The Speedhut 4-1/2″ Oil Temp / Oil Pressure Dual Gauge (R45-DG6-REV) offers a comprehensive solution for monitoring two critical aspects of your engine’s performance in a single, easy-to-read instrument. This robust 4.5-inch gauge displays both oil temperature and oil pressure, providing essential feedback to help you maintain optimal engine health and prevent potential issues. Designed for straightforward installation, it comes complete with the necessary sensors and wiring harnesses.
KEY FEATURES AND BENEFITS:
- Dual Functionality: Combines oil temperature and oil pressure readings into one gauge, saving dashboard space and simplifying monitoring.
- Clear and Accurate Readings: Displays oil temperature in a range of 100 to 300 degrees Fahrenheit and oil pressure from 0 to 100 psi.
- Standard Units: Utilizes familiar standard units (Fahrenheit and PSI) for easy interpretation.
- Large Display: The 4 1/2 inch size ensures excellent visibility of both readings at a glance.
- Integrated Warning Light: Features a built-in warning light to alert the driver to potentially critical oil temperature or pressure levels.
- Complete Installation Kit: Ships with all required wiring harnesses for both sensors, as well as the temperature and pressure sensors themselves.
- Secure Mounting: Includes a gauge mounting ring for a stable and professional installation.
SPECIFICATIONS:
- Gauge Type: Dual Gauge
- Combo Options: Oil Temperature and Oil Pressure
- Oil Temperature Range: 100 – 300 °F
- Oil Pressure Range: 0 – 100 psi
- Units: Standard (Fahrenheit/PSI)
- Size: 4 1/2 inch (4.5″)
- Hole Size: 4.250 inches (108mm)
- Warning Light: Yes
- Gauge Mounting Ring: Included
- Ships With:
- Pressure Gauge Wiring Harness (3-Wire Cable)
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- Speedhut Temperature Sensor
- Pressure Sensor – 100 psi
- Temperature Gauge Wiring Harness (2-Wire Cable)
HOW TO USE:
- Mount the Gauge: Secure the 4-1/2″ dual gauge in a suitable 4.250-inch (108mm) opening using the provided gauge mounting ring.
- Install the Temperature Sensor: Locate an appropriate port on your engine for the Speedhut temperature sensor and install it securely.
- Connect the Temperature Sensor Wiring: Use the provided 2-wire temperature gauge wiring harness to connect the temperature sensor to the designated terminals on the back of the gauge.
- Install the Pressure Sensor: Find a suitable port on your engine’s oil system for the 100 psi pressure sensor and install it tightly.
- Connect the Pressure Sensor Wiring: Utilize the 3-wire pressure gauge wiring harness to connect the pressure sensor to the corresponding terminals on the back of the gauge. Ensure proper connection of power, ground, and signal wires.
- Connect Power and Lighting: Use the 3 ft power & lighting harness to connect the gauge to a suitable power source and ground in your vehicle’s electrical system. This harness also powers the LED illumination.
- Verify Connections: Double-check all wiring connections to ensure they are secure and correct before powering on your vehicle.
- Monitor Readings: Once installed and powered, the gauge will display real-time oil temperature and pressure readings while your engine is running. Pay attention to the warning light for any potential issues.
BENEFITS OF USING THE SPEEDHUT 4-1/2″ OIL TEMP / OIL PRESSURE DUAL GAUGE (R45-DG6-REV):
- Proactively Monitor Engine Health: By observing oil temperature and pressure, you can detect potential problems early, such as overheating or low oil pressure, before they lead to significant damage.
- Optimize Engine Performance: Maintaining the correct oil temperature and pressure is crucial for optimal engine lubrication and overall performance. This gauge helps you ensure these parameters are within the ideal range.
- Save Dashboard Space: Combining two essential readings into a single gauge reduces clutter and simplifies your instrument panel layout.
- Receive Immediate Alerts: The integrated warning light provides a quick visual indication of potentially dangerous oil temperature or pressure levels, allowing for timely intervention.
- Ensure Proper Installation: The included sensors and wiring harnesses are specifically designed for this gauge, simplifying the installation process and helping to ensure accurate readings.
FEATURES:
- Simultaneous display of oil’s thermal state and lubrication force.
- Visual alert system for critical engine fluid conditions.
- Large 4.5-inch face for enhanced readability during operation.
- Specifically calibrated to measure temperatures from 100°F to 300°F.
- Precisely engineered to indicate pressure levels from 0 to 100 PSI.
- Designed for straightforward mounting in a standard 4.250″ dashboard opening.
- Comes equipped with dedicated wiring for both temperature and pressure sensors.
- Illuminated for clear visibility in all lighting conditions via the included power and lighting harness.
- Includes all necessary components for a complete and functional installation.









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