Speedhut 3-3/8″ 12K RPM Shift-light Tachometer (R3-TC5-REV)

The Speedhut 3-3/8″ 12K RPM Shift-light Tachometer (R3-TC5-REV) is a reliable instrument designed to accurately display your engine’s revolutions per minute (RPM) up to a maximum of 12,000. This gauge is specifically engineered for compatibility with standard spark plug ignition systems found in a wide range of vehicles with 1 to 12 cylinders. Its 3 3/8 inch size, requiring an 84mm mounting hole, makes it a suitable fit for many aftermarket gauge setups. The integrated shift light provides a visual cue for optimal gear changes, enhancing performance and preventing over-revving. This tachometer comes complete with essential wiring harnesses and a mounting ring for straightforward installation.

KEY FEATURES AND BENEFITS:

• Accurate RPM Measurement: Provides precise readings of engine speed up to 12,000 RPM, allowing for optimal engine management.
• Internal Shift Light: Features a built-in shift light that alerts the driver to the ideal shift points for maximizing performance and efficiency.
• Wide Compatibility: Designed for use with standard spark plug ignition systems in engines with 1 to 12 cylinders, offering broad application.
• Convenient Size: The 3 3/8 inch (84mm) size is a popular standard, making it easy to integrate into various gauge pods and dashboards.
• Complete Installation Kit: Ships with the necessary power and lighting harness, as well as a dedicated tachometer signal harness, and a mounting ring, ensuring a smooth installation process.

SPECIFICATIONS:

• Gauge Type: Tachometer
• Tachometer Signal Type: Standard spark plug ignition systems
• Compatibility: 1-12 cylinder engines
• Range: 0-12,000 RPM
• Size: 3 3/8 inch
• Hole Size: 3.3 inches (84mm)
• Internal Shift Light: Yes
• Gauge Mounting Ring: Included
• Ships With:
• 3 ft Power & Lighting Harness (for LED Lit Gauges and Clocks)
• 8 ft Tachometer Harness (for LED Lit Gauges – 1 Wire 2 Pin Connector)

HOW TO USE:

1. Mount the Tachometer: Secure the tachometer in a suitable location on your dashboard or gauge pod using the included mounting ring. Ensure the 3.3-inch (84mm) hole is appropriately sized.
2. Connect the Power and Lighting Harness: Connect the 3 ft Power & Lighting Harness to a 12V power source, ground, and the vehicle’s lighting circuit if you desire the gauge to illuminate with your headlights.
3. Connect the Tachometer Signal Harness: Attach the 8 ft Tachometer Harness to the tachometer. The single wire end of this harness needs to be connected to the negative (-) side of your ignition coil or the designated tachometer output signal wire from your vehicle’s ECU (Engine Control Unit), depending on your specific vehicle.
4. Set the Shift Light (if applicable): Some tachometers may have a procedure for setting the RPM at which the shift light activates. Consult the specific instructions that come with your unit if this feature requires adjustment.
5. Verify Functionality: Once all connections are made, start your vehicle and observe the tachometer to ensure it is reading the engine RPM accurately as the engine speed changes. Check that the shift light illuminates at the desired RPM (if configured).

BENEFITS OF USING THE SPEEDHUT 3-3/8″ 12K RPM SHIFT-LIGHT TACHOMETER (R3-TC5-REV):

• Accurate RPM readings allow you to monitor engine speed and prevent over-revving.
• Integrated shift light optimizes gear changes for enhanced acceleration and efficiency.
• Compatible with a wide range of vehicles featuring standard spark plug ignition systems.
• Easy-to-install design with all necessary harnesses and mounting ring included.
• Provides clear and immediate visual feedback on engine performance.
• Improves driver awareness and control during performance driving conditions.

FEATURES:

• Clearly displays engine speed up to 12,000 revolutions per minute for precise monitoring.
• Incorporates an internal light that signals the ideal moment for gear changes.
• Designed to work seamlessly with common spark plug ignition systems found in 1 to 12 cylinder engines.
• Features a standard 3 3/8 inch diameter for easy integration into many gauge setups.
• Requires a mounting hole of 3.3 inches (84mm) for secure installation.
• Comes with a dedicated 8-foot harness for connecting to the tachometer signal.
• Includes a 3-foot harness for providing power and illumination to the gauge.
• Supplied with a ring to facilitate secure and neat mounting of the gauge.