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Apex AHG390 Engine Cylinder Head GasketOE Quality 60-Day Returns
Part #: AHG390

Apex AHG390 Engine Cylinder Head Gasket

353 vehicles fit this part
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Fitment: Cadillac, Chevrolet, GMC, Hummer, Pontiac, and Saab, 9-7x, Avalanche, Camaro, Caprice, Corvette, CTS, Escalade, Escalade ESV, Escalade EXT, Express 2500, Express 3500, G8, GTO, H2, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 Classic, Sierra 1500 HD, Sierra 1500 HD Classic, Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Silverado 3500 HD, SS, SSR, Suburban 1500, Suburban 2500, Suburban 3500 HD, Tahoe, Trailblazer, Yukon, Yukon XL 1500, and Yukon XL 2500
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Not what you need? See all Engine Cylinder Head Gasket options

Reliable Engine Cylinder Head Gasket for Select GM Vehicles

The Apex AHG390 engine cylinder head gasket is designed for precise fitment and dependable sealing in a range of General Motors vehicles. Engineered to meet OEM specifications, this gasket supports optimal engine performance and durability.

  • Compatible with Cadillac, Chevrolet, GMC, Hummer, Pontiac, and Saab models
  • Fits popular vehicles including Silverado 1500, Escalade, Tahoe, Camaro, and more
  • Ensures a secure seal between the engine block and cylinder head
  • Manufactured to withstand high temperatures and pressure
  • Part number AHG390 for easy identification and replacement

Durable Construction for Engine Sealing

The Apex AHG390 cylinder head gasket is crafted to provide a reliable seal that prevents coolant, oil, and combustion gases from leaking between the engine block and cylinder head. This gasket is engineered to endure the thermal and mechanical stresses typical in engines found in vehicles such as the Chevrolet Silverado 1500 HD, GMC Sierra 2500 HD, Cadillac Escalade EXT, and Pontiac G8. By maintaining proper sealing, it helps preserve engine compression and prevents contamination of engine fluids.

Compatible Vehicle Applications

This engine cylinder head gasket is compatible with a wide range of GM vehicles, including but not limited to:

  • Cadillac Escalade, Escalade ESV, Escalade EXT, CTS
  • Chevrolet Avalanche, Camaro, Caprice, Corvette, Silverado 1500 (Classic and HD), Suburban 1500/2500/3500 HD, Tahoe, Trailblazer
  • GMC Sierra 1500/2500/3500 (Classic and HD), Yukon, Yukon XL 1500/2500
  • Hummer H2
  • Pontiac G8, GTO, 9-7x
  • Saab 9-7x

Common Engine Issues Addressed

  • Prevents coolant and oil leaks between the cylinder head and engine block
  • Maintains engine compression for efficient combustion
  • Reduces risk of engine overheating due to gasket failure
  • Helps avoid cross-contamination of engine fluids
  • Supports engine longevity by ensuring proper sealing

Installation Notes and Tips

When installing the Apex AHG390 cylinder head gasket, ensure the cylinder head and engine block surfaces are clean and free of debris. Follow manufacturer torque specifications for cylinder head bolts to avoid warping or gasket damage. It is recommended to inspect the cylinder head for cracks or warping before installation. Proper installation will help maintain engine performance and prevent premature gasket failure.

Quality Assurance and Warranty

The Apex AHG390 cylinder head gasket is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Apex products typically undergo rigorous quality control to ensure reliability in demanding engine environments. Using this gasket helps maintain the integrity of your engine’s sealing system.

