HomeBelts and Cooling > Gaskets and Sealing SystemsMahle C31785 Engine Coolant Thermostat Housing Gasket
Part #: C31785

Mahle C31785 Engine Coolant Thermostat Housing Gasket

⚙️ 81 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Kia and Hyundai, Optima, Rondo, Sportage, Santa Fe, Tucson, Magentis, Tiburon, Amanti, Sorento, Sonata, XG350, Sedona, and XG300
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Reliable Engine Coolant Thermostat Housing Gasket for Hyundai and Kia

The Mahle C31785 engine coolant thermostat housing gasket is designed to provide a secure seal for your vehicle's cooling system. Manufactured from durable steel, this gasket meets OEM standards to ensure proper fit and function for various Hyundai and Kia models.

Key Features of Mahle C31785 Thermostat Housing Gasket

  • Constructed from high-quality steel for durability and heat resistance
  • OEM standard item grade ensures reliable performance and fit
  • Package includes one gasket for easy replacement
  • Compatible with multiple Hyundai and Kia models including Sonata, Santa Fe, Optima, and Sorento
  • Part number C31785 for precise identification and ordering

Detailed Product Description

This engine coolant thermostat housing gasket by Mahle is engineered to maintain a tight seal between the thermostat housing and engine block, preventing coolant leaks and maintaining optimal engine temperature. The steel gasket material withstands high temperatures and pressure, reducing the risk of gasket failure over time. Designed to meet OEM standards, the C31785 gasket ensures compatibility and reliable performance across a range of Hyundai and Kia vehicles such as the Hyundai Sonata, Tucson, and Kia Sportage, Rondo, and Sedona.

Common Applications and Issues Addressed

  • Prevents coolant leaks from the thermostat housing
  • Helps maintain proper engine temperature regulation
  • Reduces risk of engine overheating due to gasket failure
  • Eliminates coolant contamination and loss
  • Supports efficient cooling system operation in Hyundai and Kia models

Installation Notes and Tips

  • Ensure the thermostat housing and engine surfaces are clean and free of old gasket material before installation
  • Use the correct torque specifications to avoid gasket damage
  • Inspect the thermostat housing for cracks or warping during replacement
  • Replace the gasket whenever the thermostat housing is removed to maintain a proper seal

Quality Assurance and Warranty

Mahle's C31785 thermostat housing gasket is manufactured to meet OEM standards, ensuring consistent quality and fitment. The steel construction provides durability under demanding engine conditions. While specific warranty details may vary, Mahle products typically come with a limited warranty against manufacturing defects, providing confidence in the product's reliability.

BrandMahle
Part NumberC31785
Gasket MaterialSteel
Item GradeOEM Standard

This part fits 81 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2010KiaRondo2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2010KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009HyundaiTucson2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009KiaMagentis2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009KiaRondo2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2009KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008HyundaiTucson2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008KiaMagentis2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008KiaRondo2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2008KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007HyundaiTucson2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007KiaMagentis2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007KiaRondo2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2007KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006HyundaiSanta Fe3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006HyundaiTucson2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaAmanti3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaMagentis2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaSorento3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2006KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiSanta Fe3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiSonata2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiTucson2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005HyundaiXG3503.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaAmanti3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaMagentis2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaSedona3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaSorento3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2005KiaSportage2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004HyundaiSanta Fe3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004HyundaiSonata2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004HyundaiXG3503.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004KiaAmanti3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004KiaMagentis2.7LV6N/ASteel; Water Outlet Flange
2004KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004KiaSedona3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2004KiaSorento3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003HyundaiSanta Fe3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003HyundaiSonata2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003HyundaiTiburon2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003HyundaiXG3503.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003KiaMagentis2.7LV6N/ASteel; Water Outlet Flange
2003KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003KiaSedona3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2003KiaSorento3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002HyundaiSonata2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002HyundaiXG3503.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002KiaMagentis2.7LV6N/ASteel; Water Outlet Flange
2002KiaOptima2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2002KiaSedona3.5LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2001HyundaiSanta Fe2.7LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2001HyundaiSonata2.5LV6N/ASteel; Housing To Head
2001HyundaiXG3003.0LV6N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2001KiaOptima2.5LV6N/ASteel; Housing To Head
2001KiaOptima2.4LL4N/AFits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2000HyundaiSonata2.5LV6N/ASteel; Housing To Head
1999HyundaiSonata2.5LV6N/ASteel; Housing To Head

* 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:

3576435920

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