HomeBelts and Cooling > Gaskets and Sealing SystemsFel-Pro 35555 Engine Coolant Thermostat O-Ring
Part #: 35555

Fel-Pro 35555 Engine Coolant Thermostat O-Ring

⚙️ 241 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Kia, Lexus, Hyundai, Toyota, Chrysler, Dodge, Mitsubishi, and Mazda, Rondo, Magentis, Optima, Sportage, SC430, Santa Fe, Tucson, GX470, 4Runner, Sequoia, Tundra, Tiburon, GS430, LX470, Land Cruiser, Amanti, Sorento, LS430, Sebring, Stratus, Sonata, XG350, Sedona, Eclipse, Galant, Montero Sport, Cirrus, Avenger, GS400, LS400, SC400, 3000GT, Montero, 929, MPV, and Diamante
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Reliable Engine Coolant Thermostat O-Ring for Select Vehicles

The Fel-Pro 35555 Engine Coolant Thermostat O-Ring is designed to provide a precise seal for your vehicle's thermostat housing. Engineered to meet the demands of various Chrysler, Dodge, Hyundai, Kia, Lexus, Mazda, Mitsubishi, and Toyota models, this premium-grade O-ring ensures consistent performance and durability.

  • Premium grade black O-ring with high-quality material composition
  • Inside diameter of 2.365 inches for accurate fitment
  • Thickness of 0.155 inches for reliable sealing
  • Outside diameter of 2.675 inches to match OEM specifications
  • Compatible with multiple makes and models including Toyota 4Runner, Lexus GS400, and Dodge Avenger

Detailed Product Description and Specifications

The Fel-Pro 35555 O-ring is manufactured to precise dimensions, featuring a 2.365-inch inside diameter, 0.155-inch thickness, and 2.675-inch outside diameter. Its black color indicates the use of durable sealing material suitable for engine coolant thermostat applications. This O-ring is designed to maintain a tight seal under varying temperature and pressure conditions, preventing coolant leaks and ensuring optimal engine temperature regulation. The premium grade construction supports long-term reliability in demanding automotive environments.

Compatible Vehicles and Applications

This engine coolant thermostat O-ring is compatible with a wide range of vehicles, including but not limited to:

  • Chrysler models such as Sebring and Cirrus
  • Dodge vehicles including Avenger and Stratus
  • Hyundai models like Sonata and Tucson
  • Kia vehicles including Optima and Sportage
  • Lexus GS400, GS430, SC400, SC430, LS400, LS430, GX470, LX470
  • Mazda MPV and XG350
  • Mitsubishi 3000GT, Eclipse, Diamante, Galant, Montero, Montero Sport
  • Toyota 4Runner, Land Cruiser, Sequoia, Tundra

Common Issues Addressed by This O-Ring

  • Prevents coolant leaks at the thermostat housing
  • Maintains proper engine temperature regulation
  • Eliminates coolant contamination and pressure loss
  • Reduces risk of engine overheating due to seal failure
  • Ensures consistent thermostat operation and longevity

Installation Notes and Tips

  • Ensure the thermostat housing surface is clean and free of debris before installation
  • Lubricate the O-ring lightly with coolant or appropriate lubricant to ease installation
  • Verify the O-ring dimensions match the original part to avoid leaks
  • Do not stretch or twist the O-ring during installation to maintain integrity
  • Inspect the thermostat housing for damage or warping before reassembly

Quality Assurance and Warranty Information

Fel-Pro 35555 O-rings are manufactured to meet strict quality standards for automotive sealing components. The premium grade material and precise dimensions ensure reliable performance in engine coolant thermostat applications. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship. Always refer to the vehicle manufacturer’s guidelines and Fel-Pro documentation for warranty coverage.

