HomeBelts and Cooling > Gaskets and Sealing SystemsFel-Pro 35284 Engine Coolant Thermostat Seal
Part #: 35284

Fel-Pro 35284 Engine Coolant Thermostat Seal

⚙️ 26 vehicles fit this part
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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: Ford and Mercury, Escort, Focus, Cougar, Contour, and Mystique
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Overview of Fel-Pro Engine Coolant Thermostat Seal 35284

The Fel-Pro 35284 engine coolant thermostat seal is designed to provide a reliable seal for the thermostat housing in select Ford and Mercury vehicles. Engineered with precise dimensions and premium-grade materials, this seal ensures proper coolant flow and temperature regulation for optimal engine performance.

  • Inside diameter options: 1.804 inches (45.8 mm)
  • Thickness: 0.245 inches (6.2 mm)
  • Premium grade material for durability and heat resistance
  • Zero mounting holes for a secure, leak-free fit
  • Compatible with multiple Ford and Mercury models

Detailed Product Description

The Fel-Pro 35284 thermostat seal features an inside diameter of 1.804 inches (45.8 mm) and a thickness of 0.245 inches (6.2 mm), designed to fit precisely within the thermostat housing. Manufactured from premium-grade materials, this seal withstands high temperatures and pressure fluctuations common in engine cooling systems. The absence of mounting holes simplifies installation and reduces potential leak points, ensuring a tight and consistent seal. This part is engineered specifically for use in Ford and Mercury vehicles, including the Contour, Cougar, Escort, Focus, and Mystique models.

Compatible Vehicles and Applications

This engine coolant thermostat seal is compatible with the following vehicles:

  • Ford Contour
  • Ford Cougar
  • Ford Escort
  • Ford Focus
  • Mercury Mystique

It is designed to maintain proper coolant flow and temperature regulation by sealing the thermostat housing, preventing leaks and ensuring engine efficiency.

Common Issues Addressed by Fel-Pro 35284 Seal

  • Prevents coolant leaks around the thermostat housing
  • Maintains consistent engine temperature by ensuring proper thermostat function
  • Reduces risk of engine overheating due to seal failure
  • Eliminates coolant contamination from external debris
  • Helps avoid costly engine damage caused by coolant loss

Installation Notes and Tips

  • Ensure the thermostat housing surface is clean and free of old gasket material before installation
  • Verify the correct orientation of the seal to match the thermostat housing
  • Do not reuse old seals; always replace with a new Fel-Pro 35284 seal
  • Check for proper fitment on Ford and Mercury Contour, Cougar, Escort, Focus, and Mystique models
  • Tighten housing bolts to manufacturer specifications to avoid warping or leaks

Quality Assurance and Warranty

Fel-Pro manufactures the 35284 engine coolant thermostat seal to meet strict quality standards, using premium-grade materials for durability and heat resistance. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship. This seal is engineered to provide reliable performance in the cooling systems of compatible Ford and Mercury vehicles.

This part fits 26 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003FordEscort2.0LL4N/A
2003FordFocus2.0LL4N/A
2002FordEscort2.0LL4N/A
2002FordFocus2.0LL4N/A
2002MercuryCougar2.0LL4N/A
2001FordEscort2.0LL4N/A
2001FordFocus2.0LL4N/A
2001MercuryCougar2.0LL4N/A
2000FordContour2.0LL4N/A
2000FordEscort2.0LL4N/A
2000FordFocus2.0LL4N/A
2000MercuryCougar2.0LL4N/A
2000MercuryMystique2.0LL4N/A
1999FordContour2.0LL4N/A
1999FordEscort2.0LL4N/A
1999MercuryCougar2.0LL4N/A
1999MercuryMystique2.0LL4N/A
1998FordContour2.0LL4N/A
1998FordEscort2.0LL4N/A
1998MercuryMystique2.0LL4N/A
1997FordContour2.0LL4N/A
1997MercuryMystique2.0LL4N/A
1996FordContour2.0LL4N/A
1996MercuryMystique2.0LL4N/A
1995FordContour2.0LL4N/A
1995MercuryMystique2.0LL4N/A

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

This part directly replaces or is cross-referenced with the following part numbers:

1127812561239800798698C31612W700319S300

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.