Gates Engine Coolant Thermostat Housing Gasket P/N:33631 (Pack of 10)
Get a clean, leak-free seal at the thermostat housing with the Gates Engine Coolant Thermostat Housing Gasket / Thermostat Gasket (MPN 34040). It drops in as a direct-fit replacement for the 1969-1974 Toyota Land Cruiser (L6-3.9L), the 1975-1987 Toyota Land Cruiser (L6-4.2L), and the 1988-1992 Toyota Land Cruiser (L6-4.0L), sealing the joint between the thermostat and its housing so coolant stays in the intended path. This part is listed under both names.
If a leaking or aged thermostat housing gasket is behind coolant seepage at the outlet, this replaces it. Country of origin: China.
Interchange: 20870 · 1058 · 25617 · 25189 · 27189 · 1634161030
This part cross-references / interchanges with the following part numbers:
What does this gasket do?
It seals the joint between the thermostat and the thermostat housing (water outlet), helping keep coolant in its intended path for a leak-free connection.
Which vehicles does it fit?
It's a direct-fit replacement for the 1969-1974 (L6-3.9L), 1975-1987 (L6-4.2L), and 1988-1992 (L6-4.0L) Toyota Land Cruiser. See the Buyer's Guide tab to confirm your vehicle.
What makes the Gates design easier to install?
The adhesive-backed, self-adhesive gasket helps align it with the housing and holds the thermostat in place while the water outlet is installed, increasing installation efficiency.
Are rubber thermostat seals available too?
Yes. Gates notes that rubber thermostat seals are also available as an alternative to this adhesive-backed gasket.
How many gaskets does each application use?
The listed applications use one per application. Confirm the quantity your engine requires against the service information before ordering.
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.