Felpro 35820 Thermostat Seal
"From the leader in aftermarket engine sealing, FEL-PRO the gaskets professionals trust. Each gasket, set, or seal is built to meet or exceed all original equipment specifications and is validated for fit, form, and function. Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust. FEL-PRO gasket sets are engineered and manufactured specifically for the aftermarket repair environment. Every part for the repair procedure is included in the kit unless otherwise noted."