These adapters allow you to retain your vehicles stock temperature sending unit and stock gauge.
Universal application;1-3/8 inch with 3/8 inch sensor hole;Installs in upper radiator hose;Allows use of stock temperature sending unit;California Residents: WARNING Advance Adapters Inline Temperature Sensor - 716673 The sensor hole is either 3/8 inch or 1/2 inch on the 1-3/8 adapters or 1/2 inch on the 1-1/2 inch adapter. These units are offered in either 1-3/8 inch or 1-1/2 inch hose diameter as to fit most block and radiator configurations.We offer three upper radiator hose in-line temperature sensor adapters..