AISIN Engine Coolant Thermostat Gasket P/N:THP-408
Seal the thermostat housing and keep coolant where it belongs with the AISIN Engine Coolant Thermostat Gasket (THP301). This OE-manufactured gasket sits between the thermostat and its housing, forming the joint that helps prevent coolant leakage as the engine warms and pressurizes. It's a direct-fit replacement for a range of Hyundai and Mitsubishi applications, including the 1995 Hyundai Elantra [L4-1.6L] and [L4-1.8L], the 1995 Hyundai Scoupe [L4-1.5L], the 1995-1998 Hyundai Sonata [L4-2.0L] and [V6-3.0L], the 1997-1999 Mitsubishi 3000GT [V6-3.0L], the 1995-1996 Mitsubishi Diamante [V6-3.0L], and the 1995-1996 Mitsubishi Mirage [L4-1.5L]. See the Buyer's Guide tab for the full list.
Signs this gasket may need replacing include coolant seepage or drips around the thermostat housing and low coolant level. If a failed thermostat gasket is the source of your leak, this replaces it — always diagnose the cause before installing. Country of origin: Japan.
What does this gasket do?
It seals the joint between the thermostat and its housing, helping prevent coolant leakage as the engine warms up and the cooling system pressurizes.
Will this fit my vehicle?
It's cataloged for several 1995-1999 Hyundai and Mitsubishi applications, including the Elantra, Scoupe, Sonata, 3000GT, Diamante and Mirage. Check the Buyer's Guide tab to confirm your exact engine.
How do I know if my thermostat gasket has failed?
Common signs are coolant seepage or drips around the thermostat housing and a dropping coolant level. Diagnose the source before replacing.
Is this an OE-quality part?
Yes. AISIN lists it as OE-manufactured for exact form, fit and function, designed to prevent coolant leakage.
How many gaskets do these applications use?
The listed applications use one gasket each. Package and order quantities are shown at checkout.
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.