Homeβ€Ί Engine > Hardware, Fasteners and Fittingsβ€Ί Apex AHB329 Engine Cylinder Head Bolt Set
Part #: AHB329

Apex AHB329 Engine Cylinder Head Bolt Set

77 vehicles fit this part
Select your vehicle to confirm fitment
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Fitment: Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, and Saab, 9-7x, Ascender, Bravada, Canyon, Colorado, Envoy, Envoy XL, Envoy XUV, H3, H3T, i-280, i-290, i-350, i-370, Rainier, Trailblazer, and Trailblazer EXT
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Engine Cylinder Head Bolt Set for GM 4.2L Applications

The Apex AHB329 engine cylinder head bolt set is a direct-fit hardware solution for a range of GM and related SUV and truck applications. It is built for buyers replacing cylinder head fasteners during engine service on vehicles such as the Chevrolet Colorado, GMC Canyon, and Hummer H3.

Key Features

  • Engine cylinder head bolt set for hardware replacement during head service
  • Fits 2004-2012 Chevrolet Colorado, N/A
  • Fits 2004-2012 GMC Canyon, N/A
  • Fits 2006-2010 Hummer H3, N/A
  • Fits 2009-2010 Hummer H3T, N/A
  • Fits 2002-2009 Chevrolet Trailblazer, N/A
  • Fits 2002-2009 GMC Envoy, N/A
  • Fits 2005-2009 Saab 9-7x, N/A
  • Part number AHB329 for catalog and service matching

Detailed Description

Apex AHB329 is an engine cylinder head bolt set for vehicles in the GM midsize SUV and truck platform family, including Chevrolet Colorado and GMC Canyon models, plus related applications such as the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Hummer H3. This hardware is used during cylinder head removal and reassembly when the original fasteners are worn, stretched, or no longer suitable for reuse. The AHB329 part number helps streamline ordering and service lookup for technicians and DIY engine rebuild projects.

This part cross-references no listed alternate part numbers in the provided data.

What It Is Used For

  • Replacing cylinder head bolts during engine teardown and rebuild
  • Addressing damaged, corroded, or stretched head fasteners
  • Restoring proper clamping force after head gasket service
  • Supporting repairs after overheating or head removal
  • Matching service parts for Chevrolet Colorado, GMC Canyon, and related GM platforms

Installation Notes and Tips

Follow the factory service procedure for the specific engine and vehicle application before installation. Clean threaded holes, inspect the cylinder head and block surfaces, and verify torque sequence and angle specifications from the service manual. Confirm fitment by year, make, and model before ordering; AHB329 covers multiple applications across 2002-2012 model years.

Quality Assurance

Apex AHB329 is cataloged as an engine hardware replacement part for the listed applications. Verify vehicle fitment against the application list before installation to ensure correct service selection.

This part fits 77 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012ChevroletColorado2.9LL4N/A
2012GMCCanyon2.9LL4N/A
2011ChevroletColorado2.9LL4N/A
2011GMCCanyon2.9LL4N/A
2010ChevroletColorado2.9LL4N/A
2010GMCCanyon2.9LL4N/A
2010HummerH33.7LL5N/A
2010HummerH3T3.7LL5N/A
2009ChevroletColorado2.9LL4N/A
2009ChevroletTrailblazer4.2LL6N/A
2009GMCCanyon2.9LL4N/A
2009GMCEnvoy4.2LL6N/A
2009HummerH33.7LL5N/A
2009HummerH3T3.7LL5N/A
2009Saab9-7x4.2LL6N/A
2008ChevroletColorado2.9LL4N/A
2008ChevroletTrailblazer4.2LL6N/A
2008GMCCanyon2.9LL4N/A
2008GMCEnvoy4.2LL6N/A
2008HummerH33.7LL5N/A
2008IsuzuAscender4.2LL6N/A
2008Isuzui-2902.9LL4N/A
2008Isuzui-3703.7LL5N/A
2008Saab9-7x4.2LL6N/A
2007BuickRainier4.2LL6N/A
2007ChevroletColorado2.9LL4N/A
2007ChevroletTrailblazer4.2LL6N/A
2007GMCCanyon2.9LL4N/A
2007GMCEnvoy4.2LL6N/A
2007HummerH33.7LL5N/A
2007IsuzuAscender4.2LL6N/A
2007Isuzui-2902.9LL4N/A
2007Isuzui-3703.7LL5N/A
2007Saab9-7x4.2LL6N/A
2006BuickRainier4.2LL6N/A
2006ChevroletColorado2.8LL4N/A
2006ChevroletTrailblazer4.2LL6N/A
2006ChevroletTrailblazer EXT4.2LL6N/A
2006GMCCanyon2.8LL4N/A
2006GMCEnvoy4.2LL6N/A
2006GMCEnvoy XL4.2LL6N/A
2006HummerH33.5LL5N/A
2006IsuzuAscender4.2LL6N/A
2006Isuzui-2802.8LL4N/A
2006Isuzui-3503.5LL5N/A
2006Saab9-7x4.2LL6N/A
2005BuickRainier4.2LL6N/A
2005ChevroletColorado2.8LL4N/A
2005ChevroletTrailblazer4.2LL6N/A
2005ChevroletTrailblazer EXT4.2LL6N/A
2005GMCCanyon2.8LL4N/A
2005GMCEnvoy4.2LL6N/A
2005GMCEnvoy XL4.2LL6N/A
2005GMCEnvoy XUV4.2LL6N/A
2005IsuzuAscender4.2LL6N/A
2005Saab9-7x4.2LL6N/A
2004BuickRainier4.2LL6N/A
2004ChevroletColorado2.8LL4N/A
2004ChevroletTrailblazer4.2LL6N/A
2004ChevroletTrailblazer EXT4.2LL6N/A
2004GMCCanyon2.8LL4N/A
2004GMCEnvoy4.2LL6N/A
2004GMCEnvoy XL4.2LL6N/A
2004GMCEnvoy XUV4.2LL6N/A
2004IsuzuAscender4.2LL6N/A
2004OldsmobileBravada4.2LL6N/A
2003ChevroletTrailblazer4.2LL6N/A
2003ChevroletTrailblazer EXT4.2LL6N/A
2003GMCEnvoy4.2LL6N/A
2003GMCEnvoy XL4.2LL6N/A
2003IsuzuAscender4.2LL6N/A
2003OldsmobileBravada4.2LL6N/A
2002ChevroletTrailblazer4.2LL6N/A
2002ChevroletTrailblazer EXT4.2LL6N/A
2002GMCEnvoy4.2LL6N/A
2002GMCEnvoy XL4.2LL6N/A
2002OldsmobileBravada4.2LL6N/A

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