HomeBelts and Cooling > Gaskets and Sealing SystemsFel-Pro 35660 Engine Coolant Thermostat Seal
Part #: 35660

Fel-Pro 35660 Engine Coolant Thermostat Seal

⚙️ 60 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chrysler, and Dodge, STS, SRX, XLR, Sebring, Stratus, Concorde, and Intrepid
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Overview of Fel-Pro Engine Coolant Thermostat Seal 35660

The Fel-Pro 35660 engine coolant thermostat seal is designed to provide a reliable seal for the thermostat housing in select Cadillac, Chrysler, and Dodge vehicles. Engineered with precise dimensions and premium-grade materials, this seal ensures proper coolant flow and prevents leaks in your vehicle's cooling system.

  • Inside diameter options: 1.890 inches (48.0 mm)
  • Thickness: 0.245 inches (6.2 mm)
  • Premium grade material for durability and heat resistance
  • Zero mounting holes for a secure, leak-free fit
  • Compatible with multiple Cadillac, Chrysler, and Dodge models

Detailed Product Description

The Fel-Pro 35660 thermostat seal is manufactured to exact specifications, featuring an inside diameter of 1.890 inches (48.0 mm) and a thickness of 0.245 inches (6.2 mm). This premium-grade seal is designed to withstand the thermal and mechanical stresses found in engine cooling systems. Its construction ensures a tight seal around the thermostat housing, preventing coolant leaks that can lead to engine overheating or inefficient temperature regulation.

This seal is compatible with a range of vehicles including Cadillac SRX, STS, and XLR models, as well as Chrysler Concorde, Dodge Intrepid, and Dodge Stratus. The absence of mounting holes simplifies installation and reduces potential leak points, making it a reliable choice for maintaining your vehicle’s cooling system integrity.

Applications and Common Issues Addressed

  • Prevents coolant leaks around the thermostat housing
  • Maintains proper engine temperature regulation
  • Reduces risk of engine overheating due to seal failure
  • Eliminates coolant contamination from external sources
  • Helps avoid costly repairs related to cooling system damage

Installation Notes and Tips

  • Ensure the thermostat housing surface is clean and free of old gasket material before installation
  • Verify the correct orientation of the seal to match the thermostat housing
  • Use appropriate torque specifications when securing the thermostat housing
  • Inspect the seal for any damage prior to installation
  • Replace the seal whenever the thermostat is serviced to maintain optimal performance

Quality Assurance and Warranty

Fel-Pro manufactures the 35660 thermostat seal to meet stringent quality standards, using premium materials that resist heat and chemical degradation. This part is engineered for durability and consistent performance in the specified Cadillac, Chrysler, and Dodge models. While specific warranty terms may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship, providing confidence in the product’s reliability.

This part fits 60 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010CadillacSTS4.6LV8N/A
2009CadillacSRX4.6LV8N/A
2009CadillacSTS4.6LV8N/A
2009CadillacSTS4.4LV8N/A
2009CadillacXLR4.6LV8N/A
2009CadillacXLR4.4LV8N/A
2008CadillacSRX4.6LV8N/A
2008CadillacSTS4.6LV8N/A
2008CadillacSTS4.4LV8N/A
2008CadillacXLR4.6LV8N/A
2008CadillacXLR4.4LV8N/A
2007CadillacSRX4.6LV8N/A
2007CadillacSTS4.6LV8N/A
2007CadillacSTS4.4LV8N/A
2007CadillacXLR4.6LV8N/A
2007CadillacXLR4.4LV8N/A
2007ChryslerSebring2.7LV6N/A
2006CadillacSRX4.6LV8N/A
2006CadillacSTS4.6LV8N/A
2006CadillacSTS4.4LV8N/A
2006CadillacXLR4.6LV8N/A
2006CadillacXLR4.4LV8N/A
2006ChryslerSebring2.7LV6N/A
2006DodgeStratus2.7LV6N/A
2005CadillacSRX4.6LV8N/A
2005CadillacSTS4.6LV8N/A
2005CadillacXLR4.6LV8N/A
2005ChryslerSebring2.7LV6N/A
2005DodgeStratus2.7LV6N/A
2004CadillacSRX4.6LV8N/A
2004CadillacXLR4.6LV8N/A
2004ChryslerConcorde2.7LV6N/A
2004ChryslerIntrepid2.7LV6N/A
2004ChryslerSebring2.7LV6N/A
2004DodgeIntrepid2.7LV6N/A
2004DodgeStratus2.7LV6N/A
2003ChryslerConcorde2.7LV6N/A
2003ChryslerIntrepid2.7LV6N/A
2003ChryslerSebring2.7LV6N/A
2003DodgeIntrepid2.7LV6N/A
2003DodgeStratus2.7LV6N/A
2002ChryslerConcorde2.7LV6N/A
2002ChryslerIntrepid2.7LV6N/A
2002ChryslerSebring2.7LV6N/A
2002DodgeIntrepid2.7LV6N/A
2002DodgeStratus2.7LV6N/A
2001ChryslerConcorde2.7LV6N/A
2001ChryslerIntrepid2.7LV6N/A
2001ChryslerSebring2.7LV6N/A
2001DodgeIntrepid2.7LV6N/A
2001DodgeStratus2.7LV6N/A
2000ChryslerConcorde2.7LV6N/A
2000ChryslerIntrepid2.7LV6N/A
2000DodgeIntrepid2.7LV6N/A
1999ChryslerConcorde2.7LV6N/A
1999ChryslerIntrepid2.7LV6N/A
1999DodgeIntrepid2.7LV6N/A
1998ChryslerConcorde2.7LV6N/A
1998ChryslerIntrepid2.7LV6N/A
1998DodgeIntrepid2.7LV6N/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:

112971125636234792328C31640C32390

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