Description

The Speedhut 4" 10K RPM Tachometer (L4-TC4-LEG) offers precise and reliable monitoring of your engine’s revolutions per minute (RPM) up to 10,000. Designed for compatibility with standard spark plug ignition systems found in a wide range of vehicles with 1 to 12 cylinders, this gauge provides essential information for optimal engine performance and safety. Its clear 4-inch (100mm) display ensures easy readability, allowing you to quickly assess engine speed. The included mounting ring simplifies installation into a standard 3.95" (100mm) dashboard opening. Furthermore, the provided power, lighting, and tachometer harnesses ensure a straightforward wiring process for LED illumination and signal connection. While this model does not feature an internal shift light, its core function of accurate RPM measurement remains paramount for performance driving and engine diagnostics.

KEY FEATURES AND BENEFITS:

• Precise RPM Monitoring: Accurately tracks engine revolutions up to 10,000 RPM.
• Wide Compatibility: Designed for engines with 1 to 12 cylinders using standard spark plug ignition systems.
• Large Display: 4-inch (100mm) face provides excellent visibility.
• Easy Installation: Comes with a mounting ring for standard 3.95" dashboard openings.
• Complete Wiring Included: Includes both power/lighting and tachometer signal harnesses.
• LED Illumination: Vibrant backlighting enhances night-time visibility.

SPECIFICATIONS:

• Standard or Metric: Standard
• Gauge Type: Tachometer
• Tachometer Signal Type: Standard spark plug ignition systems
• Compatibility: 1-12 cylinder engines
• Range: 0-10,000 RPM
• Size: 4 inches (100mm)
• Hole Size: 3.95 inches (100mm)
• Internal Shift Light: No
• 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. Preparation: Identify a suitable 3.95" (100mm) diameter location on your vehicle’s dashboard for mounting the tachometer. Ensure there is sufficient clearance behind the mounting surface for the gauge housing and wiring.
2. Mounting: Insert the Speedhut 4" 10K RPM Tachometer into the prepared opening. Secure it from the rear using the included gauge mounting ring, tightening it until the gauge is firmly in place.
3. Wiring – Power and Lighting: Connect the 3 ft Power & Lighting Harness. Typically, this will involve connecting a wire to a 12V power source that is switched with the ignition, a wire to ground, and a wire to your vehicle’s lighting circuit if you desire the gauge to illuminate with your headlights. Refer to your vehicle’s wiring diagram and the Speedhut harness documentation for specific color-coding and connections.
4. Wiring – Tachometer Signal: Connect the 8 ft Tachometer Harness. This harness will connect to the tachometer signal source, which is typically a negative (-) terminal on your ignition coil or a designated tachometer output from your engine control unit (ECU), depending on your vehicle’s system. Consult your vehicle’s service manual for the correct tachometer signal wire location.
5. Testing: Once all wiring is complete and secure, start your vehicle. Observe the tachometer to ensure it is receiving a signal and displaying the engine’s RPM accurately as the engine speed changes. Verify the LED illumination functions correctly when the vehicle’s lights are turned on.

BENEFITS OF USING THE SPEEDHUT 4" 10K RPM TACHOMETER (L4-TC4-LEG):

• Real-time RPM Feedback: Enables precise gear changes and prevents over-revving.
• Engine Diagnostic Aid: Helps detect idle issues and throttle responsiveness.
• Simplified Installation: Includes mounting ring and harnesses for a smooth setup.
• Improved Visibility: Large display ensures critical data is easily readable at a glance.
• Performance Focused: Tailored for performance drivers and enthusiasts.

FEATURES:

• Accurate monitoring of engine speed up to 10,000 RPM.
• Compatible with ignition systems for engines with 1 to 12 cylinders.
• Large 4-inch gauge face ensures visibility at a glance.
• Slim design fits into standard 3.95" openings with ease.
• Includes mounting ring for secure and straightforward installation.
• Bright LED illumination enhances readability in low light.
• Comes with 8 ft tachometer signal harness for simple integration.
• Includes 3 ft power and lighting harness for convenient wiring setup.