Description
The Speedhut 4″ 8K RPM Tachometer (L4-TC3-LEG) is an essential instrument for monitoring your engine’s performance. This analog gauge provides accurate and immediate readings of your engine’s revolutions per minute, allowing you to stay informed about critical operating conditions. Its classic design seamlessly integrates into a variety of dashboards, offering both functionality and style. Built with quality components and American craftsmanship, this tachometer is designed for reliability and longevity.
KEY FEATURES AND BENEFITS:
- Provides real-time and accurate readings of engine speed up to 8,000 RPM.
- Offers a clear and easy-to-read display with a white face, black numbers, and a distinct red pointer.
- Features LED illumination for enhanced visibility in all lighting conditions.
- Designed with a durable, slim case and a user-friendly spin-lock ring for simple and secure mounting.
- Compatible with a wide range of gasoline engines, including those with 1 to 12 cylinders.
- Built to withstand various environmental conditions thanks to its weather-resistant construction.
- Backed by a lifetime warranty on the electronic circuit board and a 5-year warranty on other parts, ensuring peace of mind.
- Proudly made in the USA, reflecting high standards of quality and manufacturing.
SPECIFICATIONS:
- Gauge Type: Tachometer
- Range: 0 – 8,000 RPM
- Diameter: 4 inches (102mm)
- Mounting Hole Diameter: 3.95 inches (100mm)
- Face Color: White
- Number Color: Black
- Pointer Color: Red
- Bezel Material: Chrome (Aluminum)
- Illumination Type: LED
- Signal Compatibility: Standard spark plug ignition systems
- Cylinder Compatibility: 1-12 cylinders
- Included: Wiring harnesses
HOW TO USE:
- Mount the Gauge: Choose a suitable location on your dashboard and drill a 3.95″ (100mm) mounting hole. Insert the tachometer into the hole.
- Secure the Gauge: From the back of the dashboard, thread the spin-lock ring onto the back of the gauge and tighten it to secure the tachometer in place.
- Connect the Power: Connect the positive (+) wire from the tachometer to a switched 12V power source in your vehicle. Connect the negative (-) or ground wire to a suitable grounding point on the vehicle’s chassis.
- Connect the Tach Signal Wire: Locate the tachometer signal output wire from your vehicle’s ignition system (this is often connected to the negative side of the ignition coil or the ECU depending on your vehicle). Connect the signal wire from the tachometer to this output.
- Connect the Illumination Wire (Optional): If you wish to use the LED illumination, connect the illumination wire from the tachometer to your vehicle’s lighting circuit (e.g., headlight or parking light wire).
- Test the Gauge: Start your engine and observe the tachometer’s reading to ensure it is functioning correctly and displaying the engine’s RPM accurately.
BENEFITS OF USING THE SPEEDHUT 4″ 8K RPM TACHOMETER (L4-TC3-LEG):
- Real-time monitoring: Allows for better awareness of engine status and prevents over-revving.
- Improved driving precision: Enables more accurate gear changes and optimal fuel efficiency.
- Enhanced durability: Weather-resistant design ensures consistent performance in diverse environments.
- Clear visibility: LED illumination supports viewing in both day and night conditions.
- Easy installation: Straightforward setup process simplifies dashboard integration.
- Peace of mind: Long-term warranty reflects confidence in product quality and craftsmanship.
FEATURES:
- Engine RPM Accuracy: Delivers precise real-time measurement of engine revolutions.
- Smooth Pointer Movement: Driven by a high-torque stepper motor for reliable operation.
- Stable Performance: Built-in microprocessor ensures consistent and accurate readings.
- Compact Mounting: Slim profile fits various dashboard types without taking extra space.
- Secure Installation: Spin-lock ring system simplifies and secures the mounting process.
- Enhanced Visibility: Bright LED backlighting ensures readability in low-light situations.
- Broad Compatibility: Works with gasoline engines featuring 1 to 12 cylinders.
- Weather Protection: Designed to resist harsh elements and maintain performance.





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