This is a CNC machined aluminum adapter designed to mount inline into a 1.5" ID radiator hose. This adapter allows you to put a temperature sensor with 1/8 NPT threads in your radiator hose. This could be useful if you are looking to add an auxiliary water temperature gauge or fan control kit but do not have a port in the intake manifold or water pump to mount the sensor. The adapter also includes two stainless steel hose clamps, an 18-22 gauge ring style electrical terminal in order to connect your ground (if necessary) and installation instructions. To install the adapter, you simply cut your radiator hose in the location where you want to mount the adapter, slip it in place, and use the supplied hose clamps to tighten it down. Your temperature sensor screws into the threaded port. If a ground is necessary, you can use the supplied ring style terminal around the sensor or you can strip some insulation off the end of a wire and insert it into the radiator hose prior to slipping it onto the adapter such that the wire is sandwiched between the adapter and the radiator hose, under the hose clamp. You will need to consult the documentation for the sensor you are using to determine if it requires a ground or not. Some sensors provide their own ground - these usually have two or more wires. Other sensors get their ground through the body of the sensor itself - these usually only have one wire. If a sensor does not provide its own ground, you will need to provide it with one by connecting a wire between the sensor (or the adapter) and a convenient ground source such as a bolt on your engine. This adapter will work in any vehicle which has a 1 1/2" ID radiator hose that has about four inches worth of straight section for the adapter to be mounted in. The threads in the adapter are 1/8 NPT. (A 3/8 NPT version of this adapter is also available.)