This part fits 353 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020ChevroletExpress 25006.0LV8N/A
2020ChevroletExpress 35006.0LV8N/A
2020GMCSavana 25006.0LV8N/A
2020GMCSavana 35006.0LV8N/A
2019ChevroletExpress 25006.0LV8N/A
2019ChevroletExpress 35006.0LV8N/A
2019ChevroletSilverado 2500 HD6.0LV8N/A
2019ChevroletSilverado 3500 HD6.0LV8N/A
2019ChevroletSuburban 3500 HD6.0LV8N/A
2019GMCSavana 25006.0LV8N/A
2019GMCSavana 35006.0LV8N/A
2019GMCSierra 2500 HD6.0LV8N/A
2019GMCSierra 3500 HD6.0LV8N/A
2018ChevroletExpress 25006.0LV8N/A
2018ChevroletExpress 35006.0LV8N/A
2018ChevroletSilverado 2500 HD6.0LV8N/A
2018ChevroletSilverado 3500 HD6.0LV8N/A
2018ChevroletSuburban 3500 HD6.0LV8N/A
2018GMCSavana 25006.0LV8N/A
2018GMCSavana 35006.0LV8N/A
2018GMCSierra 2500 HD6.0LV8N/A
2018GMCSierra 3500 HD6.0LV8N/A
2017ChevroletCaprice6.0LV8N/A
2017ChevroletExpress 25006.0LV8N/A
2017ChevroletExpress 35006.0LV8N/A
2017ChevroletSilverado 2500 HD6.0LV8N/A
2017ChevroletSilverado 3500 HD6.0LV8N/A
2017ChevroletSS6.2LV8N/A
2017ChevroletSuburban 3500 HD6.0LV8N/A
2017GMCSavana 25006.0LV8N/A
2017GMCSavana 35006.0LV8N/A
2017GMCSierra 2500 HD6.0LV8N/A
2017GMCSierra 3500 HD6.0LV8N/A
2016ChevroletCaprice6.0LV8N/A
2016ChevroletExpress 25006.0LV8N/A
2016ChevroletExpress 35006.0LV8N/A
2016ChevroletSilverado 2500 HD6.0LV8N/A
2016ChevroletSilverado 3500 HD6.0LV8N/A
2016ChevroletSS6.2LV8N/A
2016ChevroletSuburban 3500 HD6.0LV8N/A
2016GMCSavana 25006.0LV8N/A
2016GMCSavana 35006.0LV8N/A
2016GMCSierra 2500 HD6.0LV8N/A
2016GMCSierra 3500 HD6.0LV8N/A
2015ChevroletCamaro6.2LV8N/A
2015ChevroletCaprice6.0LV8N/A
2015ChevroletExpress 25006.0LV8N/A
2015ChevroletExpress 35006.0LV8N/A
2015ChevroletSilverado 2500 HD6.0LV8N/A
2015ChevroletSilverado 3500 HD6.0LV8N/A
2015ChevroletSS6.2LV8N/A
2015GMCSavana 25006.0LV8N/A
2015GMCSavana 35006.0LV8N/A
2015GMCSierra 2500 HD6.0LV8N/A
2015GMCSierra 3500 HD6.0LV8N/A
2014CadillacEscalade6.2LV8N/A
2014CadillacEscalade ESV6.2LV8N/A
2014ChevroletCamaro6.2LV8N/A
2014ChevroletCaprice6.0LV8N/A
2014ChevroletExpress 25006.0LV8N/A
2014ChevroletExpress 35006.0LV8N/A
2014ChevroletSilverado 2500 HD6.0LV8N/A
2014ChevroletSilverado 3500 HD6.0LV8N/A
2014ChevroletSS6.2LV8N/A
2014GMCSavana 25006.0LV8N/A
2014GMCSavana 35006.0LV8N/A
2014GMCSierra 2500 HD6.0LV8N/A
