Mechanical Temperature Gauge Adapters
These adapters are all designed to accept either the 5/8-18 thread found on Auto Meter and Stewart-Warner mechanical temperature gauges, or the 3/8 BSP thread used on Racetech and Smiths gauges.
Note that the 3/8 BSP thread is very close to 5/8-18. The thread pitch is very close (19 threads per inch for BSP vs. 18 threads per inch for 5/8-18). 3/8 BSP has a slightly larger thread diameter (0.67" nominal OD) than 5/8-18 (0.625" nominal OD). A 5/8-18 fitting may thread into a 3/8 BSP hole, but it will be loose.
Recent Top Seller for this product group | |
| This UNF female to M16x1.5 male fitting has 5/8-18 female threads to accept a mechanical temperature gauge bulb. The other side has male M16x1.5 threads and includes a sealing washer. |
| Image | Part No. | Description | Price | Stock Status |
|---|---|---|---|---|
 | 1227-Size | $104.99 | In Stock | |
 | 3497-010-Size | Oil Temp. Probe Adapter Fitting, 5/8-18 to AN Tee, Blue Alum | $23.99 to $25.99* | In Stock |
 | 3497-210-Size | Oil Temp. Probe Adapter Fitting, 5/8-18 to AN Tee, Black Alu | $24.44 to $32.62 | In Stock |
 | AM2282 | Inline Temp Gauge Adapter for 1 - 1.25" Hose, 3/8 NPT Female | $68.04* | In Stock |
 | AM2283 | Inline Temp Gauge Adapter for 1.50" Hose, 3/8 NPT Female | $69.99* | In Stock |
 | AM2261 | $16.81 | In Stock | |
 | 3228-111 | $17.99* | In Stock | |
 | AM2263 | 3/8 NPT Mechanical Temperature Gauge Adapter, Brass | $11.90 | In Stock |
 | AM2264 | $11.90 | In Stock | |
 | AM2272 | $16.64 | In Stock | |
 | AM2273 | $15.47 | In Stock | |
 | AM2275 | M16x1.5 Mechanical Temperature Gauge Adapter, Brass | $16.66* | In Stock |
 | 1209 | Mechanical Temperature Gauge Bulb Extender Nut, 5/8-18 | $24.99 | In Stock |
 | 1098 | Racetech 5/8-18 Temperature Bulb Adapter | $17.49 | In Stock |
| 1097 | $18.99 | In Stock | |
 | 1096 | $0.54 | In Stock |
* Quantity Pricing Available
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