Cylinder Head Gasket for 1998–2019 GM 5.3L / 5.7L Engines – Replaces OE 12589226, 12498544
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Material: Multi-layer steel (MLS), provides excellent sealing performance
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Bore Diameter: 3.940 inches (approx. 100 mm)
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Thickness: 0.052 inches (approx. 1.32 mm)
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Combustion Chamber Volume: 10.38 cc
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Installation: Reversible for left or right side—no need to distinguish sides
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Package Quantity: 1 cylinder head gasket per order
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Vehicle Compatibility
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Chevrolet: Silverado, Tahoe, Suburban, Camaro, Corvette
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GMC: Sierra, Yukon
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Buick: Rainier
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Cadillac: Escalade
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Pontiac: GTO
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Hummer: H2
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Saab: 9-7X
Note: Compatibility may vary depending on model year and configuration. Please confirm fitment before purchase.
Installation Recommendations
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Replacement Tip: To ensure optimal sealing performance, it is recommended that the cylinder head bolts and gasket be replaced.
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Installation Notice: To prevent leaks, make sure the engine block and cylinder head surfaces are clean and flat before installation.
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Torque Specifications: Always follow the torque specs in the vehicle’s service manual. Tighten bolts in multiple stages and in sequence.
Buying Tips
When choosing a replacement part, it is advisable to select products from reputable brands such as ACDelco, Mahle, or Victor Reinz to ensure quality and compatibility.
Also, please verify the OEM part numbers (e.g., 12589226, 12498544) to match your vehicle requirements.
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