2014GMCSierra 3500 HD6.0LV8N/A
2014GMCYukon6.2LV8N/A
2014GMCYukon XL 15006.2LV8N/A
2013CadillacEscalade6.0LV8N/A
2013CadillacEscalade ESV6.2LV8N/A
2013CadillacEscalade EXT6.2LV8N/A
2013ChevroletCamaro6.2LV8N/A
2013ChevroletCaprice6.0LV8N/A
2013ChevroletCorvette6.2LV8N/A
2013ChevroletExpress 25006.0LV8N/A
2013ChevroletExpress 35006.0LV8N/A
2013ChevroletSilverado 15006.0LV8N/A
2013ChevroletSilverado 2500 HD6.0LV8N/A
2013ChevroletSilverado 3500 HD6.0LV8N/A
2013ChevroletSuburban 25006.0LV8N/A
2013ChevroletTahoe6.0LV8N/A
2013GMCSavana 25006.0LV8N/A
2013GMCSavana 35006.0LV8N/A
2013GMCSierra 15006.0LV8N/A
2013GMCSierra 2500 HD6.0LV8N/A
2013GMCSierra 3500 HD6.0LV8N/A
2013GMCYukon6.0LV8N/A
2013GMCYukon XL 15006.2LV8N/A
2013GMCYukon XL 25006.0LV8N/A
2012CadillacEscalade6.0LV8N/A
2012CadillacEscalade ESV6.2LV8N/A
2012CadillacEscalade EXT6.2LV8N/A
2012ChevroletCamaro6.2LV8N/A
2012ChevroletCaprice6.0LV8N/A
2012ChevroletCorvette6.2LV8N/A
2012ChevroletExpress 25006.0LV8N/A
2012ChevroletExpress 35006.0LV8N/A
2012ChevroletSilverado 15006.0LV8N/A
2012ChevroletSilverado 2500 HD6.0LV8N/A
2012ChevroletSilverado 3500 HD6.0LV8N/A
2012ChevroletSuburban 25006.0LV8N/A
2012ChevroletTahoe6.0LV8N/A
2012GMCSavana 25006.0LV8N/A
2012GMCSavana 35006.0LV8N/A
2012GMCSierra 15006.0LV8N/A
2012GMCSierra 2500 HD6.0LV8N/A
2012GMCSierra 3500 HD6.0LV8N/A
2012GMCYukon6.0LV8N/A
2012GMCYukon XL 15006.2LV8N/A
2012GMCYukon XL 25006.0LV8N/A
2011CadillacEscalade6.0LV8N/A
2011CadillacEscalade ESV6.2LV8N/A
2011CadillacEscalade EXT6.2LV8N/A
2011ChevroletCamaro6.2LV8N/A
2011ChevroletCaprice6.0LV8N/A
2011ChevroletCorvette6.2LV8N/A
2011ChevroletExpress 25006.0LV8N/A
2011ChevroletExpress 35006.0LV8N/A
2011ChevroletSilverado 15006.0LV8N/A
2011ChevroletSilverado 2500 HD6.0LV8N/A
2011ChevroletSilverado 3500 HD6.0LV8N/A
2011ChevroletSuburban 25006.0LV8N/A
2011ChevroletTahoe6.0LV8N/A
2011GMCSavana 25006.0LV8N/A
2011GMCSavana 35006.0LV8N/A
2011GMCSierra 15006.0LV8N/A
2011GMCSierra 2500 HD6.0LV8N/A
2011GMCSierra 3500 HD6.0LV8N/A
2011GMCYukon6.0LV8N/A
2011GMCYukon XL 15006.2LV8N/A
2011GMCYukon XL 25006.0LV8N/A
2010CadillacEscalade6.0LV8N/A
2010CadillacEscalade ESV6.2LV8N/A
2010CadillacEscalade EXT6.2LV8N/A
2010ChevroletCamaro6.2LV8N/A
2010ChevroletCorvette6.2LV8N/A
2010ChevroletExpress 25006.0LV8N/A
2010ChevroletExpress 35006.0LV8N/A
