Fel-Pro 35522 Engine Coolant Thermostat Seal

Brand Fel-Pro 35522
Fits Mazda · 15 vehicles

Premium grade. Application-specific materials deliver dependable sealing performance.

Thermostat seal. Built for engine coolant sealing applications.

Fel-Pro gaskets. Trusted by professionals for sealing durability.

Cross-references MAHLE B45661, B61P15106 and B61P15106A for the same application. See all 3.

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Fel-Pro 35522 Engine Coolant Thermostat Seal

Fel-Pro 35522 is a premium engine coolant thermostat seal built for precise sealing in cooling system service. It is made for 1990-1997 and 1999-2005 Mazda Miata applications, where a reliable thermostat seal helps maintain proper coolant control and reduce seepage at the thermostat housing.

Key Features

  • Premium grade thermostat seal for cooling system service
  • Application-specific sealing material for a proper fit
  • Supports 100% vehicle sealing when installed on the correct application
  • Direct fit for Mazda Miata models listed below
  • Fel-Pro part number 35522 for easy identification

Detailed Description

Fel-Pro 35522 is an engine coolant thermostat seal engineered for Mazda Miata cooling system repairs. Fel-Pro uses application-specific materials to match the sealing demands of the thermostat housing, helping restore a tight seal where coolant flow is controlled. This part is a practical choice for service work on 1990-1997 Mazda Miata and 1999-2005 Mazda Miata models, and it cross-references MAHLE B45661 for the same application. If you are replacing a thermostat seal on a Mazda Miata, Fel-Pro 35522 provides the sealing-focused construction expected in professional engine cooling repairs.

Fitment

  • Fits 1999-2005 Mazda Miata, N/A
  • Fits 1990-1997 Mazda Miata, N/A

What It Helps Address

  • Coolant seepage at the thermostat housing
  • Loss of seal integrity during thermostat service
  • Coolant leaks after cooling system maintenance
  • Improper sealing from worn or flattened thermostat seals
  • Repeat repairs caused by poor gasket material selection

Installation Notes and Tips

Inspect the thermostat housing and mating surfaces before installation. Remove old seal material, clean the sealing surfaces thoroughly, and verify the thermostat and housing are correct for the vehicle. Install Fel-Pro 35522 on the specified Mazda Miata application and follow the service procedure for coolant refill and bleed steps.

Quality Assurance

Fel-Pro states that its gaskets are built for complete vehicle sealing using application-specific materials, with durability and performance trusted by professionals. Part number 35522 is a premium-grade sealing component for cooling system service.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005MazdaMiata1.8LL4N/A
2004MazdaMiata1.8LL4N/A
2003MazdaMiata1.8LL4N/A
2002MazdaMiata1.8LL4N/A
2001MazdaMiata1.8LL4N/A
2000MazdaMiata1.8LL4N/A
1999MazdaMiata1.8LL4N/A
1997MazdaMiata1.8LL4N/A
1996MazdaMiata1.8LL4N/A
1995MazdaMiata1.8LL4N/A
1994MazdaMiata1.8LL4N/A
1993MazdaMiata1.6LL4N/A
1992MazdaMiata1.6LL4N/A
1991MazdaMiata1.6LL4N/A
1990MazdaMiata1.6LL4N/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MAHLE — B45661B61P15106B61P15106A