Cometic C5883-051 MLS Cylinder Head Gasket - .051 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Fits 2001-2016 6.6L Duramax diesel engines
• Designed for left-hand cylinder head placement
• .051 inch compressed gasket thickness
• 4.100 inch bore with round configuration
• Three-layer MLS (multi-layer steel) design
• Reinforced with graphite and galvanized steel
• Armor-clad construction seals uneven surfaces
• Built for performance and heavy-duty reliability
• Handles high heat and combustion pressure
• Compatible with Silverado and Sierra HD models

Stop Leaks Before They Start With A Gasket You Can Trust

When you're building or refreshing your Duramax, you need a gasket that can hold up to the punishment of real-world driving and performance upgrades. The Cometic C5883-051 MLS Cylinder Head Gasket is built for just that. Whether you're hauling heavy loads, daily driving with a tune, or pushing more power through your 6.6L, this gasket has your back. Designed for the left-hand side of 2001-2016 Silverado and Sierra 2500HD/3500HD trucks, it delivers a precise fit and long-term sealing reliability. The .051 inch compressed thickness makes it a smart choice for builds where you want to maintain tight tolerances while increasing durability. Reinforced with armor-clad, graphite, and galvanized steel materials, it's made to seal even when the surfaces aren't perfect. This is the gasket you install when failure simply isn’t an option and you want peace of mind under pressure.

Engineered To Deliver Tight Sealing In Harsh Conditions

The Cometic C5883-051 MLS Cylinder Head Gasket is designed for diesel engines that operate under high combustion pressure and elevated temperatures. Built specifically for the left side of the 2001-2016 6.6L Duramax engine, this gasket features a 4.100 inch round bore and a .051 inch compressed thickness to maintain consistent clamping across the head surface. Its three-layer multi-layer steel (MLS) construction provides excellent strength and resistance to fatigue from heat cycling. The gasket is further enhanced with armor-clad, graphite, and galvanized steel sealing materials, making it ideal for applications involving resurfaced or imperfect mating surfaces. This composition ensures the gasket conforms properly to surface inconsistencies, helping maintain compression and prevent leaks. It's well suited for both high-performance diesel builds and heavy-duty work trucks that demand a reliable seal. If you're aiming for long-term performance and tight sealing under tough conditions, this gasket is built to meet those expectations.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Designed for 2001-2016 6.6L Duramax diesel engines
• Fits Chevrolet Silverado and GMC Sierra 2500HD/3500HD models
• Engineered for the left-hand side cylinder head
• Compressed thickness measures .051 inch
• Features a 4.100 inch round bore configuration
• Three-layer multi-layer steel (MLS) construction for durability
• Reinforced with armor-clad, graphite, and galvanized steel materials
• Designed to seal irregular or resurfaced cylinder head surfaces
• Ideal for both performance and heavy-duty applications
• Always confirm side orientation and specs before ordering