Aisin THRAZ-0010 Engine Coolant Thermostat & Housing Assembly

The Aisin THRAZ-0010 is a genuine OE-quality engine coolant thermostat and housing assembly designed to restore proper thermal regulation to your vehicle's cooling system. Manufactured by Aisin Automotive Casting Tennessee, this assembly is built to the same standards as original equipment components, ensuring exact form, fit, and function.

The thermostat controls coolant flow through the engine by opening and closing an internal valve in response to engine temperature. When the engine is cold, the thermostat remains closed to allow rapid warm-up. Once the engine reaches its optimal operating temperature, the thermostat opens to circulate coolant through the radiator, preventing overheating and maintaining consistent performance.

Key Features:

• Genuine Aisin quality — manufactured to OEM specifications for reliable, long-lasting performance
• Complete assembly — includes thermostat and housing for a straightforward, leak-free installation
• Precise temperature regulation — opens and closes at the correct calibrated temperature to protect engine components
• Improved fuel efficiency — maintaining proper engine operating temperature reduces fuel consumption and exhaust emissions
• Direct OE replacement — matches original equipment dimensions and connection points for a no-modification fit

Aisin is a globally recognized Tier 1 automotive supplier headquartered in Kariya City, Aichi Prefecture, Japan, with manufacturing operations across the United States, including Tennessee. The THRAZ-0010 is an ideal choice for restoring cooling system integrity using a part that meets or exceeds the original manufacturer's standards.