This part fits 241 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012KiaRondo2.7LV6N/A
2011KiaRondo2.7LV6N/A
2010KiaMagentis2.7LV6N/A
2010KiaOptima2.7LV6N/A
2010KiaRondo2.7LV6N/A
2010KiaSportage2.7LV6N/A
2010LexusSC4304.3LV8N/A
2009HyundaiSanta Fe2.7LV6N/A
2009HyundaiTucson2.7LV6N/A
2009KiaMagentis2.7LV6N/A
2009KiaOptima2.7LV6N/A
2009KiaRondo2.7LV6N/A
2009KiaSportage2.7LV6N/A
2009LexusGX4704.7LV8N/A
2009LexusSC4304.3LV8N/A
2009Toyota4Runner4.7LV8N/A
2009ToyotaSequoia4.7LV8N/A
2009ToyotaTundra4.7LV8N/A
2008HyundaiSanta Fe2.7LV6N/A
2008HyundaiTiburon2.7LV6N/A
2008HyundaiTucson2.7LV6N/A
2008KiaMagentis2.7LV6N/A
2008KiaOptima2.7LV6N/A
2008KiaRondo2.7LV6N/A
2008KiaSportage2.7LV6N/A
2008LexusGX4704.7LV8N/A
2008LexusSC4304.3LV8N/A
2008Toyota4Runner4.7LV8N/A
2008ToyotaSequoia4.7LV8N/A
2008ToyotaTundra4.7LV8N/A
2007HyundaiSanta Fe2.7LV6N/A
2007HyundaiTiburon2.7LV6N/A
2007HyundaiTucson2.7LV6N/A
2007KiaMagentis2.7LV6N/A
2007KiaOptima2.7LV6N/A
2007KiaRondo2.7LV6N/A
2007KiaSportage2.7LV6N/A
2007LexusGS4304.3LV8N/A
2007LexusGX4704.7LV8N/A
2007LexusLX4704.7LV8N/A
2007LexusSC4304.3LV8N/A
2007Toyota4Runner4.7LV8N/A
2007ToyotaLand Cruiser4.7LV8N/A
2007ToyotaSequoia4.7LV8N/A
2007ToyotaTundra4.7LV8N/A
2006HyundaiSanta Fe2.7LV6N/A
2006HyundaiSanta Fe3.5LV6N/A
2006HyundaiTiburon2.7LV6N/A
2006HyundaiTucson2.7LV6N/A
2006KiaAmanti3.5LV6N/A
2006KiaMagentis2.7LV6N/A
2006KiaOptima2.7LV6N/A
2006KiaSorento3.5LV6N/A
2006KiaSportage2.7LV6N/A
2006LexusGS4304.3LV8N/A
2006LexusGX4704.7LV8N/A
2006LexusLS4304.3LV8N/A
2006LexusLX4704.7LV8N/A
2006LexusSC4304.3LV8N/A
2006Toyota4Runner4.7LV8N/A
2006ToyotaLand Cruiser4.7LV8N/A
2006ToyotaSequoia4.7LV8N/A
2006ToyotaTundra4.7LV8N/A
2005ChryslerSebring3.0LV6N/A
2005DodgeStratus3.0LV6N/A
2005HyundaiSanta Fe2.7LV6N/A
2005HyundaiSanta Fe3.5LV6N/A
2005HyundaiSonata2.7LV6N/A
2005HyundaiTiburon2.7LV6N/A
2005HyundaiTucson2.7LV6N/A
2005HyundaiXG3503.5LV6N/A
2005KiaAmanti3.5LV6N/A
2005KiaMagentis2.7LV6N/A
2005KiaOptima2.7LV6N/A
2005KiaSedona3.5LV6N/A
2005KiaSorento3.5LV6N/A
2005KiaSportage2.7LV6N/A
2005LexusGS4304.3LV8N/A
2005LexusGX4704.7LV8N/A
2005LexusLS4304.3LV8N/A
2005LexusLX4704.7LV8N/A
2005LexusSC4304.3LV8N/A
2005MitsubishiEclipse3.0LV6N/A
2005Toyota4Runner4.7LV8N/A
2005ToyotaLand Cruiser4.7LV8N/A
