Redhorse Performance Fuel Pressure Gauge

The liquid filling dampens needle vibration caused by engine harmonics, ensuring a steady, readable measurement and extending the lifespan of the internal mechanisms.

This gauge features a standard 1/8 NPT male inlet, making it directly compatible with most aftermarket fuel pressure regulators and fuel rail ports.

A 0-100 PSI scale is ideal for Electronic Fuel Injection (EFI) systems, which typically operate at higher pressures than carbureted setups.

Extreme heat can cause the liquid inside to expand and build internal pressure. If readings seem off when hot, you may need to briefly vent the gauge to equalize the pressure.

Yes, because it uses a tapered NPT fitting, a small amount of thread sealant paste (compatible with fuel) is recommended to prevent leaks. Do not use Teflon tape.