Brand: Auto Meter Gauges
This aluminum adapter will allow you to install a mechanical temperature gauge sensor bulb in a 1" or 1.25" ID hose. Includes adapter with 3/8 NPT female port, two hose clamps, 3/8 NPT Male to 5/8-18 Female Mechanical Gauge Adapter Nut, and grounding wire for use with electrical gauges. Measures 3" long overall.
Not just for mechanical temperature gauges! Add a 3/8 NPT to 1/8 NPT reducer (sold separately) and install your electrical gauge sender, a thermal switch to trigger an electric fan, a coolant bleed nipple, or even a drain petcock!