HomeApex AHS3122 Engine Cylinder Head Gasket Set
Part #: AHS3122

Apex AHS3122 Engine Cylinder Head Gasket Set

⚙️ 74 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chevrolet, GMC, and Hummer, Escalade, Escalade ESV, Escalade EXT, Express 2500, Express 3500, 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, 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, Suburban 1500, Suburban 2500, Yukon, Yukon XL 1500, and Yukon XL 2500
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Reliable Engine Cylinder Head Gasket Set for GM Trucks and SUVs

The Apex AHS3122 engine cylinder head gasket set is designed for a precise fit on select Cadillac, Chevrolet, GMC, and Hummer models. This gasket set ensures proper sealing and engine performance for vehicles such as the Chevrolet Silverado 1500 and GMC Sierra 2500 HD.

  • Compatible with Cadillac Escalade, Chevrolet Silverado, GMC Sierra, Hummer H2, and more
  • Engine cylinder head gasket set designed for reliable sealing and durability
  • Part number AHS3122 for easy identification and replacement
  • Engineered to meet OEM specifications for fit and function
  • Suitable for heavy-duty and light-duty GM trucks and SUVs

Durable Cylinder Head Gasket Set for GM Vehicle Engines

The Apex AHS3122 gasket set is engineered to provide a secure seal between the engine block and cylinder head, preventing coolant, oil, and combustion gases from leaking. This set is compatible with a wide range of GM vehicles, including the Cadillac Escalade EXT, Chevrolet Express 3500, GMC Yukon XL 2500, and Hummer H2. Designed to withstand high temperatures and pressures, this gasket set helps maintain engine integrity and performance over time.

Compatible Vehicles and Applications

  • Cadillac Escalade, Escalade ESV, Escalade EXT
  • Chevrolet Express 2500, Express 3500, Silverado 1500, Silverado 2500 HD, Silverado 3500
  • GMC Sierra 1500, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500
  • Hummer H2
  • GMC Savana 2500, Savana 3500

Installation Notes and Tips

Ensure the engine block and cylinder head surfaces are clean and free of debris before installation. Follow manufacturer torque specifications when tightening cylinder head bolts to avoid gasket damage. It is recommended to replace the gasket set during engine rebuilds or when signs of gasket failure are present, such as coolant leaks or engine overheating.

Quality Assurance and Warranty

The Apex AHS3122 engine cylinder head gasket set is manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details are not provided, Apex products typically undergo rigorous quality control to ensure reliable operation in demanding engine environments.

This part fits 74 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007ChevroletExpress 25006.0LV8N/A
2007ChevroletExpress 35006.0LV8N/A
2007ChevroletSilverado 1500 Classic6.0LV8N/A
2007ChevroletSilverado 1500 HD Classic6.0LV8N/A
2007ChevroletSilverado 2500 HD Classic6.0LV8N/A
2007ChevroletSilverado 3500 Classic6.0LV8N/A
2007GMCSavana 25006.0LV8N/A
2007GMCSavana 35006.0LV8N/A
2007GMCSierra 1500 Classic6.0LV8N/A
2007GMCSierra 1500 HD Classic6.0LV8N/A
2007GMCSierra 2500 HD Classic6.0LV8N/A
2007GMCSierra 3500 Classic6.0LV8N/A
2007HummerH26.0LV8N/A
2006CadillacEscalade6.0LV8N/A
2006CadillacEscalade ESV6.0LV8N/A
2006CadillacEscalade EXT6.0LV8N/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
2006ChevroletSuburban 15006.0LV8N/A
2006ChevroletSuburban 25006.0LV8N/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
2005CadillacEscalade6.0LV8N/A
2005CadillacEscalade ESV6.0LV8N/A
2005CadillacEscalade EXT6.0LV8N/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
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
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

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