HomeBelts and Cooling > Gaskets and Sealing SystemsFel-Pro 35778 Engine Coolant Thermostat Housing Seal
Part #: 35778

Fel-Pro 35778 Engine Coolant Thermostat Housing Seal

⚙️ 10 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$9.99Free 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: Hyundai, Santa Fe and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Coolant Thermostat Housing Seal for Hyundai Vehicles

The Fel-Pro 35778 engine coolant thermostat housing seal is designed to provide a precise and durable seal for your Hyundai Santa Fe or Sonata. Engineered with premium-grade materials, this gasket ensures consistent performance and helps maintain optimal engine temperature.

  • Premium grade type for enhanced durability
  • Thickness options of 0.180 and 4.5 for accurate fitment
  • Specifically compatible with Hyundai Santa Fe and Sonata models
  • Part number 35778 for easy identification and replacement
  • Zero mounting hole quantity for a streamlined installation process

Product Details and Specifications

The Fel-Pro 35778 thermostat housing seal is crafted to meet strict OEM standards, ensuring a reliable seal between the thermostat housing and engine block. With thickness measurements of 0.180 and 4.5, this gasket accommodates precise sealing requirements to prevent coolant leaks and maintain engine efficiency. The premium grade material resists heat and pressure, making it suitable for the demanding conditions within the cooling system of Hyundai Santa Fe and Sonata vehicles.

Compatible Hyundai Models and Applications

This engine coolant thermostat housing seal is compatible with Hyundai Santa Fe and Sonata models, providing a direct replacement for worn or damaged seals. Using the correct Fel-Pro 35778 seal helps maintain proper coolant flow and engine temperature regulation, which is critical for preventing overheating and ensuring engine longevity.

  • Prevents coolant leaks at the thermostat housing
  • Helps maintain consistent engine operating temperature
  • Reduces risk of engine overheating
  • Eliminates coolant contamination from external sources
  • Supports efficient engine cooling system performance

Installation Notes and Tips

When installing the Fel-Pro 35778 thermostat housing seal, ensure the mating surfaces are clean and free of old gasket material or debris. Proper surface preparation is essential for achieving a secure seal. Since this seal has zero mounting holes, align it carefully with the thermostat housing to avoid misplacement. Follow vehicle-specific torque specifications for the thermostat housing bolts to prevent damage or leaks.

Quality Assurance and Warranty Information

Fel-Pro gaskets are manufactured to meet or exceed OEM specifications, providing reliable sealing solutions for automotive cooling systems. The 35778 engine coolant thermostat housing seal undergoes rigorous quality control to ensure consistent thickness and material integrity. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship.

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006HyundaiSanta Fe2.4LL4N/A
2005HyundaiSanta Fe2.4LL4N/A
2005HyundaiSonata2.4LL4N/A
2004HyundaiSanta Fe2.4LL4N/A
2004HyundaiSonata2.4LL4N/A
2003HyundaiSanta Fe2.4LL4N/A
2003HyundaiSonata2.4LL4N/A
2002HyundaiSanta Fe2.4LL4N/A
2002HyundaiSonata2.4LL4N/A
2001HyundaiSanta Fe2.4LL4N/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:

1140112562338150C32095WO8671

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