HomeEngine > Gaskets and Sealing SystemsApex AHG423 Engine Cylinder Head Gasket
Part #: AHG423

Apex AHG423 Engine Cylinder Head Gasket

105 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$25.38Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Mazda, and Mercury, Aerostar, B2300, B2500, Bobcat, Capri, Cougar, Courier, Fairmont, LTD, Marquis, Mustang, Pinto, Ranger, Thunderbird, and Zephyr
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Cylinder Head Gasket for Ford, Mazda, and Mercury

The Apex AHG423 engine cylinder head gasket is designed to provide a secure seal for various Ford, Mazda, and Mercury vehicles. Engineered to maintain optimal compression and prevent leaks, this gasket supports engine performance and longevity.

  • Compatible with Ford Aerostar, Mustang, Ranger, Thunderbird, and other models
  • Fits Mazda B2300, B2500, and Mercury Marquis, Cougar, and Zephyr
  • Durable construction to withstand high temperatures and pressures
  • Precision fit to ensure proper sealing and engine efficiency
  • Part number AHG423 for easy identification and replacement

Product Details and Compatibility

The Apex AHG423 engine cylinder head gasket is specifically designed for use in a range of Ford, Mazda, and Mercury vehicles, including the Ford Aerostar, B2300, B2500, Bobcat, Capri, Cougar, Courier, Fairmont, LTD, Marquis, Mustang, Pinto, Ranger, Thunderbird, and Zephyr models. This gasket ensures a tight seal between the engine block and cylinder head, preventing coolant and oil leaks while maintaining engine compression. The part number AHG423 corresponds to this exact fitment, making it a reliable choice for engine repairs and rebuilds.

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
  • Helps maintain engine performance and fuel efficiency
  • Addresses head gasket failure symptoms such as white smoke or engine misfires

Installation Notes and Tips

When installing the Apex AHG423 cylinder head gasket, ensure the engine block and cylinder head surfaces are clean and free of debris. Follow manufacturer torque specifications for head bolts to avoid warping or gasket damage. It is recommended to inspect the cylinder head for cracks or warping before installation to ensure a proper seal. Using the correct part number AHG423 guarantees compatibility with the specified Ford, Mazda, and Mercury models.

Quality Assurance and Warranty

Apex manufactures the AHG423 cylinder head gasket to meet industry standards for durability and performance. While specific warranty details are not provided, Apex products typically undergo quality control processes to ensure reliability in automotive applications. Using this gasket helps maintain engine integrity and supports long-term vehicle operation.

This part fits 105 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2001FordRanger2.5LL4N/A
2001MazdaB25002.5LL4N/A
2000FordRanger2.5LL4N/A
2000MazdaB25002.5LL4N/A
1999FordRanger2.5LL4N/A
1999MazdaB25002.5LL4N/A
1998FordRanger2.5LL4N/A
1998MazdaB25002.5LL4N/A
1997FordRanger2.3LL4N/A
1997MazdaB23002.3LL4N/A
1996FordRanger2.3LL4N/A
1996MazdaB23002.3LL4N/A
1995FordRanger2.3LL4N/A
1995MazdaB23002.3LL4N/A
1994FordRanger2.3LL4N/A
1994MazdaB23002.3LL4N/A
1993FordMustang2.3LL4N/A
1993FordRanger2.3LL4N/A
1992FordMustang2.3LL4N/A
1992FordRanger2.3LL4N/A
1991FordMustang2.3LL4N/A
1991FordRanger2.3LL4N/A
1990FordMustang2.3LL4N/A
1990FordRanger2.3LL4N/A
1989FordMustang2.3LL4N/A
1989FordRanger2.3LL4N/A
1988FordMustang2.3LL4N/A
1988FordRanger2.3LL4N/A
1988FordThunderbird2.3LL4N/A
1987FordAerostar2.3LL4N/A
1987FordMustang2.3LL4N/A
1987FordRanger2.3LL4GASN/A
1987FordThunderbird2.3LL4N/A
1986FordAerostar2.3LL4N/A
1986FordLTD2.3LL4N/A
1986FordMustang2.3LL4N/A
1986FordRanger2.3LL4GASN/A
1986FordThunderbird2.3LL4N/A
1986MercuryCapri2.3LL4N/A
1986MercuryCougar2.3LL4N/A
1986MercuryMarquis2.3LL4N/A
1985FordLTD2.3LL4N/A
1985FordMustang2.3LL4N/A
1985FordRanger2.3LL4GASN/A
1985FordThunderbird2.3LL4N/A
1985MercuryCapri2.3LL4N/A
1985MercuryCougar2.3LL4N/A
1985MercuryMarquis2.3LL4N/A
1984FordLTD2.3LL4N/A
1984FordMustang2.3LL4N/A
1984FordRanger2.3LL4N/A
1984FordThunderbird2.3LL4N/A
1984MercuryCapri2.3LL4N/A
1984MercuryCougar2.3LL4N/A
1984MercuryMarquis2.3LL4N/A
1983FordFairmont2.3LL4N/A
1983FordLTD2.3LL4N/A
1983FordMustang2.3LL4N/A
1983FordRanger2.3LL4N/A
1983FordThunderbird2.3LL4N/A
1983MercuryCapri2.3LL4N/A
1983MercuryMarquis2.3LL4N/A
1983MercuryZephyr2.3LL4N/A
1982FordCourier2.3LL4N/A
1982FordFairmont2.3LL4N/A
1982FordMustang2.3LL4N/A
1982MercuryCapri2.3LL4N/A
1982MercuryCougar2.3LL4N/A
1982MercuryZephyr2.3LL4N/A
1981FordCourier2.3LL4N/A
1981FordFairmont2.3LL4N/A
1981FordMustang2.3LL4N/A
1981MercuryCapri2.3LL4N/A
1981MercuryCougar2.3LL4N/A
1981MercuryZephyr2.3LL4N/A
1980FordCourier2.3LL4N/A
1980FordFairmont2.3LL4N/A
1980FordMustang2.3LL4N/A
1980FordPinto2.3LL4N/A
1980MercuryBobcat2.3LL4N/A
1980MercuryCapri2.3LL4N/A
1980MercuryZephyr2.3LL4N/A
1979FordCourier2.3LL4N/A
1979FordFairmont2.3LL4N/A
1979FordMustang2.3LL4N/A
1979FordPinto2.3LL4N/A
1979MercuryBobcat2.3LL4N/A
1979MercuryCapri2.3LL4N/A
1979MercuryZephyr2.3LL4N/A
1978FordCourier2.3LL4N/A
1978FordFairmont2.3LL4N/A
1978FordPinto2.3LL4N/A
1978MercuryBobcat2.3LL4N/A
1978MercuryZephyr2.3LL4N/A
1977FordCourier2.3LL4N/A
1977FordPinto2.3LL4N/A
1977MercuryBobcat2.3LL4N/A
1977MercuryCapri2.3LL4N/A
1976FordPinto2.3LL4N/A
1976MercuryBobcat2.3LL4N/A
1976MercuryCapri2.3LL4N/A
1975FordPinto2.3LL4N/A
1975MercuryBobcat2.3LL4N/A
1975MercuryCapri2.3LL4N/A
1974FordPinto2.3LL4N/A

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