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Holley 26-502 - Fuel Pressure Gauge. 0-30PSI
Mechanical Fuel Pressure Gauge 0 - 30 PSI Non-Liquid Filled   

  • 1.5 in. Diameter
  • Chromed Steel Case 
  • 0.125 in. NPT Brass Fitting 
  • Includes Elbow Fitting 
  • Fits Holley chromed fuel lines and fuel block

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  • Readings on liquid-filled pressure gauges will fluctuate with variations in ambient (under hood) temperature. A liquid-filled gauge measures line pressure against the pressure inside the gauge casing. Alterations in ambient temperature can lead to fluctuations in the casing pressure, with changes of up to 1-3 psi. Unlike liquid-filled gauges, non-liquid-filled gauges do not experience this issue, but their needles may be more susceptible to vibration.

Holley 26-502 - Fuel Pressure Gauge. 0-30PSI
Mechanical Fuel Pressure Gauge 0 - 30 PSI Non-Liquid Filled   

  • 1.5 in. Diameter
  • Chromed Steel Case 
  • 0.125 in. NPT Brass Fitting 
  • Includes Elbow Fitting 
  • Fits Holley chromed fuel lines and fuel block

There is no documentation for this product.

No video avaliable.

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


Readings on liquid-filled pressure gauges will fluctuate with variations in ambient (under hood) temperature. A liquid-filled gauge measures line pressure against the pressure inside the gauge casing. Alterations in ambient temperature can lead to fluctuations in the casing pressure, with changes of up to 1-3 psi. Unlike liquid-filled gauges, non-liquid-filled gauges do not experience this issue, but their needles may be more susceptible to vibration.

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