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Gauges

  • QFS Fuel Pressure Gauge, HFP-FPG QFS
    Quick view

    Fuel Pressure Gauge, HFP-FPG QFS

    $15.98 - $20.98
    HFP-FPG-0-BC
  •  AEM X-Series Wideband UEGO AFR Sensor Gauge w/ Bosch LSU 4 9 Sensor, 30-0300
    Quick view

    AEM X-Series Wideband UEGO AFR Sensor Gauge w/ FAE Sensor, AEM-30-0300

    $199.95
    AEM-30-0300
  •  AEM Digital Wideband UEGO Gauge Controller With Bosch LSU 4.9 AFR O2 Air Fuel Ratio 2 1/16" 52mm 30-4110
    Quick view

    AEM Digital Wideband UEGO Gauge Controller With Bosch LSU 4.9 AFR O2 Air Fuel Ratio 2 1/16" 52mm, AEM-30-4110

    $184.95
    AEM-30-4110
  •  AEM X-Series Tru-Boost Controller Gauge with Boost Control Solenoid, AEM-30-0352
    Quick view

    AEM X-Series Tru-Boost Controller Gauge with Boost Control Solenoid, AEM-30-0352

    $349.95
    AEM-30-0352
  • Phenix Pressure Gauge 0 to 100 Psi 1/8 NPT Silicone Filled
    Quick view

    Pressure Gauge 0 to 100 Psi 1/8 NPT Silicone Filled

    $47.16
    PHX-F305100-3
  •  AEM X-Series Boost Pressure Gauge, AEM-30-0306
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    AEM X-Series Boost Pressure Gauge, AEM-30-0306

    $199.95
    AEM-30-0306
  •  AEM Digital Boost Gauge, AEM-30-4406
    Quick view

    AEM Digital Boost Gauge, AEM-30-4406

    $179.95
    AEM-30-4406
  •  AEM X-Series Pressure Gauge, AEM-30-0301
    Quick view

    AEM X-Series Pressure Gauge, AEM-30-0301

    $199.95
    AEM-30-0301
  • Innovate Motorsports Innovate 38820 SCG 1 Solenoid Boost Controller w/ Wideband Gauge Kit (ALL-IN-ONE) (3882)
    Quick view

    Innovate 38820 SCG 1 Solenoid Boost Controller w/ Wideband Gauge Kit (ALL-IN-ONE) (3882)

    $422.97
    INV-3882
  •  AEM X-Series EGT Gauge , AEM-30-0305
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    AEM X-Series EGT Gauge , AEM-30-0305

    $299.95
    AEM-30-0305
  • Innovate Motorsports Innovate 39030 ECF-1 "FUEL" Ethanol Advanced Complete Gauge Kit (3903)
    Quick view

    Innovate 39030 ECF-1 "FUEL" Ethanol Advanced Complete Gauge Kit (3903)

    $503.97
    INV-3903-91771-BC
  •  AEM X-Series Temperature Gauge, AEM-30-0302
    Quick view

    AEM X-Series Temperature Gauge, AEM-30-0302

    $209.95
    AEM-30-0302
  •  AEM X-Series Oil Pressure Gauge , AEM-30-0307
    Quick view

    AEM X-Series Oil Pressure Gauge , AEM-30-0307

    $239.95
    AEM-30-0307
  • AutoMeter Autometer ROM Signal Adapter for Distributorless Ignitions, AUT-9117
    Quick view

    Autometer ROM Signal Adapter for Distributorless Ignitions, AUT-9117

    $124.97
    AUT-9117-91761-BC
  • Innovate Motorsports Innovate 39120 MTX-D Ethanol Content % & Fuel Temp Gauge Kit
    Quick view

    Innovate 39120 MTX-D Ethanol Content % & Fuel Temp Gauge Kit

    $190.97
    INV-3912
  •  AEM Digital Oil/Fuel Pressure Gauge, AEM-30-4401
    Quick view

    AEM Digital Oil/Fuel Pressure Gauge, AEM-30-4401

    $194.95
    AEM-30-4401
  • Fuelab Fuel Pressure Gauge, EFI, 71501
    Quick view

    Fuel Pressure Gauge, EFI, 71501

    $28.21
    FLB-71501
  •  AEM Digital Wideband UEGO Gauge without Sensor, AEM-30-4110NS
    Quick view

    AEM Digital Wideband UEGO Gauge without Sensor, AEM-30-4110NS

    $139.95
    AEM-30-4110NS

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Gauges FAQs

What types of gauges does Quantum carry?+

Quantum carries a variety of gauges, including fuel pressure gauges, air-fuel ratio gauges, and fuel gauges. These gauges help monitor your vehicle’s fuel system performance and ensure optimal engine tuning.

What is a fuel pressure gauge used for?+

A fuel pressure gauge measures the pressure in your fuel system, helping to ensure that your fuel pump and injectors are delivering the correct amount of fuel. Monitoring fuel pressure is critical for preventing performance issues like running too lean or too rich.

What is an inline fuel pressure gauge, and when should I use one?+

An inline fuel pressure gauge is installed directly in the fuel line, allowing you to monitor fuel pressure in real-time. It’s commonly used in high-performance or modified vehicles to ensure consistent fuel delivery and avoid pressure drops under load.

How do I know if I need a fuel gauge sensor replacement?+

If your fuel gauge is reading inaccurately or not responding at all, it might indicate a faulty fuel gauge sensor. Replacing the sensor can restore proper fuel level readings and help you avoid running out of fuel unexpectedly.

What is an air-fuel ratio gauge, and why is it important?+

An air-fuel ratio gauge monitors the ratio of air to fuel in your engine’s combustion process. It’s essential for tuning performance vehicles, as maintaining the correct air-fuel ratio ensures optimal power, fuel efficiency, and engine longevity.

Can I install a fuel pressure gauge myself?+

Yes, many fuel pressure gauges are designed for easy installation, especially if you choose an inline fuel pressure gauge. However, if you're unfamiliar with fuel system components, it’s recommended to consult a professional for installation.

How do I choose the right fuel gauge for my vehicle?+

To choose the correct fuel gauge, consider your vehicle’s fuel system specifications and the type of fuel reading (electronic or mechanical) you prefer. Quantum Fuel Systems offers a variety of options to suit different applications, from stock vehicles to high-performance builds.

Quantum Fuel Systems offers a wide range of gauges to meet your automotive and powersports needs, including fuel pressure gauges, air/fuel ratio gauges, inline fuel pressure gauges, and fuel gauge sensors. Our selection features top-quality products from trusted brands like Quantum, AEM, Innovate, and Autometer. Whether you're upgrading your system or replacing essential components, you'll find the right gauge for your application. We stock most third-party items in-house, allowing us to provide same-day free shipping on orders over $70. For items we dropship directly from the manufacturer, we ensure quick and attentive service. Trust Quantum for all your gauge needs and enjoy reliable performance and fast delivery.
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About Us

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QFS was born from a desire for freedom: the freedom to keep your ATV, dirt bike, car, or truck running with dependable, OEM-quality, and affordable fuel systems. We want you back on the road without breaking the bank. Skip the costly dealership—our replacement parts ship directly to you and are easy to install. Enjoy OEM performance with unbeatable US-based support and a lifetime warranty. Are you with us?

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