2010ChevroletSilverado 15006.0LV8N/A
2010ChevroletSilverado 2500 HD6.0LV8N/A
2010ChevroletSilverado 3500 HD6.0LV8N/A
2010ChevroletSuburban 25006.0LV8N/A
2010ChevroletTahoe6.0LV8N/A
2010GMCSavana 25006.0LV8N/A
2010GMCSavana 35006.0LV8N/A
2010GMCSierra 15006.0LV8N/A
2010GMCSierra 2500 HD6.0LV8N/A
2010GMCSierra 3500 HD6.0LV8N/A
2010GMCYukon6.0LV8N/A
2010GMCYukon XL 15006.2LV8N/A
2010GMCYukon XL 25006.0LV8N/A
2009CadillacEscalade6.0LV8N/A
2009CadillacEscalade ESV6.2LV8N/A
2009CadillacEscalade EXT6.2LV8N/A
2009ChevroletAvalanche6.0LV8N/A
2009ChevroletCorvette6.2LV8N/A
2009ChevroletExpress 25006.0LV8N/A
2009ChevroletExpress 35006.0LV8N/A
2009ChevroletSilverado 15006.0LV8N/A
2009ChevroletSilverado 2500 HD6.0LV8N/A
2009ChevroletSilverado 3500 HD6.0LV8N/A
2009ChevroletSuburban 15006.0LV8N/A
2009ChevroletSuburban 25006.0LV8N/A
2009ChevroletTahoe6.0LV8N/A
2009ChevroletTrailblazer6.0LV8N/A
2009GMCSavana 25006.0LV8N/A
2009GMCSavana 35006.0LV8N/A
2009GMCSierra 15006.0LV8N/A
2009GMCSierra 2500 HD6.0LV8N/A
2009GMCSierra 3500 HD6.0LV8N/A
2009GMCYukon6.0LV8N/A
2009GMCYukon XL 15006.0LV8N/A
2009GMCYukon XL 25006.0LV8N/A
2009HummerH26.2LV8N/A
2009PontiacG86.0LV8N/A
2009Saab9-7x6.0LV8N/A
2008CadillacEscalade6.2LV8N/A
2008CadillacEscalade ESV6.2LV8N/A
2008CadillacEscalade EXT6.2LV8N/A
2008ChevroletAvalanche6.0LV8N/A
2008ChevroletCorvette6.2LV8N/A
2008ChevroletExpress 25006.0LV8N/A
2008ChevroletExpress 35006.0LV8N/A
2008ChevroletSilverado 15006.0LV8N/A
2008ChevroletSilverado 2500 HD6.0LV8N/A
2008ChevroletSilverado 3500 HD6.0LV8N/A
2008ChevroletSuburban 15006.0LV8N/A
2008ChevroletSuburban 25006.0LV8N/A
2008ChevroletTahoe6.0LV8N/A
2008ChevroletTrailblazer6.0LV8N/A
2008GMCSavana 25006.0LV8N/A
2008GMCSavana 35006.0LV8N/A
2008GMCSierra 15006.0LV8N/A
2008GMCSierra 2500 HD6.0LV8N/A
2008GMCSierra 3500 HD6.0LV8N/A
2008GMCYukon6.0LV8N/A
2008GMCYukon XL 15006.0LV8N/A
2008GMCYukon XL 25006.0LV8N/A
2008HummerH26.2LV8N/A
2008PontiacG86.0LV8N/A
2008Saab9-7x6.0LV8N/A
2007CadillacCTS6.0LV8N/A
2007CadillacEscalade6.2LV8N/A
2007CadillacEscalade ESV6.2LV8N/A
2007CadillacEscalade EXT6.2LV8N/A
2007ChevroletAvalanche6.0LV8N/A
2007ChevroletCorvette6.0LV8N/A
2007ChevroletExpress 25006.0LV8N/A
2007ChevroletExpress 35006.0LV8N/A
2007ChevroletSilverado 15006.0LV8N/A
