Fel-Pro 35508 Engine Coolant Thermostat Case O-Ring

Engine Coolant Thermostat Case O-Ring

Fel-Pro 35508 is an engine coolant thermostat case O-ring for select Honda Prelude applications. It is built for sealing service where a precise fit and reliable coolant containment are required.

Key Features

• Application-specific sealing material for thermostat case service
• Engine coolant O-ring designed for a precise sealing interface
• Fel-Pro sealing solution for professional repair use
• Fits 1988-1991 Honda Prelude, N/A

Detailed Description

Fel-Pro 35508 is a thermostat case O-ring used in cooling system sealing applications on the Honda Prelude. The part is intended to restore the seal at the thermostat case interface, helping maintain proper coolant containment at the housing connection. Fel-Pro 35508 is part of Fel-Pro's sealing lineup, which uses application-specific materials to address vehicle sealing needs with a focus on durability and consistent fit. This part cross-references Monroe Shocks & Struts (e.g., 19313PH3000, 112171) for the same application.

What It Is Used For

• Coolant seepage at the thermostat case
• Sealing wear at the housing interface
• Loss of sealing integrity during cooling system service
• Replacement of a hardened or flattened O-ring

Installation Notes and Tips

Inspect the thermostat case and mating surfaces before installation. Clean away old seal material, coolant residue, and debris so the new O-ring seats evenly. Verify the replacement matches the original application before reassembly.

Quality Assurance

Fel-Pro sealing products are engineered with application-specific materials and are trusted by professional technicians for sealing performance and durability.