HomeEngine > Gaskets and Sealing SystemsApex AHG373 Engine Cylinder Head Gasket
Part #: AHG373

Apex AHG373 Engine Cylinder Head Gasket

49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Chevrolet, Oldsmobile, and Pontiac, Bonneville, Grand Prix, Impala, LSS, Monte Carlo, Park Avenue, Regal, and Riviera
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Reliable Engine Cylinder Head Gasket for GM Vehicles

The Apex AHG373 engine cylinder head gasket is designed for precise fitment with select Buick, Chevrolet, Oldsmobile, and Pontiac models. This gasket ensures a proper seal between the engine block and cylinder head, maintaining engine performance and preventing leaks.

  • Compatible with Buick Bonneville, Chevrolet Impala, Monte Carlo, and more
  • Part number AHG373 for accurate identification and replacement
  • Engine cylinder head gasket designed for sealing combustion chambers
  • Durable construction to withstand engine heat and pressure
  • Engine gasket suitable for models including Grand Prix, LSS, Park Avenue, Regal, and Riviera

Product Details and Compatibility

The Apex AHG373 engine cylinder head gasket is engineered to meet the specifications required by various General Motors vehicles. It is compatible with Buick Bonneville and Park Avenue, Chevrolet Impala, Monte Carlo, and LSS, Oldsmobile LSS and Regal, as well as Pontiac Grand Prix and Riviera models. This gasket plays a critical role in sealing the combustion chamber, preventing coolant and oil leaks, and maintaining engine compression. Using the correct part number AHG373 ensures proper fit and function within the engine assembly.

Common Applications and Problem Resolution

  • Seals combustion chambers to prevent loss of compression
  • Prevents coolant leaks that can cause engine overheating
  • Stops oil leaks between the cylinder head and engine block
  • Maintains engine performance by ensuring proper sealing
  • Addresses gasket failure symptoms such as white smoke or engine misfire

Installation Notes and Tips

When installing the Apex AHG373 cylinder head gasket, ensure the engine 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 and block for flatness before installation. Proper installation will help maintain engine integrity and prevent premature gasket failure.

Quality Assurance and Warranty

Apex manufactures the AHG373 engine cylinder head gasket to meet industry standards for durability and performance. While specific warranty details are not provided, Apex products typically adhere to quality control processes to ensure reliable operation in compatible Buick, Chevrolet, Oldsmobile, and Pontiac vehicles.

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007PontiacGrand Prix3.8LV6N/A
2006PontiacGrand Prix3.8LV6N/A
2005BuickPark Avenue3.8LV6N/A
2005ChevroletImpala3.8LV6N/A
2005ChevroletMonte Carlo3.8LV6N/A
2005PontiacGrand Prix3.8LV6N/A
2004BuickPark Avenue3.8LV6N/A
2004BuickRegal3.8LV6N/A
2004ChevroletImpala3.8LV6N/A
2004ChevroletMonte Carlo3.8LV6N/A
2004PontiacGrand Prix3.8LV6N/A
2003BuickPark Avenue3.8LV6N/A
2003BuickRegal3.8LV6N/A
2003PontiacBonneville3.8LV6N/A
2003PontiacGrand Prix3.8LV6N/A
2002BuickPark Avenue3.8LV6N/A
2002BuickRegal3.8LV6N/A
2002PontiacBonneville3.8LV6N/A
2002PontiacGrand Prix3.8LV6N/A
2001BuickPark Avenue3.8LV6N/A
2001BuickRegal3.8LV6N/A
2001PontiacBonneville3.8LV6N/A
2001PontiacGrand Prix3.8LV6N/A
2000BuickPark Avenue3.8LV6N/A
2000BuickRegal3.8LV6N/A
2000PontiacBonneville3.8LV6N/A
2000PontiacGrand Prix3.8LV6N/A
1999BuickPark Avenue3.8LV6N/A
1999BuickRegal3.8LV6N/A
1999BuickRiviera3.8LV6N/A
1999OldsmobileLSS3.8LV6N/A
1999PontiacBonneville3.8LV6N/A
1999PontiacGrand Prix3.8LV6N/A
1998BuickPark Avenue3.8LV6N/A
1998BuickRegal3.8LV6N/A
1998BuickRiviera3.8LV6N/A
1998OldsmobileLSS3.8LV6N/A
1998PontiacBonneville3.8LV6N/A
1998PontiacGrand Prix3.8LV6N/A
1997BuickPark Avenue3.8LV6N/A
1997BuickRegal3.8LV6N/A
1997BuickRiviera3.8LV6N/A
1997OldsmobileLSS3.8LV6N/A
1997PontiacBonneville3.8LV6N/A
1997PontiacGrand Prix3.8LV6N/A
1996BuickPark Avenue3.8LV6N/A
1996BuickRiviera3.8LV6N/A
1996OldsmobileLSS3.8LV6N/A
1996PontiacBonneville3.8LV6N/A

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