Speedhut 2-1/16" 40-150C Oil Temp Gauge w/ Warning (R2-OT3-REV)
The Speedhut 2-1/16" 40-150C Oil Temp Gauge w/ Warning (R2-OT3-REV) provides accurate and reliable monitoring of your engine's oil temperature. This metric gauge is essential for performance vehicles, allowing you to keep a close eye on a critical fluid to help prevent potential engine damage. The integrated warning light system adds an extra layer of protection by alerting you when oil temperatures exceed a preset level. Designed for easy installation and long-lasting performance, this gauge is a valuable addition to any serious driver's instrumentation.
KEY FEATURES AND BENEFITS:
Accurate Temperature Monitoring: Displays oil temperature readings from 40 to 150 degrees Celsius for clear insight into engine thermal conditions.
Settable Warning Light: User-definable temperature threshold triggers a visual alert to indicate high oil temperature.
High-Performance Sensor: Includes a 2-wire temperature sender built for responsive and precise measurements.
Standard Gauge Size: Compatible with 2-1/16 inch (52mm) mounting holes, ideal for aftermarket setups.
Complete Wiring Included: Comes with a 3 ft power and lighting harness and dedicated temperature gauge wiring for simplified installation.
Gauge Type: Temperature Gauge
Gauge Subtype: Oil Temperature Gauge
Temp Sender Type: 2-Wire Temp Sender (Performance)
Range: 40-150 °C
Size: 2 1/16 inch (52mm)
Hole Size: 2.062 inches (52mm)
Standard or Metric: Metric
Warning Light: Yes
3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
Temperature Gauge Wiring Harness (2-Wire Cable)
Speedhut Temperature Sensor
Mount the Gauge: Choose a suitable location and drill a 2.062-inch (52mm) hole. Secure the gauge with the spin-lock ring.
Install the Temperature Sensor: Find a proper port on your engine’s oil system and install the included Speedhut temperature sensor with a tight seal.
Connect the Wiring Harnesses:
Attach the Temperature Gauge Wiring Harness (2-Wire Cable) to both the gauge and the sensor.
Connect the 3 ft Power & Lighting Harness to the power and ground terminals on the back of the gauge.
Wire Power and Lighting: Connect to a 12V switched power source and a ground point. Link the lighting wire to your vehicle’s lighting system if needed.
Set the Warning Light: Follow Speedhut’s instructions to configure the critical temperature alert level.
Test the Gauge: Start the engine and monitor the readings. Confirm that the warning light activates when the set threshold is exceeded.
BENEFITS OF USING THE SPEEDHUT 2-1/16" 40-150C OIL TEMP GAUGE W/ WARNING (R2-OT3-REV):
Proactively monitors a key engine parameter to prevent overheating and damage.
Offers precise, reliable data with a performance-grade temperature sensor.
Visual alerts provide early warnings of critical oil temperature levels.
Straightforward installation with complete wiring and sensor included.
Ideal for drivers looking to enhance vehicle protection and performance awareness.
Precise 40-150°C Oil Temperature Readout
User-Configurable Warning Light for High Temperature
Includes Performance-Grade 2-Wire Temperature Sensor
Bright LED Illumination for Day/Night Visibility
Durable, Slim Profile Housing
Easy Installation with Complete Harness and Sensor
Standard 2-1/16 inch (52mm) Mounting Size
Product identification
- Brand: Speedhut
- Model / MPN: R2-OT3-REV




