Keep a close eye on two critical engine parameters with the Speedhut 3-3/8″ Cels Water Temp / Oil Pressure (top/bot) (L3-DG5-LEG). This single, easy-to-install unit provides simultaneous readings of your engine’s water temperature in Celsius and oil pressure in PSI, offering valuable insights into its operational health. Designed for accuracy and clarity, this metric gauge is an essential addition for any vehicle owner who prioritizes performance and longevity.
KEY FEATURES AND BENEFITS:
- Dual Functionality: Combines both water temperature and oil pressure readings into a single, space-saving 3-3/8″ (86mm) gauge.
- Metric Measurement: Displays water temperature in Celsius (50-125°C) and oil pressure in PSI (0-100 psi), catering to metric system preferences.
- Complete Kit: Ships with all necessary components, including the pressure sensor, temperature sensor, and the required wiring harnesses for straightforward installation.
- Included Mounting Hardware: Comes with a gauge mounting ring, ensuring a secure and professional-looking fit in your dashboard.
- Clear Readability: The 3-3/8″ size provides ample space for clear and easy-to-read displays of both temperature and pressure values.
SPECIFICATIONS:
- Gauge Type: Dual Gauge (Water Temperature / Oil Pressure)
- Combo Options: Water Temperature (Top), Oil Pressure (Bottom)
- Water Temperature Range: 50-125 °C
- Oil Pressure Range: 0-100 psi
- Measurement System: Metric
- Gauge Size: 3-3/8 inch (3.375″ / 86mm)
- Hole Size Required: 3.375″ (86mm)
- Warning Light: No
- Gauge Mounting Ring: Included
- Included Components:
- Pressure Sensor – 100 psi
- Temperature Gauge Wiring Harness (2-Wire Cable)
- Speedhut Temperature Sensor
- Pressure Gauge Wiring Harness (3-Wire Cable)
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
HOW TO USE:
- Mount the Gauge: Locate a suitable 3.375″ (86mm) diameter hole in your vehicle’s dashboard or instrument panel. Insert the Speedhut dual gauge into the hole and secure it using the included mounting ring from the back of the panel.
- Install the Sensors:
- Temperature Sensor: Locate the appropriate port on your engine’s water system (typically on the thermostat housing or a coolant passage). Install the Speedhut temperature sensor into this port.
- Pressure Sensor: Locate the oil pressure sending unit port on your engine. Remove the existing sender (if present) and install the Speedhut pressure sensor in its place.
- Connect the Wiring:
- Temperature Gauge: Connect the 2-wire temperature gauge wiring harness between the temperature sensor and the corresponding terminals on the back of the Speedhut gauge.
- Pressure Gauge: Connect the 3-wire pressure gauge wiring harness between the pressure sensor and the corresponding terminals on the back of the Speedhut gauge.
- Power and Lighting: Connect the 3 ft power and lighting harness to a suitable 12V power source in your vehicle (ignition switched is recommended) and to the designated terminals on the back of the gauge. This harness will power the gauge’s operation and any backlighting features.
- Secure Connections: Ensure all wiring connections are secure and properly insulated to prevent shorts or loose connections.
- Test the Gauge: With the engine running, observe the gauge readings to confirm proper operation of both the water temperature and oil pressure displays.
BENEFITS OF USING THE SPEEDHUT 3-3/8″ CELS WATER TEMP / OIL PRESSURE (TOP/BOT) (L3-DG5-LEG):
- Real-time monitoring of water temperature and oil pressure from one gauge helps detect problems before they escalate.
- Supports proactive engine maintenance by alerting users to overheating or low oil pressure conditions.
- Simplifies installation with all components and wiring included in the kit.
- Improves visibility and efficiency by consolidating two gauges into one space-saving unit.
- Ideal for metric users who prefer temperature readings in Celsius.
FEATURES:
- Simultaneous display of Celsius water temperature and PSI oil pressure.
- Space-saving 3-3/8″ (86mm) diameter for versatile mounting options.
- Clear and precise metric readings for accurate monitoring.
- Dedicated wiring harnesses included for both temperature and pressure sensors.
- Comes with a 100 psi pressure sensor and a Speedhut temperature sensor.
- Includes a 3 ft power and lighting harness for easy electrical connection.
- Secure mounting ensured with the provided gauge ring.








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