Description
Speedhut 4-1/2″ Dual Volts / Fuel Level Gauge (R45-DG2-REV) is a versatile and compact instrument designed to monitor two vital vehicle parameters in one efficient unit. Combining voltage measurement and fuel level indication, this dual gauge provides real-time insights into your vehicle’s battery health and fuel status. Its clear, easy-to-read 4 1/2 inch dial fits standard dashboard openings, making it an ideal upgrade or replacement for your vehicle’s instrumentation. The integrated warning light enhances safety by alerting you to low voltage or fuel levels, while the included mounting ring and wiring harnesses facilitate hassle-free installation.
KEY FEATURES AND BENEFITS:
- This gauge displays your vehicle’s voltage, ranging from 6 to 18 volts, allowing you to keep an eye on your battery and charging system’s health.
- Simultaneously, it provides an accurate reading of your fuel level, from Empty to Full.
- The integrated warning light offers an immediate visual cue for potential issues with either voltage or fuel.
- Designed for a 4 1/2 inch mounting hole, this gauge comes complete with a mounting ring and the necessary wiring harnesses for straightforward installation.
SPECIFICATIONS:
- Gauge Type: Dual Gauge
- Combo Options: Voltage and Fuel Level
- Voltage Range: 6-18 volts
- Fuel Level Range: E-F
- Size: 4 1/2 inch
- Hole Size: 4.250 inches (108mm)
- Warning Light: Yes
- Gauge Mounting Ring: Included
- Ships With:
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- Wiring Harness (2-Wire Cable)
HOW TO USE:
- Prepare the Mounting Location: Ensure you have a 4.250-inch (108mm) diameter opening in your dashboard or desired mounting location.
- Connect the Power and Lighting Harness: Attach the 3 ft Power & Lighting Harness to the designated terminals on the back of the gauge. Connect the power wire to a 12V ignition-switched power source, the ground wire to a suitable ground, and the lighting wire to your vehicle’s dash lighting circuit (if desired for illumination).
- Connect the Fuel Level Sender Harness: Connect the 2-Wire Cable harness to the terminals on the back of the gauge intended for the fuel level input. Run the other end of this harness to your vehicle’s fuel level sending unit. You may need to consult your vehicle’s wiring diagram to identify the correct wires.
- Mount the Gauge: Insert the gauge into the 4.250-inch opening and secure it using the included gauge mounting ring from the back of the dashboard. Tighten the ring to ensure a snug fit.
- Test the Gauge: Turn on your vehicle’s ignition to check if the voltage reading is displayed. Verify the fuel level reading corresponds to the fuel in your tank. Check if the warning light illuminates under low voltage or low fuel conditions (note: specific warning light behavior will depend on the gauge’s internal programming, consult the full product manual if available).
BENEFITS OF USING THE SPEEDHUT 4-1/2″ DUAL VOLTS / FUEL LEVEL GAUGE (R45-DG2-REV):
- This dual gauge offers the advantage of monitoring two essential vehicle parameters—voltage and fuel level—in a single, compact 4 1/2 inch unit.
- This consolidation saves valuable dashboard space and provides a cleaner, more integrated look compared to installing two separate gauges.
- The inclusion of a warning light adds an extra layer of awareness for potential electrical or fuel issues.
- Furthermore, the provided wiring harnesses and mounting ring simplify the installation process, making it more accessible for both DIY enthusiasts and professional installers.
FEATURES:
- Integrated Monitoring: Combines voltage (6-18V range) and fuel level (Empty to Full indication) in one display.
- Space Efficiency: The 4 1/2 inch size optimizes dashboard space by providing two readings in a single unit.
- Visual Alert System: Equipped with a warning light to signal potential low voltage or low fuel conditions.
- Direct Fit: Designed for a standard 4.250-inch (108mm) mounting hole for straightforward installation.
- Secure Mounting: Includes a gauge mounting ring to ensure a stable and secure fit in the dashboard.
- Complete Wiring: Ships with a dedicated power and lighting harness, as well as a separate harness for the fuel level sender connection.






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