Apex AHG1144 Engine Cylinder Head Gasket

Apex AHG1144 Cylinder Head Gasket

The Apex AHG1144 engine cylinder head gasket is a direct-fit sealing component for select GM and Isuzu applications. It is built for 2007-2012 Chevrolet Colorado, 2007-2012 GMC Canyon, 2007-2010 Hummer H3, 2009-2010 Hummer H3T, and 2007-2008 Isuzu i-370 models.

Key Features

• Engine cylinder head gasket for sealing the combustion chamber and coolant/oil passages
• Fits 2007-2012 Chevrolet Colorado and 2007-2012 GMC Canyon
• Fits 2007-2010 Hummer H3 and 2009-2010 Hummer H3T
• Fits 2007-2008 Isuzu i-370
• Part number AHG1144 for catalog and service verification

Detailed Description

Use the Apex AHG1144 when replacing a failed cylinder head gasket on the listed vehicles. This gasket is specified for the engine sealing interface between the cylinder head and engine block, helping restore compression sealing and fluid separation after head service. For buyers searching for a Chevrolet Colorado head gasket, GMC Canyon cylinder head gasket, or Hummer H3 engine gasket, AHG1144 provides the correct application match for the confirmed fitment range.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Compression loss from a leaking head gasket
• Coolant mixing with engine oil
• External coolant seepage at the cylinder head joint
• Combustion gas leakage into the cooling system
• Overheating caused by sealing failure

Installation Notes and Tips

Inspect the cylinder head and engine block mating surfaces before installation. Clean all sealing surfaces thoroughly, verify flatness, and follow the vehicle service manual for torque sequence and torque-angle procedures. Replace related engine seals and fasteners only when specified by the service procedure.

Quality Assurance

Apex AHG1144 is cataloged for the confirmed vehicle applications listed above and should be matched by year, make, model, and engine service requirements before installation.