HomeEngine > Gaskets and Sealing SystemsApex AMS4390 Engine Intake Manifold Gasket Set - Lower
Part #: AMS4390

Apex AMS4390 Engine Intake Manifold Gasket Set - Lower

Lower
12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 626, Protege, and Protege5
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Reliable Engine Intake Manifold Gasket Set for Mazda Vehicles

The Apex AMS4390 engine intake manifold gasket set is designed specifically for Mazda 626, Protege, and Protege5 models. This gasket set ensures a proper seal between the intake manifold and engine block, helping maintain optimal engine performance and preventing leaks.

  • Compatible with Mazda 626, Protege, and Protege5 models
  • Engine intake manifold gasket set designed for precise fitment
  • Durable materials to withstand engine heat and pressure
  • Part number AMS4390 for easy identification and replacement

Durable and Precise Engine Gasket Solution

The Apex AMS4390 gasket set is engineered to meet the specifications required for Mazda engines, providing a reliable seal that prevents air and coolant leaks. Proper sealing of the intake manifold is critical to maintaining engine efficiency and preventing performance issues. This gasket set is manufactured to fit the intake manifold perfectly, reducing the risk of gasket failure and ensuring consistent engine operation.

Applications and Common Issues Addressed

  • Prevents vacuum leaks that can cause rough idling or stalling
  • Stops coolant leaks that may lead to engine overheating
  • Maintains proper air-fuel mixture for efficient combustion
  • Helps avoid engine misfires related to intake manifold seal failure
  • Reduces the risk of engine performance loss due to gasket wear

Installation Notes and Tips

When installing the Apex AMS4390 gasket set on Mazda 626, Protege, or Protege5 models, ensure the mating surfaces are clean and free of old gasket material or debris. Proper torque specifications should be followed to avoid over-tightening, which can damage the gasket. It is recommended to inspect the intake manifold and surrounding components for wear or damage during installation.

Quality Assurance and Warranty

Apex manufactures the AMS4390 gasket set to meet industry standards for durability and fitment. While specific warranty details are not provided, Apex products typically undergo quality control processes to ensure reliability and performance in automotive applications.

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003MazdaProtege2.0LL4Lower
2003MazdaProtege52.0LL4Lower
2002Mazda6262.0LL4N/A
2002MazdaProtege2.0LL4Lower
2002MazdaProtege52.0LL4Lower
2001Mazda6262.0LL4N/A
2001MazdaProtege2.0LL4Lower
2000Mazda6262.0LL4N/A
2000MazdaProtege1.8LL4Lower
1999Mazda6262.0LL4N/A
1999MazdaProtege1.8LL4Lower
1998Mazda6262.0LL4N/A

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