Head Gasket Set with MLS Gaskets (Cathedral Port) FIT 2002-2011 Silverado Suburban Tahoe GMC Sierra Yukon 4.8L 5.3L V8, LS-Based Gen III/IV Replaces HS26191PT CS9284-1 Set
US$30.20
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Product details
| Management number | 216152781 | Release Date | 2026/04/19 | List Price | US$30.20 | Model Number | 216152781 | ||
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- Precise Fitment Protocol: FIT 2002-2011 Chevy Silverado 1500 / Tahoe 4.8L 5.3L, FIT 2002-2011 GMC Sierra 1500 / Yukon 4.8L 5.3L, FIT 2002-2006 Suburban 1500, FIT 2004-2008 Express Savana. Engine: GM LS-Based V8 Gen III/IV. Non-Compatibility Notice: Engineered for Cathedral Port intake manifolds only; will NOT fit Rectangular Port cylinder heads.
- Multi-Layer Steel (MLS) Engineering: Features two Multi-Layer Steel (MLS) head gaskets with a physical 0.031-inch core thickness and integrated stainless steel fire rings. This hardware is engineered to maintain a constant physical clamp load and support stable thermal geometry under high-combustion pressure.1
- Integrated Engine Sealing Group: This comprehensive kit includes intake and exhaust manifold gaskets, valve cover gaskets, and a complete timing cover and oil pan sealing group. The gaskets are manufactured with molded silicone beads to ensure a precise physical interface with factory machined engine surfaces without the requirement for extra RTV sealant.
- Viton Material Integrity: Includes specialized Viton valve stem seals engineered for a physical temperature resistance range of -40°C to 200°C (-40°F to 392°F). These components maintain chemical and thermal stability during high-RPM operational cycles, ensuring a consistent physical barrier for the internal valve train lubrication.
- Restoration of System Geometry: Engineered to address internal fluid resistance and maintain proper cylinder head alignment. This kit restores factory handling characteristics by providing a reinforced physical seal across all critical engine ports, maintaining the integrity of the combustion chamber geometry for high-mileage Gen III/IV engine platforms.
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