2007ChevroletSilverado 1500 Classic6.0LV8N/A
2007ChevroletSilverado 1500 HD Classic6.0LV8N/A
2007ChevroletSilverado 2500 HD6.0LV8N/A
2007ChevroletSilverado 2500 HD Classic6.0LV8N/A
2007ChevroletSilverado 3500 Classic6.0LV8N/A
2007ChevroletSilverado 3500 HD6.0LV8N/A
2007ChevroletSuburban 15006.0LV8N/A
2007ChevroletSuburban 25006.0LV8N/A
2007ChevroletTrailblazer6.0LV8N/A
2007GMCSavana 25006.0LV8N/A
2007GMCSavana 35006.0LV8N/A
2007GMCSierra 15006.0LV8N/A
2007GMCSierra 1500 Classic6.0LV8N/A
2007GMCSierra 1500 HD Classic6.0LV8N/A
2007GMCSierra 2500 HD6.0LV8N/A
2007GMCSierra 2500 HD Classic6.0LV8N/A
2007GMCSierra 3500 Classic6.0LV8N/A
2007GMCSierra 3500 HD6.0LV8N/A
2007GMCYukon6.2LV8N/A
2007GMCYukon XL 15006.0LV8N/A
2007GMCYukon XL 25006.0LV8N/A
2007HummerH26.0LV8N/A
2006CadillacCTS6.0LV8N/A
2006CadillacEscalade6.0LV8N/A
2006CadillacEscalade ESV6.0LV8N/A
2006CadillacEscalade EXT6.0LV8N/A
2006ChevroletCorvette6.0LV8N/A
2006ChevroletExpress 25006.0LV8N/A
2006ChevroletExpress 35006.0LV8N/A
2006ChevroletSilverado 15006.0LV8N/A
2006ChevroletSilverado 1500 HD6.0LV8N/A
2006ChevroletSilverado 2500 HD6.0LV8N/A
2006ChevroletSilverado 35006.0LV8N/A
2006ChevroletSSR6.0LV8N/A
2006ChevroletSuburban 15006.0LV8N/A
2006ChevroletSuburban 25006.0LV8N/A
2006ChevroletTrailblazer6.0LV8N/A
2006GMCSavana 25006.0LV8N/A
2006GMCSavana 35006.0LV8N/A
2006GMCSierra 15006.0LV8N/A
2006GMCSierra 1500 HD6.0LV8N/A
2006GMCSierra 2500 HD6.0LV8N/A
2006GMCSierra 35006.0LV8N/A
2006GMCYukon6.0LV8N/A
2006GMCYukon XL 15006.0LV8N/A
2006GMCYukon XL 25006.0LV8N/A
2006HummerH26.0LV8N/A
2006PontiacGTO6.0LV8N/A
2005CadillacEscalade6.0LV8N/A
2005CadillacEscalade ESV6.0LV8N/A
2005CadillacEscalade EXT6.0LV8N/A
2005ChevroletCorvette6.0LV8N/A
2005ChevroletExpress 25006.0LV8N/A
2005ChevroletExpress 35006.0LV8N/A
2005ChevroletSilverado 15006.0LV8N/A
2005ChevroletSilverado 1500 HD6.0LV8N/A
2005ChevroletSilverado 2500 HD6.0LV8N/A
2005ChevroletSilverado 35006.0LV8N/A
2005ChevroletSSR6.0LV8N/A
2005ChevroletSuburban 25006.0LV8N/A
2005GMCSavana 25006.0LV8N/A
2005GMCSavana 35006.0LV8N/A
2005GMCSierra 15006.0LV8N/A
2005GMCSierra 1500 HD6.0LV8N/A
2005GMCSierra 2500 HD6.0LV8N/A
2005GMCSierra 35006.0LV8N/A
2005GMCYukon6.0LV8N/A
2005GMCYukon XL 15006.0LV8N/A
2005GMCYukon XL 25006.0LV8N/A
2005HummerH26.0LV8N/A
2005PontiacGTO6.0LV8N/A
