This machined aluminum adapter fits into the Heater Hose or any 3/4" ID hose in the coolant system. It will accommodate either 1/8" NPT or 1/4" NPT threads of most aftermarket coolant temperature sensors. This adapter can also be used with other NPT threaded fittings to splice coolant feed lines to turbochargers, etc.

Allows you to install a coolant temperature sending unit for an aftermarket gauge or a thermostatatic switch without having to drill and tap your existing metal pipes.  This design allows install into a straight section of your heater hose for a perfect fit.  Simply cut and trim the hose or replace your factory bleeder port (350Z / G35) or union (370Z / G37) and install this adapter in-line. Your choice of two additional standard worm clamps or spring clamps is available as an option below.

Please note: When installing your temperature sending unit an appropriate thread sealant must be used.