Description
The Speedhut 4-1/2″ 6K RPM Shift-light Dash Mount Tachometer (R45-TC2-REV) provides accurate and immediate engine speed readings, crucial for performance monitoring and optimal vehicle operation. Featuring a built-in shift light, this gauge allows drivers to precisely identify ideal shift points, maximizing acceleration and efficiency. Designed for straightforward dash mounting and compatibility with a wide range of engines, this tachometer is a valuable addition to any vehicle where precise RPM information is essential.
KEY FEATURES AND BENEFITS:
- Provides real-time engine speed: Displays up to 6,000 RPM.
- Integrated shift light: Indicates optimal gear change points.
- Dash-mount design: Fits standard 4 1/2 inch dash openings.
- Ignition compatibility: Works with standard spark plug ignition systems.
- Cylinder range: Supports 1 to 12 cylinder engines.
- Complete package: Includes mounting hardware and wiring harnesses.
SPECIFICATIONS:
- Measurement System: Standard
- Gauge Type: Tachometer
- Tachometer Signal Type: Standard spark plug ignition systems
- Compatibility: 1-12 cylinder engines
- Range: 0-6,000 RPM
- Size: 4 1/2 inch
- Hole Size: 4.250″ (108mm)
- Internal Shift Light: Yes
- Mount Style: Dash Mount
- 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:
- Preparation: Choose a suitable dashboard location for mounting and ensure space behind the dash for wiring.
- Hole Creation: Cut a 4.250″ (108mm) diameter hole if needed.
- Wiring Connection (Power & Lighting): Connect the power harness to a 12V source, ground, and optional lighting circuit as per vehicle specs.
- Wiring Connection (Tachometer Signal): Connect the tachometer harness to the ignition coil’s negative terminal or ECU tach output.
- Gauge Mounting: Insert and secure the tachometer using the rear mounting ring.
- Shift Light Setup: If applicable, configure the shift light’s activation RPM per manufacturer instructions.
- Testing: Start the engine and verify RPM readings and shift light functionality.
BENEFITS OF USING THE SPEEDHUT 4-1/2″ 6K RPM SHIFT-LIGHT DASH MOUNT TACHOMETER (R45-TC2-REV):
- Precision Monitoring: Delivers instantaneous engine speed feedback for better control.
- Enhanced Performance: Shift light improves timing and prevents over-revving.
- High Visibility: Large 4 1/2 inch display ensures easy readability.
- Broad Compatibility: Supports a wide range of engine types and ignition systems.
- Easy Installation: Comes with all essential components for a quick setup.
FEATURES:
- Displays engine speed up to 6,000 revolutions per minute for accurate monitoring.
- Incorporates an intensely bright internal light that signals the optimal moment to shift gears.
- Designed for direct placement within the vehicle’s dashboard.
- Specifically engineered to receive signals from conventional spark plug ignition setups.
- Adaptable for use with engines containing anywhere from one to twelve cylinders.
- A substantial 4.5-inch gauge face provides excellent visibility of the RPM readings.
- Requires a precisely sized 4.250-inch opening for secure and proper fitting in the dash.
- A ring is provided to firmly affix the gauge to the dashboard from the rear.





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