HomeBelts and Cooling > Gaskets and Sealing SystemsMahle C31652 Engine Coolant Thermostat Housing O-Ring
Part #: C31652

Mahle C31652 Engine Coolant Thermostat Housing O-Ring

⚙️ 69 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, Mercury, and Land Rover, Ranger, Explorer, Explorer Sport Trac, Mustang, B4000, Mountaineer, LR3, and Explorer Sport
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Reliable Engine Coolant Thermostat Housing O-Ring for Ford and Land Rover

The Mahle C31652 Engine Coolant Thermostat Housing O-Ring is designed to provide a secure seal for the thermostat housing in select Ford, Land Rover, Mazda, and Mercury vehicles. Crafted from molded rubber, this gasket ensures durability and resistance to coolant leaks under varying engine temperatures.

  • Constructed from molded rubber for effective sealing and longevity
  • Compatible with Ford B4000, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Mustang, Ranger models
  • Also fits Land Rover LR3 and select Mazda and Mercury vehicles
  • Part number C31652 ensures precise replacement and fitment
  • Designed to maintain coolant system integrity and prevent leaks

Durable Molded Rubber Material for Coolant Outlet Gasket

This Engine Coolant Thermostat Housing O-Ring features a molded rubber construction that offers excellent resistance to heat, pressure, and coolant chemicals. The material maintains its shape and sealing properties over time, reducing the risk of coolant leaks that can lead to engine overheating or damage. The gasket’s design ensures a tight fit between the thermostat housing and engine block, critical for maintaining proper coolant flow and engine temperature regulation.

Compatible Vehicles and Applications

The Mahle C31652 O-Ring is compatible with a range of vehicles, including Ford models such as the B4000, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Mustang, and Ranger. It also fits Land Rover LR3 models, as well as select Mazda and Mercury vehicles. This part is ideal for those seeking a reliable replacement for the thermostat housing gasket in these specific vehicles.

Common Issues Addressed by This O-Ring

  • Prevents coolant leaks at the thermostat housing connection
  • Eliminates engine overheating caused by coolant loss
  • Reduces risk of gasket deterioration due to heat and pressure
  • Maintains proper coolant system pressure and flow
  • Helps avoid engine damage related to coolant system failure

Installation Notes and Tips

When installing the Mahle C31652 Engine Coolant Thermostat Housing O-Ring, ensure the thermostat housing and surrounding surfaces are clean and free of old gasket material or debris. Properly seat the molded rubber gasket to avoid pinching or misalignment, which can cause leaks. It is recommended to inspect the thermostat housing for cracks or damage before installation. Follow vehicle-specific torque specifications to secure the housing without over-tightening.

Quality Assurance and Warranty

Mahle manufactures the C31652 O-Ring to meet OEM standards for fit, form, and function. The molded rubber material is engineered for durability and resistance to coolant system conditions. While specific warranty details may vary, Mahle parts typically come with a limited warranty against defects in material and workmanship, providing confidence in the product’s reliability for your Ford, Land Rover, Mazda, or Mercury vehicle.

BrandMahle
Part NumberC31652
Coolant Outlet Gasket MaterialMolded Rubber

This part fits 69 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2010MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2009MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2008MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007Land RoverLR34.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2007MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006Land RoverLR34.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2006MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005FordMustang4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005Land RoverLR34.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2005MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2004FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2004FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2004FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2004MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2004MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003FordExplorer Sport4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2003MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002FordExplorer Sport4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2002MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001FordExplorer Sport4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001FordExplorer Sport Trac4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001FordRanger4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001MazdaB40004.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2001MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2000FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
2000MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
1999FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
1999MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
1998FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
1998MercuryMountaineer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber
1997FordExplorer4.0LV6N/AUpper Thermostat Housing O-Ring; Molded Rubber

* 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:

35617

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