2005ToyotaSequoia4.7LV8N/A
2005ToyotaTundra4.7LV8N/A
2004ChryslerSebring3.0LV6N/A
2004DodgeStratus3.0LV6N/A
2004HyundaiSanta Fe2.7LV6N/A
2004HyundaiSanta Fe3.5LV6N/A
2004HyundaiSonata2.7LV6N/A
2004HyundaiTiburon2.7LV6N/A
2004HyundaiXG3503.5LV6N/A
2004KiaAmanti3.5LV6N/A
2004KiaMagentis2.7LV6N/A
2004KiaOptima2.7LV6N/A
2004KiaSedona3.5LV6N/A
2004KiaSorento3.5LV6N/A
2004LexusGS4304.3LV8N/A
2004LexusGX4704.7LV8N/A
2004LexusLS4304.3LV8N/A
2004LexusLX4704.7LV8N/A
2004LexusSC4304.3LV8N/A
2004MitsubishiEclipse3.0LV6N/A
2004Toyota4Runner4.7LV8N/A
2004ToyotaLand Cruiser4.7LV8N/A
2004ToyotaSequoia4.7LV8N/A
2004ToyotaTundra4.7LV8N/A
2003ChryslerSebring3.0LV6N/A
2003DodgeStratus3.0LV6N/A
2003HyundaiSanta Fe2.7LV6N/A
2003HyundaiSanta Fe3.5LV6N/A
2003HyundaiSonata2.7LV6N/A
2003HyundaiTiburon2.7LV6N/A
2003HyundaiXG3503.5LV6N/A
2003KiaMagentis2.7LV6N/A
2003KiaOptima2.7LV6N/A
2003KiaSedona3.5LV6N/A
2003KiaSorento3.5LV6N/A
2003LexusGS4304.3LV8N/A
2003LexusGX4704.7LV8N/A
2003LexusLS4304.3LV8N/A
2003LexusLX4704.7LV8N/A
2003LexusSC4304.3LV8N/A
2003MitsubishiEclipse3.0LV6N/A
2003MitsubishiGalant3.0LV6N/A
2003MitsubishiMontero Sport3.0LV6N/A
2003Toyota4Runner4.7LV8N/A
2003ToyotaLand Cruiser4.7LV8N/A
2003ToyotaSequoia4.7LV8N/A
2003ToyotaTundra4.7LV8N/A
2002ChryslerSebring3.0LV6N/A
2002DodgeStratus3.0LV6N/A
2002HyundaiSanta Fe2.7LV6N/A
2002HyundaiSonata2.7LV6N/A
2002HyundaiXG3503.5LV6N/A
2002KiaMagentis2.7LV6N/A
2002KiaOptima2.7LV6N/A
2002KiaSedona3.5LV6N/A
2002LexusGS4304.3LV8N/A
2002LexusLS4304.3LV8N/A
2002LexusLX4704.7LV8N/A
2002LexusSC4304.3LV8N/A
2002MitsubishiEclipse3.0LV6N/A
2002MitsubishiGalant3.0LV6N/A
2002MitsubishiMontero Sport3.0LV6N/A
2002ToyotaLand Cruiser4.7LV8N/A
2002ToyotaSequoia4.7LV8N/A
2002ToyotaTundra4.7LV8N/A
2001ChryslerSebring3.0LV6N/A
2001DodgeStratus3.0LV6N/A
2001HyundaiSanta Fe2.7LV6N/A
2001LexusGS4304.3LV8N/A
2001LexusLS4304.3LV8N/A
2001LexusLX4704.7LV8N/A
2001MitsubishiEclipse3.0LV6N/A
2001MitsubishiGalant3.0LV6N/A
2001MitsubishiMontero Sport3.0LV6N/A
2001ToyotaLand Cruiser4.7LV8N/A
2001ToyotaSequoia4.7LV8N/A
2001ToyotaTundra4.7LV8N/A
2000ChryslerCirrus2.5LV6N/A
2000ChryslerSebring2.5LV6N/A
2000DodgeAvenger2.5LV6N/A
2000DodgeStratus2.5LV6N/A
2000LexusGS4004.0LV8N/A
2000LexusLS4004.0LV8N/A
