seal. This reduces the risk of combustion gas and coolant leaks compared with conventional designs—especially valuable in stock or modified/high-load Duramax applications.
Features
Multi-layered steel (MLS) construction for durability and recovery under thermal cycling
Wave-Stopper active layer for adaptive sealing under extreme heat and pressure
Grade C thickness of 1.05 mm (0.041") for proper combustion chamber clearance on standard-bore engines
Direct-fit replacement for str[...]
Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X
Upgrade your 2001–2016 GM 6.6L Duramax with the MAHLE Wave-Stopper Cylinder Head Gasket (Grade C). This multi-layered steel (MLS) gasket delivers reliable sealing under the high combustion pressures, heat, and load variations common in LB7, LLY, LBZ, LMM, and LML engines.
Key Technology
MAHLE’s patented Wave-Stopper design features concentric waves in the spring steel active layer around the combustion chamber. These waves allow the gasket to dynamically adapt to changing cylinder pressures and mechanical loads, helping maintain consistent clamp load and a tight seal. This reduces the risk of combustion gas and coolant leaks compared with conventional designs—especially valuable in stock or modified/high-load Duramax applications.
Features
- Multi-layered steel (MLS) construction for durability and recovery under thermal cycling
- Wave-Stopper active layer for adaptive sealing under extreme heat and pressure
- Grade C thickness of 1.05 mm (0.041") for proper combustion chamber clearance on standard-bore engines
- Direct-fit replacement for straightforward installation
- OEM-standard quality materials that meet or exceed original specifications
Specifications
- Part series: MAHLE 5459X (sold individually — left or right side)
- Thickness / Grade: 1.05 mm (Grade C)
- Bore diameter: 106.00 mm (4.17") — standard bore only
- Material: Multi-layered steel
- Gasket sealant included: No
- Torque-to-yield: Yes (designed for proper TTY clamping)
Fitment
Fits 2001–2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML), including Chevrolet Silverado / GMC Sierra 2500HD & 3500HD and select Express/Savana applications. Confirm side (driver/left or passenger/right) and bore size for your specific engine.
Important notes:
- Sold individually (order both sides for a complete job if needed).
- Cylinder head bolts/studs are not included — new torque-to-yield bolts or quality studs are strongly recommended.
- For standard-bore cylinders only.
Ideal for head gasket replacement, top-end rebuilds, or preventive service when you need proven sealing performance on a work truck, daily driver, or tuned Duramax.