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Original Equipment Manufacturer | 78C | 78C (172F) OE Temp Thermostat
The thermostat housing is the cast or molded unit that contains the thermostat and provides the connection point for the upper radiator hose and coolant temperature sensor. Signs of a failing housing include: coolant leaking from the housing body or where the hose attaches, a crack visible in the housing material, or a housing that has warped and no longer seals properly. Replace a cracked or warped housing to eliminate the leak and protect the engine from coolant loss.
Aisin is a global leader in automotive components and a primary supplier to Toyota, Lexus, and other premium manufacturers. Renowned for OE-quality water pumps, timing components, clutches, transmissions, and sealing systems, Aisin combines cutting-edge Japanese engineering with rigorous quality standards to deliver exceptional durability and performance.
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