2000LexusLX4704.7LV8N/A
2000LexusSC4004.0LV8N/A
2000MitsubishiEclipse3.0LV6N/A
2000MitsubishiGalant3.0LV6N/A
2000MitsubishiMontero Sport3.0LV6N/A
2000ToyotaLand Cruiser4.7LV8N/A
2000ToyotaTundra4.7LV8N/A
1999ChryslerCirrus2.5LV6N/A
1999ChryslerSebring2.5LV6N/A
1999DodgeAvenger2.5LV6N/A
1999DodgeStratus2.5LV6N/A
1999LexusGS4004.0LV8N/A
1999LexusLS4004.0LV8N/A
1999LexusLX4704.7LV8N/A
1999LexusSC4004.0LV8N/A
1999Mitsubishi3000GT3.0LV6N/A
1999MitsubishiGalant3.0LV6N/A
1999MitsubishiMontero Sport3.0LV6N/A
1999ToyotaLand Cruiser4.7LV8N/A
1998ChryslerCirrus2.5LV6N/A
1998ChryslerSebring2.5LV6N/A
1998DodgeAvenger2.5LV6N/A
1998DodgeStratus2.5LV6N/A
1998LexusGS4004.0LV8N/A
1998LexusLS4004.0LV8N/A
1998LexusLX4704.7LV8N/A
1998LexusSC4004.0LV8N/A
1998Mitsubishi3000GT3.0LV6N/A
1998MitsubishiMontero Sport3.0LV6N/A
1998ToyotaLand Cruiser4.7LV8N/A
1997ChryslerCirrus2.5LV6N/A
1997ChryslerSebring2.5LV6N/A
1997DodgeAvenger2.5LV6N/A
1997DodgeStratus2.5LV6N/A
1997LexusLS4004.0LV8N/A
1997LexusSC4004.0LV8N/A
1997Mitsubishi3000GT3.0LV6N/A
1997MitsubishiMontero Sport3.0LV6N/A
1996ChryslerCirrus2.5LV6N/A
1996ChryslerSebring2.5LV6N/A
1996DodgeAvenger2.5LV6N/A
1996DodgeStratus2.5LV6N/A
1996Mitsubishi3000GT3.0LV6N/A
1996MitsubishiMontero3.0LV6N/A
1995ChryslerCirrus2.5LV6N/A
1995ChryslerSebring2.5LV6N/A
1995DodgeAvenger2.5LV6N/A
1995DodgeStratus2.5LV6N/A
1995Mazda9293.0LV6N/A
1995MazdaMPV3.0LV6N/A
1995Mitsubishi3000GT3.0LV6N/A
1995MitsubishiDiamante3.0LV6N/A
1995MitsubishiMontero3.0LV6N/A
1994Mazda9293.0LV6N/A
1994MazdaMPV3.0LV6N/A
1994Mitsubishi3000GT3.0LV6N/A
1994MitsubishiDiamante3.0LV6N/A
1993Mazda9293.0LV6N/A
1993MazdaMPV3.0LV6N/A
1993Mitsubishi3000GT3.0LV6N/A
1993MitsubishiDiamante3.0LV6N/A
1992Mazda9293.0LV6N/A
1992MazdaMPV3.0LV6N/A
1992Mitsubishi3000GT3.0LV6N/A
1992MitsubishiDiamante3.0LV6N/A
1991Mazda9293.0LV6N/A
1991MazdaMPV3.0LV6N/A
1991Mitsubishi3000GT3.0LV6N/AFrom 10/01/1990
1990Mazda9293.0LV6N/A
1990MazdaMPV3.0LV6N/A
1989Mazda9293.0LV6N/A
1989MazdaMPV3.0LV6N/A
1988Mazda9293.0LV6N/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:

1125811634632010163465001025500372002563039800256313901025631398016354957402248AH1151718AH115171B9UC31348C31507C31700MD174233MD174234MD194988

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