The Engine Coolant Thermostat Seal by Fel-Pro, with manufacturer part number 35610-1, is a high-quality gasket designed for engine coolant systems in cars and trucks. Made in the United States, this seal ensures a secure and leak-free connection between the thermostat and engine block, providing reliable engine cooling performance. With the trusted Fel-Pro brand and precise engineering, this thermostat seal is a dependable component for maintaining your vehicle's engine cooling system.