This temperature sender kit includes a one-wire sender with 1/8 NPT male threads, a 1/8 NPT female to 3/8 NPT male adapter, and a 1/8 NPT female to 1/2 NPT male adapter.
For use with short-sweep Auto Meter electrical oil or water temperature gauges (240°F, 280°F, and 340°F) manufactured prior to 1995. These gauges can be identified by the black mask at the bottom of the lens.
Newer gauges with a full clear lens require a different Late Style Auto Meter Fluid Temperature Sender, Part No. AM2258.