HomeEngine > Gaskets and Sealing SystemsApex AHS4157 Engine Cylinder Head Gasket Set
Part #: AHS4157

Apex AHS4157 Engine Cylinder Head Gasket Set

⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mazda, 3, 5, 6, and Focus
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Reliable Engine Cylinder Head Gasket Set for Ford and Mazda

The Apex AHS4157 engine cylinder head gasket set is designed for precise fitment with select Ford and Mazda models. This gasket set ensures a secure seal between the engine block and cylinder head, maintaining optimal engine performance and preventing leaks.

  • Compatible with Ford Focus and Mazda 3, 5, and 6 models
  • Engine cylinder head gasket set designed for reliable sealing
  • Part number AHS4157 for accurate identification and fitment
  • Manufactured by Apex for consistent quality and durability

Product Details and Compatibility

The Apex AHS4157 gasket set is engineered to meet the specifications required for Ford Focus and Mazda 3, 5, and 6 vehicles. This engine cylinder head gasket set plays a critical role in sealing the combustion chamber, preventing coolant and oil leaks, and maintaining compression. Using the correct gasket set like the AHS4157 helps ensure engine longevity and performance by providing a tight seal under varying operating conditions.

Common Applications and Problem Resolution

  • Prevents engine coolant leaks between the cylinder head and block
  • Stops oil leaks that can cause engine damage
  • Maintains proper engine compression for efficient combustion
  • Addresses engine overheating issues related to gasket failure
  • Helps avoid misfires caused by compromised sealing

Installation Notes and Tips

When installing the Apex AHS4157 engine cylinder head gasket set, ensure the cylinder head and engine block surfaces are clean and free of debris. Follow manufacturer torque specifications for head bolts to avoid gasket damage. It is recommended to inspect the cylinder head for warping or cracks before installation to ensure a proper seal.

Quality Assurance and Warranty

Apex manufactures the AHS4157 gasket set 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 automotive applications.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordFocus2.0LL4N/A
2010FordFocus2.0LL4N/A
2009FordFocus2.0LL4N/A
2008FordFocus2.0LL4N/A
2007FordFocus2.0LL4N/Aexc. Calif.
2007Mazda52.3LL4N/A
2006FordFocus2.0LL4N/Aexc. Calif.
2006Mazda52.3LL4N/A
2005FordFocus2.0LL4N/Aexc. Calif.
2005Mazda32.0LL4N/A
2005Mazda62.3LL4N/Aw/Plastic Valve Cover
2004Mazda32.0LL4N/A
2004Mazda62.3LL4N/Aw/Plastic Valve Cover
2003Mazda62.3LL4N/Aw/Plastic Valve Cover

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