Description

Accurately monitor your diesel engine’s revolutions per minute with the Speedhut 4-1/2" 6K RPM Diesel Tachometer (L45-TC8-LEG). This gauge provides precise readings up to 6,000 RPM, ensuring you have the vital engine speed information you need. Designed with a standard measurement system, this tachometer is a reliable addition to your vehicle’s instrumentation.

KEY FEATURES AND BENEFITS:

• Diesel Engine Compatibility: Accepts signals from alternator ‘R’ or ‘W’ terminals, crank sensors, and magnetic pulse sensors.
• Large Display Size: 4 1/2-inch (108mm) gauge face ensures clear engine speed visibility.
• Nighttime Visibility: Integrated LED illumination improves gauge readability in low light conditions.
• Standard Mounting: Fits a 4.23-inch (108mm) mounting hole for seamless installation.
• Complete Kit: Ships with 8 ft Htz Tachometer Harness (LED Lit), 3 ft Power & Lighting Harness, and a Gauge Programming Button.

SPECIFICATIONS:

• Measurement System: Standard
• Gauge Type: Tachometer
• Tachometer Signal Type: Diesel (alternator with an ‘R’ or ‘W’ terminal, crank sensor signal, magnetic pulse sensor)
• Range: 6,000 RPM
• Size: 4 1/2 inch
• Mounting Hole Size: 4.23 inches (108mm)
• Internal Shift Light: No
• Ships With:
• Gauge Programming Button (For LED-Lit gauges)
• 8 ft Htz Tachometer Harness (LED Lit)
• 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks

HOW TO USE:

1. Mount the Tachometer: Select a dashboard location with a 4.23" (108mm) diameter opening and insert the gauge securely.
2. Connect the Signal Harness: Attach the 8 ft Htz Tachometer Harness to the engine’s signal source (alternator ‘R’ or ‘W’ terminal, crank sensor, or magnetic pulse sensor).
3. Wire Power and Lighting: Connect the 3 ft Power & Lighting Harness to a switched 12V source, a ground point, and optionally the lighting circuit for illumination.
4. Program the Gauge (If Applicable): Use the included Gauge Programming Button to adjust LED lighting settings as needed.
5. Test Functionality: Confirm all wiring is secure, then start the engine to verify the gauge reads correctly.

BENEFITS OF USING THE SPEEDHUT 4-1/2" 6K RPM DIESEL TACHOMETER (L45-TC8-LEG):

• Helps optimize engine performance by providing accurate RPM data.
• Reduces the risk of engine over-revving and potential damage.
• Improves fuel efficiency through informed driving.
• Enhances safety with a clearly visible, illuminated display.
• Simplifies installation with all required components included.

FEATURES:

• Engineered for diesel RPM measurement with high precision.
• Compatible with alternator, crank, and magnetic pulse signals.
• Large, easy-to-read 4 1/2-inch display.
• Standard 4.23-inch mounting compatibility.
• LED illumination for clear nighttime viewing.
• Includes dedicated harnesses for signal, power, and lighting.
• Programmable LED lighting using the included button.