Mahle C33688 Engine Coolant Thermostat Housing Gasket
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Mahle

Mahle C33688 Engine Coolant Thermostat Housing Gasket

Brand Mahle C33688
Fits Lexus · 45 vehicles

Molded O-ring seal. Provides a precise sealing profile for thermostat housing service.

OE-trusted sealing brand. MAHLE gaskets are used by OEMs and technicians worldwide.

Cross-references FEL-PRO 36186 and 16325-38020 for the same application. See all 2.

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Engine Coolant Thermostat Housing Gasket

Mahle C33688 is an engine coolant thermostat housing gasket for Lexus performance and luxury applications. It is a molded rubber O-ring style seal specified for thermostat gasket service, with fitment covering multiple Lexus V8 models.

Key Features

  • Molded rubber O-ring construction for thermostat housing sealing.
  • Engine coolant gasket application for sealing the thermostat housing interface.
  • Mahle sealing product backed by OEM and technician trust.
  • Fits Lexus GS F, LC500, RC F, LS460, LS600h, IS F, and GS460 applications listed below.

Detailed Description

Mahle C33688 is a replacement engine coolant thermostat housing gasket used to maintain a secure seal at the thermostat housing. The molded rubber O-ring design is suited to coolant sealing service where a precise fit is needed to help control leaks at the housing joint. This part number, C33688, is listed for 2007-2020 Lexus applications including GS F, LC500, RC F, LS460, LS600h, IS F, and GS460. This part cross-references FEL-PRO 36186 for the same application.

What It Is Used For

  • Stopping coolant seepage at the thermostat housing.
  • Replacing a flattened, hardened, or damaged sealing ring.
  • Restoring a proper seal after thermostat service.
  • Addressing coolant odor or visible residue around the housing.
  • Supporting leak repair on the cooling system sealing surface.

Installation Notes and Tips

Clean the sealing surfaces before installation and inspect the thermostat housing for damage, corrosion, or distortion. Verify the gasket profile matches the original seal before assembly. Use the fitment notes to confirm the correct Lexus application for C33688 before installation.

Quality Assurance

MAHLE gaskets are trusted by OEMs and technicians worldwide for sealing applications.

This part fits 45 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2020LexusGS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2020LexusLC5005.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2020LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2019LexusGS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2019LexusLC5005.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2019LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2018LexusGS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2018LexusLC5005.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2018LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2017LexusGS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2017LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2017LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2016LexusGS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2016LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2016LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2016LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2015LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2015LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2015LexusRC F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2014LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2014LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2014LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2013LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2013LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2013LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2012LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2012LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2012LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2011LexusGS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2011LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2011LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2011LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2010LexusGS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2010LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2010LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2010LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2009LexusGS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2009LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2009LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2009LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2008LexusGS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2008LexusIS F5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2008LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2008LexusLS600h5.0LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
2007LexusLS4604.6LV8Molded rubber O-ring for Engine Coolant Thermostat Gasket.
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — 3618616325-38020