FEL-PRO Engine Coolant Outlet Seal,Engine Coolant Thermostat Housing Seal P/N:35278
Help keep engine coolant sealed in at the thermostat and coolant outlet with the FEL-PRO Multi-Purpose O-Ring 35524, which is listed as both an engine coolant outlet seal and an engine coolant thermostat seal. It fits many vehicles, among them the 2000-2022 Subaru Outback, 1998-2021 Subaru Forester and 1993-2022 Subaru Impreza. It is a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
Fel-Pro designs its gaskets specifically for the repair environment. They are intended to deliver a dependable seal even on troublesome applications and imperfect sealing surfaces, and they are made with proprietary materials for real-world repair work.
Signs this seal may need replacing include coolant seepage or crusty residue around the thermostat or coolant outlet, a slowly dropping coolant level, or a sweet coolant smell after driving. Diagnose the leak source before replacing, and follow the vehicle service information for installation and coolant refill.
Interchange: MD170031 · MD365878 · 112251 · 33661 · C31748 · C31766 · C32711 · 635493 · 740204 · MD158570 · MD175746 · MD314596 · MD315301 · MD337408 · WO8343 · WO8383 · 21236AA000 · 21236AA010 · 21236AA050 · 21236AA100 · 711110600
This part cross-references / interchanges with the following part numbers:
What does the FEL-PRO 35524 O-ring do?
It seals the coolant joint at the thermostat and coolant outlet, which helps keep engine coolant from leaking out. It is listed as both an engine coolant outlet seal and a thermostat seal.
Which vehicles does the FEL-PRO 35524 fit?
It fits many vehicles, including the 2000-2022 Subaru Outback, 1998-2021 Subaru Forester and 1993-2022 Subaru Impreza. Check the Buyer's Guide tab for your exact vehicle and engine.
Is it built to original equipment specifications?
Yes. Fel-Pro states that it matches or surpasses original equipment specifications and uses an application-specific design for a precise fit.
What are signs this seal may need replacing?
Signs include coolant seepage or residue around the thermostat or coolant outlet, a falling coolant level, or a sweet coolant smell. Confirm the source of the leak before replacing the seal.
Any installation tips?
Clean both sealing surfaces thoroughly. Follow the vehicle service information for reassembly, torque values and refilling the cooling system.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.