Description
The Speedhut 2-5/8″ 40-150C Trans Temp Gauge w/ Warning (R25-TT3-REV) provides precise monitoring of your automatic transmission fluid temperature, helping you ensure optimal performance and prevent costly damage due to overheating. This metric gauge displays temperatures from 40 to 150 degrees Celsius and features a user-configurable warning light that alerts you if temperatures exceed a set threshold. Designed for accuracy and reliability, this gauge comes complete with a high-performance 2-wire temperature sender and all necessary wiring for straightforward installation.
KEY FEATURES AND BENEFITS:
- Accurate Temperature Monitoring: Provides precise readings of your transmission fluid temperature within a 40-150°C range, allowing you to stay informed about its operating conditions.
- Overheat Prevention: Integrated warning light alerts you when the transmission temperature rises above a preset level, giving you crucial time to take corrective action and prevent potential damage.
- Performance Sender Included: Comes with a 2-wire performance temperature sender, ensuring fast and accurate temperature readings.
- Metric Display: Clearly displays temperature readings in Celsius, a widely used and understood unit of measurement.
- Complete Wiring Included: Ships with all necessary wiring harnesses, including a power and lighting harness and a dedicated temperature gauge wiring harness, simplifying the installation process.
- Optimal Size: The 2-5/8″ (66mm) gauge size offers excellent visibility without taking up excessive dashboard space.
SPECIFICATIONS:
- Gauge Type: Temperature Gauge
- Gauge Subtype: Transmission Temperature Gauge
- Temp Sender Type: 2-Wire Temp Sender (Performance)
- Range: 40-150 °C
- Size: 2 5/8 inch (66mm)
- Hole Size: 2.67 inches (68mm)
- Standard or Metric: Metric
- Warning Light: Yes
- Ships With:
- Speedhut Temperature Sensor
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- Temperature Gauge Wiring Harness (2-Wire Cable)
HOW TO USE:
- Mount the Gauge: Choose a suitable location on your dashboard or instrument panel and drill a 2.67-inch (68mm) hole. Securely mount the Speedhut Transmission Temperature Gauge in this opening.
- Install the Temperature Sensor: Locate a suitable test port or access point on your automatic transmission pan. Install the included Speedhut Temperature Sensor in this location. Ensure it is securely fastened.
- Connect the Sensor Wiring: Connect one end of the Temperature Gauge Wiring Harness (2-Wire Cable) to the terminals on the Speedhut Temperature Sensor. Connect the other end of this harness to the corresponding terminals on the back of the temperature gauge.
- Connect Power and Lighting: Connect the 3 ft Power & Lighting Harness to the power and ground sources in your vehicle’s electrical system. Typically, you will connect the power wire to an ignition-switched power source and the ground wire to a suitable ground point. Connect the other end of this harness to the appropriate terminals on the back of the gauge to power it and its backlighting.
- Set the Warning Light (if applicable): Refer to the Speedhut gauge’s instructions for details on how to set the desired maximum temperature threshold for the warning light.
- Test the Gauge: Start your vehicle and allow the transmission to warm up. Observe the gauge to ensure it is displaying accurate temperature readings. Verify that the warning light functions correctly when the temperature exceeds the set limit.
BENEFITS OF USING THE SPEEDHUT 2-5/8″ 40-150C TRANS TEMP GAUGE W/ WARNING (R25-TT3-REV):
- Provides real-time temperature monitoring to help you identify issues like low fluid levels or excessive load before they escalate.
- The integrated warning light delivers instant alerts, allowing for timely corrective actions that prevent overheating damage.
- Enables a proactive approach to transmission maintenance, reducing the risk of costly repairs and improving vehicle reliability.
- Enhances safety and peace of mind during demanding driving conditions like towing or uphill driving.
- Extends the lifespan of your vehicle’s transmission by helping maintain proper operating temperatures.
FEATURES:
- Provides instant and precise readings of transmission fluid temperature.
- Equipped with a bright warning light that activates upon reaching a user-defined high-temperature threshold.
- Utilizes a high-quality 2-wire performance sensor for rapid and accurate temperature detection.
- Displays temperature in easily understandable Celsius units.
- Designed with a standard 2-5/8″ (66mm) diameter for versatile mounting options.
- Includes a dedicated wiring harness specifically for the temperature sensor connection.
- Features a separate power and lighting harness for easy electrical hookup.
- The 68mm mounting hole size ensures a secure and proper fit in most aftermarket gauge pods or panels.






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