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Earls Mechanical Temperature Gauge Adapter

Mechanical Temperature Gauge Adapter, 1/2" NPT MALE TO 5/8-18 Temp Probe Adapter

PART# 991274ERL

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$11.31   Holleydays Price
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Earl's Mechanical Temperature Gauge Adapters make installation of coolant temperature or transmission temperature gauges a snap. These adapters are lightweight aluminum and feature a red anodized finish. Fits most mechanical temperature gauges with 5/8"-18 probe and tapered seat.


  • Aluminum
  • Red Anodized
  • 1/2” NPT
  • Fits Temperature Sensors w/ 5/8”-18 Threads and Tapered Seat
  • Ideal for Use w/ Most Mechanical Temperature Gauges
  • Lighter Weight and More Attractive Than Brass Adapters
  • Fits Most Autometer® & other brand gauges


Adapter NPT Size ( A )1/2 NPT MALE
Adapter Port Size ( B )5/8-18
Adapter TypeMechanical Temperature Gauge
Emission Code5
FinishAnodized Red
Material2024 Aluminum
Product LinePremium
Product TypeMechanical Temp Gauge
Part Number991274ERL



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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         X  Holleydays 2020 20% off and DD
         X  Holleydays 2020 20% off and DD