Black 7 Color 30,000 PSI Fuel Rail Pressure Gauge

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    30 DayNo Hassle Returns

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  • One Year Limited Warranty

    One Year
    Limited Warranty


GlowShift’s Black 7 Color Series 30,000 PSI Fuel Rail Pressure Gauge reads diesel truck fuel pressures directly from the common rail, allowing you to easily monitor engine rail pressure levels. Please note that this gauge is only compatible with the 2003-2018 Dodge Ram with a 5.9L or 6.7L Cummins, and the 2002-2018 Chevy Silverado or GMC Sierra with a 6.6L Duramax. Installing this gauge will ensure that your diesel truck is running at optimal levels, protecting against damage to injectors and a loss of overall horsepower.

Black 7 Color Series Black 7 Color Series

GlowShift’s Black 7 Color Gauge Series comes standard with a cutting-edge design that includes a black gauge dial, analog display and magnified clear lens. You can also choose between 7 different color options for the LED display. Install to the dashboard, A-pillar, or another location inside your vehicle. You’ll enhance the interior of your vehicle and take accurate readings at the same time.


Black 7 Color Series Features

The gauge’s illuminated red needle sweeps 270° and is powered by stepper motor technology. You’ll get an effective combination of incredibly precise gauge readings with extremely smooth needle movement. GlowShift’s 7 Color through dial lighting system allows you to select and change the color of your gauge lighting display by simply pressing the button located on the front of the gauge.

7 Color Options

Black 7 Color Series Color Options

Easily cycle through the 7 Solid Color Settings and 2 Color Cycle Modes. The solid color modes featured are Blue, Green, Red, Teal, Yellow, Purple and White. Adjust the color of the gauge to match your factory dash lights, or create a custom look inside of your car or truck. With the Color Memory feature, you won’t have to reset the color of the gauge every time you turn on your vehicle.


Black 7 Color Series Backlighting

This gauge features LED backlighting which results in an ultra-bright display that delivers clear and vivid readouts. On or off, the gauge will look great courtesy of the black gauge face and magnified lens which are at the heart of this Gauge Series. By connecting the orange wire from the power harness to the factory headlight switch, you can dim the gauge 30% when the headlights are on.

What's Included

  • 2-1/16” (52mm) Fuel Rail Pressure Gauge
  • 9’ Sensor Harness
  • 2’ Power Harness
  • Gauge Visor
  • Mounting Bracket
  • Mounting Bracket Hardware
  • Installation Instructions


Black 7 Color Fuel Rail Pressure Wiring

The 9' Sensor Harness connects directly to your truck’s factory rail PSI sensor wire for extremely accurate readings directly from the common rail. The 5’ Power Wire includes both power and ground connections. Easily attach included wiring harnesses to the back of the gauge with plug and play cnnnectors.

Mounting Bracket

Black 7 Color Fuel Rail Pressure Mounting Hardware

A Mounting Bracket is included with hardware which attaches the bracket to the back of the gauge for a secure fit in any vehicle’s in-dash mount. The bracket is U-shaped and made out of metal to be extremely durable.

Gauge Visor

Black 7 Color Fuel Rail Pressure Gauge Visor

The gauge visor is used to protect against sun glare so that you’ll have a clear view of readings during the day. This visor easily slips onto the gauge with the wider portion positioned at the top.

Why Do I Need A Rail Pressure Gauge?

GlowShift’s Fuel Rail Pressure Gauge connects to the rail pressure sensor, which is designed to monitor fuel pressure at the common rail. The diesel fuel rail pressure gauge gets its reading by wiring directly into this stock fuel rail sensor. The benefits of having a common rail diesel fuel system include that it offers higher performance, higher injection pressures, reduced emissions, improved fuel efficiency and more. Having a common rail pressure gauge also protects your diesel truck from potential harm to your engine.

Fuel Rail Pressure Gauge Applications

For driving that calls for more out of your Cummins or Duramax -- such as driving long distances or towing heavy loads -- a rail pressure gauge will keep you alerted to make sure your fuel rail pressure is where it needs to be. This gauge can be used to improve mileage or assess whether the filter or lift pump are starting to wear out. Since rail pressures typically run in the area of approximately 27,000 PSI, GlowShift’s fuel rail pressure gauge is more than capable of sufficiently covering your range. This gauge is only compatible with 2003-2018 Dodge Ram with 5.9L and 6.7L Cummins Engine; 2002-2018 Chevrolet Silverado and GMC Sierra with 6.6L Duramax Engine.

Add-On Pigtail Wiring Harness

GlowShift’s Pigtail Harness eliminates the need to splice into any factory wiring to receive rail pressure readings. The harness installs to the rail pressure sensor for extremely accurate readings directly from the common rail. It features a length of 6” with 9” sensor and ground lead wires.

GlowShift Guarantee

GlowShift is your source for cutting-edge aftermarket automotive products specially designed for cars and trucks. Shop with confidence knowing that all purchases are backed by a one year limited warranty and free lifetime tech support. You will also have access to an unrivaled customer support experience in the event you have any questions about our gauges, pods and accessories.

  • Quick & Easy Installation Without Having to Splice or Cut into Factory Wires
  • Connects Directly to Common Rail Pressure Sensor
  • Fits 2003-2012 5.9L & 6.7L Cummins
  • Fits 2002-2018 Duramax LB7, LLY, LBZ, LLM & LML
Tech Specs
Gauge Series: Black 7 Color Series
Brand: GlowShift
Gauge Type: Fuel Rail Pressure
Range of Reading: 0 - 30,000 PSI
Face Color: Black
Size: 52mm
Lens: Clear
Backlighting Color: 7 Colors
Sending Unit: Electronic
Measurement Unit: Standard
Display: Analog

Includes an installation guide which is available online and included with your order. You can also visit our library of installation videos which include complete step-by-step tutorials and useful tips on how to install a wide range of GlowShift products.

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