2004CadillacEscalade6.0LV8N/A
2004CadillacEscalade ESV6.0LV8N/A
2004CadillacEscalade EXT6.0LV8N/A
2004ChevroletExpress 25006.0LV8N/A
2004ChevroletExpress 35006.0LV8N/A
2004ChevroletSilverado 15006.0LV8N/A
2004ChevroletSilverado 25006.0LV8N/A
2004ChevroletSilverado 2500 HD6.0LV8N/A
2004ChevroletSilverado 35006.0LV8N/A
2004ChevroletSuburban 25006.0LV8N/A
2004GMCSavana 25006.0LV8N/A
2004GMCSavana 35006.0LV8N/A
2004GMCSierra 15006.0LV8N/A
2004GMCSierra 25006.0LV8N/A
2004GMCSierra 2500 HD6.0LV8N/A
2004GMCSierra 35006.0LV8N/A
2004GMCYukon6.0LV8N/A
2004GMCYukon XL 15006.0LV8N/A
2004GMCYukon XL 25006.0LV8N/A
2004HummerH26.0LV8N/A
2003CadillacEscalade6.0LV8N/A
2003CadillacEscalade ESV6.0LV8N/A
2003CadillacEscalade EXT6.0LV8N/A
2003ChevroletExpress 25006.0LV8N/A
2003ChevroletExpress 35006.0LV8N/A
2003ChevroletSilverado 15006.0LV8N/A
2003ChevroletSilverado 1500 HD6.0LV8N/A
2003ChevroletSilverado 25006.0LV8N/A
2003ChevroletSilverado 2500 HD6.0LV8N/A
2003ChevroletSilverado 35006.0LV8N/A
2003ChevroletSuburban 25006.0LV8N/A
2003GMCSavana 25006.0LV8N/A
2003GMCSavana 35006.0LV8N/A
2003GMCSierra 15006.0LV8N/A
2003GMCSierra 1500 HD6.0LV8N/A
2003GMCSierra 25006.0LV8N/A
2003GMCSierra 2500 HD6.0LV8N/A
2003GMCSierra 35006.0LV8N/A
2003GMCYukon6.0LV8N/A
2003GMCYukon XL 15006.0LV8N/A
2003GMCYukon XL 25006.0LV8N/A
2003HummerH26.0LV8N/A
2002CadillacEscalade6.0LV8N/A
2002CadillacEscalade EXT6.0LV8N/A
2002ChevroletSilverado 1500 HD6.0LV8N/A
2002ChevroletSilverado 25006.0LV8N/A
2002ChevroletSilverado 2500 HD6.0LV8N/A
2002ChevroletSilverado 35006.0LV8N/A
2002ChevroletSuburban 25006.0LV8N/A
2002GMCSierra 15006.0LV8N/A
2002GMCSierra 1500 HD6.0LV8N/A
2002GMCSierra 25006.0LV8N/A
2002GMCSierra 2500 HD6.0LV8N/A
2002GMCSierra 35006.0LV8N/A
2002GMCYukon6.0LV8N/A
2002GMCYukon XL 15006.0LV8N/A
2002GMCYukon XL 25006.0LV8N/A
2001ChevroletSilverado 1500 HD6.0LV8N/A
2001ChevroletSilverado 25006.0LV8N/A
2001ChevroletSilverado 2500 HD6.0LV8N/A
2001ChevroletSilverado 35006.0LV8N/A
2001ChevroletSuburban 25006.0LV8N/A
2001GMCSierra 15006.0LV8N/A
2001GMCSierra 1500 HD6.0LV8N/A
2001GMCSierra 25006.0LV8N/A
2001GMCSierra 2500 HD6.0LV8N/A
2001GMCSierra 35006.0LV8N/A
2001GMCYukon6.0LV8N/A
2001GMCYukon XL 15006.0LV8N/A
2001GMCYukon XL 25006.0LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.