170°F Engine Coolant Thermostat

The Motorad 302-170 is a standard engine coolant thermostat engineered to regulate engine temperature effectively across a wide range of vehicles, including many Honda, Acura, Toyota, and Nissan models. Designed to open at 170°F, this thermostat ensures optimal engine performance by preventing overheating and maintaining a consistent operating temperature, which also aids in efficient fuel combustion. The unit features a jiggle pin weep hole, a crucial component for allowing air to escape the cooling system. This feature helps to eliminate air pockets, thereby improving coolant flow and reducing the risk of engine damage caused by a faulty thermostat. This thermostat is constructed with specific dimensions for a precise fit, including a sealing flange outside diameter of 2.51 inches, a height between flanges of 1.61 inches, and an overall height of 2.3 inches. The bypass diameter measures 1.18 inches with a bypass length of 1.66 inches, and the flange thickness is 0.05 inches. It is important to note that this part does not include a gasket or seal; a compatible gasket must be sourced separately to ensure proper installation and function. Installation of the Motorad 302-170 thermostat involves removing the old unit and cleaning the housing surface. No special installation tools are required, and the thermostat is designed as a direct replacement with a bolt-on fit, necessitating no modifications. The jiggle pin should be oriented correctly to ensure proper air venting during installation. Motorad Standard thermostats are manufactured to meet industry standards, providing reliable performance and durability consistent with OEM specifications.