Fel-Pro 35723 Engine Coolant Thermostat Seal

Brand Fel-Pro 35723
Fits Oldsmobile · 6 vehicles

Application-specific materials. Engineered for dependable sealing performance and durability.

Premium grade. Built to deliver professional-trusted sealing solutions.

Thermostat seal. A sealing component for the cooling system.

Cross-references MAHLE C32068, 113431 and 12553364 for the same application. See all 4.

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Fel-Pro 35723 Engine Coolant Thermostat Seal

Fel-Pro 35723 is a premium engine coolant thermostat seal built for direct-fit sealing performance in select Oldsmobile applications. It uses application-specific materials to help maintain a reliable coolant seal where the thermostat housing meets the engine.

Key Features

  • Engine coolant thermostat seal for sealing the thermostat housing
  • Premium grade construction for dependable service
  • Application-specific material selection for vehicle sealing needs
  • Thickness: 0.265 in. / 6.7 mm
  • Mounting hole quantity: 0
  • Fits 1999-2002 Oldsmobile Intrigue and 2001-2002 Oldsmobile Aurora

Detailed Description

Fel-Pro 35723 is engineered for cooling-system sealing at the thermostat interface, where a precise seal helps control coolant flow and reduce leakage at the housing. Fel-Pro’s sealing systems are known for using vehicle-specific materials and fitment-focused design, and this thermostat seal follows that approach for select Oldsmobile Aurora and Oldsmobile Intrigue models. This part cross-references MAHLE C32068 for the same application.

What It Helps Solve

  • Coolant seepage at the thermostat housing
  • Sealing issues after thermostat service
  • Loss of coolant from a worn or flattened seal
  • Improper sealing caused by aged gasket material
  • Repeat cooling-system leaks on Oldsmobile Aurora and Intrigue applications

Installation Notes and Tips

Clean the mating surfaces thoroughly before installation and inspect the thermostat housing for corrosion, pitting, or distortion. Verify the seal thickness and seating surface match the original application, and follow the vehicle service procedure for the thermostat housing on 1999-2002 Oldsmobile Intrigue and 2001-2002 Oldsmobile Aurora models. Use the correct coolant and refill procedure after service.

Quality Assurance

Fel-Pro focuses on vehicle-specific sealing solutions for professional repair use, with materials selected to support consistent sealing performance in cooling-system applications. Part number 35723 is built as a premium sealing component for the listed fitments.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002OldsmobileAurora3.5LV6N/A—
2002OldsmobileIntrigue3.5LV6N/A—
2001OldsmobileAurora3.5LV6N/A—
2001OldsmobileIntrigue3.5LV6N/A—
2000OldsmobileIntrigue3.5LV6N/A—
1999OldsmobileIntrigue3.5LV6N/A—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MAHLE — C3206811343112553364WO8675