Fel-Pro 36161 Engine Coolant Thermostat Housing Gasket - Lower

Engine Coolant Thermostat Housing Gasket Overview

Fel-Pro 36161 is a premium engine coolant thermostat housing gasket built for real-world repair conditions. It is made to seal imperfect mating surfaces and help restore a dependable coolant seal on Subaru applications.

Key Features

• Premium-grade gasket for cooling system service
• Engineered for imperfect sealing surfaces
• Uses proprietary sealing materials for reliable fit and seal performance
• Direct replacement style for thermostat housing service

Detailed Description

Fel-Pro 36161 is an engine coolant thermostat housing gasket for Subaru BRZ, Crosstrek, Impreza, Legacy, Outback, Ascent, Forester, and XV Crosstrek applications. It is built to address the sealing demands of thermostat housing repairs where surface condition can affect leak control. This part number, 36161, is a practical choice when replacing a worn or damaged gasket during cooling system maintenance on Subaru BRZ and Subaru Impreza applications.

Fel-Pro gaskets are developed for repair environments rather than idealized conditions, with materials selected to maintain sealing performance on less-than-perfect surfaces. The premium grade construction supports consistent sealing at the thermostat housing interface and helps maintain proper coolant containment after service. This part cross-references Subaru 21236AA100 and 21236AA101 for the same application.

What It Is Used For

• Coolant seepage at the thermostat housing
• Sealing loss after thermostat housing removal
• Leak repair caused by aged or compressed gasket material
• Service work on cooling system components

Installation Notes and Tips

Clean the mating surfaces thoroughly before installation and remove any old gasket material, corrosion, or residue. Verify the housing and surrounding components are properly aligned before tightening to the manufacturer’s service procedure. Confirm the correct application by year, make, model, and position before ordering.

Quality Assurance

Fel-Pro focuses on sealing solutions for repair conditions, using proprietary materials and application-specific design to support dependable gasket performance in service.